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HEATH & ASSOCIATES
Gregary B. Heath, P.E.
Transportation & Civil Engineering
2214 Tacoma Road
PUYALLUP, WASHINGTON 98371
(206) 770-1401 FAX (206) 770-1473
DATE
9-15-95
TO
SUBJECT
Cathy Carlson"""""
City.ofYelm.
. Nisqually..Estates ..
>
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. ..th~Y??lr:J998.wa~.JJ~eq.a~ theho;!:;:izonf,orcastyear"."""...
IfYo)JhaY?anYque~tion~,pleaseca,ll.
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B HEATH AND ASSOCIATES (206) 770~ 1401
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Transportatwn and Czvzl E ngmeenng
September 14, 1995
Ms, Cathenne Carlson
CIty of Yelm Planmng Department
105 Yelm Avenue West
Yelm, W A 98597
Subject Nisqually Estates ResIdentIal SubdIvIsIon Traffic Impact AnalysIs
Dear Ms. Carlson,
ThIS letter addresses the comments made In the September 8th letter concermng reVISIons
to the Nisqually Estates Traffic Impact Analysis,
· As dIrected by the CIty of Yelm, EXIStIng peak hour traffic volumes were modIfied to
reflect eXIstIng 1995 counts as provIded by the CIty Planmng Department.
IntersectIOn volumes not provIded In the InformatIon gIven were Increased by a factor
of 1 15 to better represent eXIstIng operatIng condItIons. All volume modIficatIOns are
shown In Figure 4 of the reVIsed report,
· The eXIstIng and future level of servIces for all IntersectIOns were re-analyzed USIng the
modIfied traffic volumes. ThIS informatIon IS provIded In Table 1 of page 10
· References to LOS standards were modIfied to reflect CIty ofYelm standards as
described in the ComprehensIve Plan.
" The reference to pedestnan and bIcycle actIvIty was expanded to Included a dISCUSSIon
on the proposed "Rails-to-Trails" nght of way corndor
o Both LOS Tables were modIfied to reflect the new traffic projectIons
· The nght turn lane analysIs, as described In the appendIx, confirms the need for a nght
turn lane at the north project entrance. All references to nght turn tapers have been
removed from the text.
2214 Tacoma Road · Puyallup, Washington 98371
.
, 1
. The addItIOnal mItIgatIOn measures concernmg frontage Improvements, waiver of
protest, and a nght turn taper for the south entrance have been mcorporated mto the
revIsed report.
I hope thIS letter addresses your key concerns as presented m the preVIOUS letter Please
call If you have any further questIOns
Best Regards,
hk
Greg Heath, P.E
City of Yelm
YELM
WASHINGTON
105 Yelm Avenue West
POBox 479
Yelm, Washington 98597
(360) 458-3244
INDIVIDUAL
FACSIMILE TRANSMITTAL FORM
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FAX NUMBER
INDIVIDUAL
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FROM
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FAX NUMBER
(360) 458-4348
NUMBER OF PAGES TO FOLLOW
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DATE q-(J ,,1 ~
SUBJECT /VI5~c-(CLI17
IftT'tt- It tu /f2..--- d.1/I'1
ADDITIONAL COMMENTS
********IF YOU DO NOT RECEIVE ALL COPIES OR ANY COPY IS
NOT LEGIBLE, PLEASE CALL (360) 458-3244 AS SOON AS
POSSIBLE
@
Recl'cled fXlper
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B HEATH AND ASSOCIATES (206) 770 ~ 1401
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TransportatlOn and Czvzl E ngmeenng
NISQUALLY ESTATES
RESIDENTIAL SUBDIVISION
TRAFFIC IMPACT ANALYSIS
THURSTON COUNTY, W A
Project Proponent Landmark Development
POBox 77
McKenna, W A 98558
Revised
SEPTEMBER 1995
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IEXPtRES: 61301 ~_~
2214 Tacoma Road · Puyallup, Washington 98371
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NISQUALLY ESTATES
RESIDENTIAL SUBDIVISION
TRAFFIC IMPACT ANALYSIS
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TABLE OF CONTENTS
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I. IntroductIon
II. Project Descnptlon
III. Roadway System
IV Forecasted Traffic Demand
V ConclusIOns
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11
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Appendix
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List of Tables
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1 1995 EXistIng LOS
2. Tnp GeneratIon
3 Future LOS With and Without the Project
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11
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LIst of Figures
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1 ViCInIty Map
2. Roadway System
3 SIte Plan
4 1995 EXIstmg Street Volumes
5 Tnp DIstributIon - Project Traffic
6 1998 Street Volumes Without the Project
7 1998 Street Volumes With the Project
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15
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NISQUALLY ESTATES
RESIDENTIAL SUBDIVISION
TRAFFIC IMPACT ANALYSIS
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I.
Introduction
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Vehicular travel IS an Important and dynamIc element of new development whlch dIrectly
Impacts eXlstmg street tl,etworks and mtersections near a project. New development
tYPIcally translates mto added vehlcle tnps on adjacent roadways WhICh often results m an
mcrease m traffic congestlOn to the local area. Traffic Impact Analyses (TINs) serve to
assess the Impacts of new development and provIde mumclpal agencIes and developers
With mItigatmg measures to counteract these Impacts. The purpose of thIS study IS to
assess the traffic Impacts assocIated WIth the proposed Nisqually Estates resIdential
subdiVISion. To make such assessments, a data base of current traffic condItlOns and
operatIons on the pnmary roadways and mtersecttons servmg the sIte IS first developed.
The key roadways mclude Yelm Avenue, State Route 507, Bald Hill Road, 1st Street,
Solberg Street, Mosman Street, Edwards Street, 103rd Avenue, Creek Street, and Morns
Road. StandardIzed tnp generation and tnp dIstribution techmques are then employed to
determme the magmtude of project Impacts and to determme where project traffic travels
to and from. Finally, appropnate concluslOns are made to summanze the Impacts
assocIated WIth thiS development. In addItlOn, the expected contributton of thIS project
toward future roadway Improvement costs IS also determmed. ThIS study ultimately
serves to msure safe and effiCient operatlOn of traffic m the area.
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II. Project Description
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The project as proposed IS a 120 lot resIdentIal development located m the CIty of Yelm of
Thurston County The SIte ltes southwest ofYelm Avenue and borders along the
northwest sIde of SR-507 ThIS plat is expected to utiltze two pnmary access pomts
dIrectly to SR-507 The land use for the SIte IS enttrely smgle family detached resIdentIal
dwelhngs. Most neIghbonng development dIrectly surroundIng the proposed project IS
also resIdentIal. However, slgmficant commercIal development bes northeast of the SIte
along Yelm Avenue and 1st Street. For traffic purposes and based on the owner's
prOjectIons, the project IS antIcipated to be built and occupIed by 1998 Figures 1 and 2
show the project locatIon and the surroundmg street network. The proposed SIte plan
showmg the entrance and the overall lot layout IS shown on Figure 3
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ill. Existing Conditions
A. EXIstmg Street System
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1 Yelm Avenue is a two lane artenal which lies northeast of the SIte and has a posted
speed limit whIch ranges from 20 mph to 35 mph near the project. The roadway
surface IS pnmarily composed of asphalt concrete. Shoulders adjacent to the traveled
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Vicinity tl\aP
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alld TrallSpo-rtation
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RoadvJaY System
figure 2
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Site Plan
Figure
3
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roadway are 3 to 5 feet and are composed of eIther asphalt and gravel or concrete curb
and sIdewalk. Grades are generally level (0 to 2 percent) The roadway widens at Its
mtersectIon WIth SR-507 to accommodate nght and left turn lanes m the southeast
dIrectIon and a left turn lane m the northwest dIrectIOn. Lane WIdths are roughly 11 to
12 feet.
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2 SR-507 IS a two lane desIgnated state hIghway whIch borders the southeast edge of
the sIte. It WIdens at ItS mtersectIon WIth Yelm Avenue to accommodate left turn
lanes on both the nQnheast and southwest approaches (the northeast leg becomes 1st
Avenue) The posted speed hmIt along this roadway IS 25 mph near the Yelm
Avenue/SR-507 mtersectIon. All lane WIdths are roughly 12 feet. The roadway
surface consIsts of asphalt concrete with asphalt/gravel shoulders or curb and SIdewalk
on both SIdes.
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3 Solberg Street IS a two lane roadway whIch has a posted speed hmIt of 25 mph near
the project. Road surfacmg consIsts of asphalt concrete while shoulders are a
combmatIon of asphalt and gravel and range from 3 to 5 feet m Width. Lane WIdths
are generally 11 feet and grades are level (0 to 2 percent)
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4 Mosman Avenue is a two lane roadway with a posted speed hmIt of25 mph. Lane
Widths are roughly 10 5 feet while shoulders are 3 to 5 feet WIde. Road surfacmg
consIsts of asphalt concrete and shoulders are composed of gravel. Grades along the
roadway are generally level.
II
5 Edwards Street hes north of the sIte and has two lanes wIth a posted speed lImIt of 20
mph. Lane WIdths are approxImately 11 5 feet and road surfacmg consIsts of asphalt.
Shoulders adjacent to the travel lanes are eIther curb and SIdewalk or gravel and range
from 3 to 6 feet m WIdth.
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6 103rd Avenue is a two lane roadway WhICh hes east of the SIte and has a posted speed
hmIt of 25 mph. Lane WIdths are generally 11 feet and road surfac10g consIsts of
asphalt concrete. Shoulders are 10 the form of curb and SIdewalk and are 3 to 5 feet 10
WIdth. At the roadway's mtersectIon wIth Yelm Avenue, the roadway WIdens to
accommodate an exclusIve left turn lane. Roadway terram IS generally flat.
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7 Bald Hill Road IS a two lane roadway whIch hes east of the SIte and has a posted speed
hmit of 40 mph. Lane Widths for thIS road are roughly 11 feet and the road surface IS
composed of asphalt concrete. Shoulders are composed of asphalt and gravel.
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8 Morns Road IS two lane roadway whIch 10tersects Bald Hill Road and SR-507 as a
one way segment to form the "five corners" mtersectIon. Roadway surfacmg IS
composed of asphalt concrete and lane WIdths are 11 to 14 feet. Shoulders are narrow
along thIS roadway and are composed of gravel or grass.
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9 Creek Street compnses the fifth leg of the "five corners" mtersectIon. ThIS two lane
roadway hes east of the sIte and has a posted speed hmIt of 25 mph. Grass shoulders
flank the travel lanes whIch are roughly 10 feet wIde. The road surface consIsts of
asphalt concrete.
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B EXIstmg Street Volumes and Patterns
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All field data for thIS study was collected dunng August of 1995 Traffic counts used
were taken dunng the ~yemng peak penod between the hours of 4 and 6 PM. The PM
peak hour was used for analysIs purposes smce It generally represents a worse case
scenano for a resIdentIal development wIth respect to traffic condItIons. This IS pnmarily
due to the common 8 AM to 5 PM work schedule and the greater number of recreatIon
and shoppmg tnps assocIated wIth the late afternoon penod. ResIdents tYPIcally return
home after work at approxImately the same tIme of day, usually between 5 PM and 6 PM.
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Shown below in Figure 4 are the PM peak hour counts taken at the SIX pnmary
mtersectIons ofmterest. These mclude Solberg Street/Yelm Avenue, SR-507/Yelm
Avenue, Edwards Street/Yelm Avenue, Mosman Street/SR-507, 103rd Avenue/SR-507,
and SR-507/Bald Hill Road. All turnmg movements and available average daily traffic
volumes are mcluded m thIS figure.
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C 1995 EXIstmg Level of ServIce
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The peak hour mformatlOn along wIth the general geometnc mtersectlOn data was used to
perform capacIty computatIons m accordance wIth TransportatIOn Research Board SpecIal
Report 209, commonly known as the 1985 Highway CapacIty Manual. CapacIty analysIs
IS used to determme level of servIce (LOS) The methodology for determmmg the LOS at
sIgnahzed mtersectIons stnves to determme the stopped delay for vehIcles desmng to
move across conflictmg traffic streams WhICh have the nght-of-way Delay IS generally
used to measure the degree of dnver dIscomfort, frustratIOn, fuel consumptIOn, and lost
tIme. Stopped delay, m partIcular, IS defined as the amount of tIme a vehIcle, on average,
spends not m motIon or statIOnary at an mtersectIOn.
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The methodology for determmmg the LOS at unsIgnahzed mtersectIons, on the otherhand,
stnves to determme the reserve capacItIes for the vanous vehIcle movements. Reserve
capacIty measures the number of addItIOnal vehIcles that could effectIvely use a partIcular
movement, whIch IS essentIally the eqUIvalent of the dIfference between the movement
capacIty and the eXIstmg movement volume. The range for sIgnahzed mtersectlOn level of
servIces IS LOS lA', mdicatmg httle or no delay, to LOS 'E', mdIcatmg capacIty For
un sIgnalized mtersectlOns, LOS 'A' mdIcates a large reserve capacIty, translatmg to very
httle delay, while LOS lEI mdIcates a small reserve capacIty, 1 e. near capacIty condItIons.
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Note that for analysIs purposes, Yelm Avenue IS generally labeled as an east-west route
while SR-507 (near the project) IS consIdered a north-south route. The exceptIOns he wIth
the 103rd Avenue/Yelm Avenue and the SR-507/Bald Hill Road mtersectIons m WhICh
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1995 !,:~isting street volu~es
'figure 1\
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Yelm Avenue IS consIdered a north-south route and SR-507 IS consIdered an east-west
route. Also note that the five-leg SR-507/Bald Hill Road IntersectIon was treated as a
four-leg IntersectIon SInce Morns Road IS a one way outbound leg whIch does not Impact
conflIctIng vehIcles much differently from vehIcles entenng the Bald Hill Road sectIon. In
order to replIcate a four leg IntersectIOn scheme, sImilar turnmg and through volumes
were combIned. For example, eastbound nght turnIng vehIcles from SR-507 to eIther
Morns Road or Bald Hill Road affect traffic In a sImilar manner Therefore, these nght
turnIng volumes were combIned Into one nght turn movement. ThIS approach IS
reasonable SInce only fq\lr legs of thIS locatIon actually contribute traffic Into the
intersectIon.
The results of the LOS analysIs IS found In Table 1 below A detailed definItIOn of level of
servIce as well as appropnate cntena measures are proVIded In the first sectIOn of the
appendix.
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TABLE 1
1995 Existing LOS
lntersection Control Geometry 1995
Solberg StNelm Ave Stop Northbound D
Southbound D
Edwards StNelm Ave Stop Northbound B
Southbound D
SR-507/Yelm Ave SIgnal Southbound C
Westbound C
Northbound D
Eastbound C
SR-507/Mosman St Stop Westbound B
Eastbound A
103rd Ave/Yelm Ave Stop Eastbound C
Southbound L T A
SR-507/Bald Hill Rd Stop Northbound F
Southbound D
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As shown In the table above, most of the approaches at these IntersectIons are operatIng
above acceptable levels of congestIOn. ThIs IS expected consIdenng the moderate volumes
on most SIde streets along the major corndors. However, SIgnIficant congestIon IS noted
at the SR-507/Bald Hill Road IntersectIon. The northbound approach for thIS "five
corner" locatIon presently expenences LOS F condItIons whIch mdIcates severe delays and
the need for mItIgatmg measures. VehIcles on the Bald Hill Road approach are noticeably
delayed while attemptmg theIr movements mto the SR-507 traffic stream whIch IS
moderately congested dunng the peak hour City of Yelm standards state that LOS D
tYPIcally represents the minImal acceptable level of congestIOn wIthIn cIty ltmits while LOS
C represents the mInImUm outside city lImits. For the most part, vehicles at the other five
locations expenence mInor to moderately long delays dUrIng the PM peak hour perIod.
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D Pedestnan and BIcycle ActIVIty
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While no desIgnated pedestnan and bIcycle paths presently eXIst In the ImmedIate area
near the project, asphalt/gravel shoulders and sIdewalks on SR-507 (northeast of the sIte)
provide adequate space for this type of traffic In additIon, an abandoned railway corndor
WhICh borders the entire southeast edge of the sIte IS planned to be converted Into a
pedestnan walkway for foot traffic along SR-507 and Into and out of the central CIty core.
AccordIng to CIty ofYelm forecasts, thIS IIRails-to-TrailslI project IS expected to be
undertaken In the near ,f;uture. Negligible bicycle actIvity was noted dunng field
observatIons for the subject IntersectIOns. SImilarly, very lIttle pedestnan actIvIty was
observed.
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IV. Forecasted Traffic Demand and Analysis
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A. Tnp Generation
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Tnp generation IS used to determIne the magmtude of project Impacts. ThIS IS usually
denoted by the quantity or specIfic number of new tnps that enter and eXIt a project dunng
a deSIgnated time penod, such as a peak hour (AM or PM) or an entIre day The tnp
generation data presented In thIS report was based on the Institute of TransportatIon
EngIneer's publIcatIon Trip Generation, Fifth EdItion. The land use code used for thIS
project was SIngle Family Detached HOUSIng less than 300 umts (LUC 210) The PM
peak hour between the 4 PM to 6 PM was used as the deSign hour Data for thiS
partIcular time penod was applIed to the street system In order to be used for future
capacIty analYSIS. Table 2 below summanzes the tnp generation used for thiS project.
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TABLE 2
Trip Generation, LUC 210
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Time Period
AWDT
PM Peak Inbound
PM Peak Outbound
PM Peak Total
AM Peak Inbound
AM Peak Outbound
AM Peak Total
120 Units
1,221 vph
83 vph
45 vph
127 vph
25 vph
70 vph
95 vph
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As shown In the table, approxImately 75 percent of the total PM peak tnps are generated
for the AM peak hour penod. Though AM peak hour penod usually contaInS a Similar
number of work related tnps, It tYPIcally does not contaIn as many recreatIOnal and
shoppIng tnps as the PM peak hour penod whIch IS the reason the PM peak IS used for
analYSIS purposes. For the most part, adjacent street volumes follow about the same
Inbound/outbound pattern In the resIdential areas.
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B Tnp AssIgnment and DIstributIon
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The destmatIon and ongmatlon of the generated traffic dIrectly mfluences the SIX key
mtersectIons whIch will effectIvely receIve the bulk of proJect related traffic. In traffic
engmeenng, tnp assIgnment and dIstributIOn IS used to determIne and apply the expected
future proJect traffic, 1.e. the number oftnps as determIned by tnp generatIon, to the road
system and the pnmary roadways.
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The trIpS generated by tbe proJect are expected to follow the general tnp patterns as
shown In Figure 5 ThIS figure reflects pnmarily the home based and work based tnps
expected to be taken by proJect related traffic dunng the peak hour The dIstributIon
pattern of traffic IS based pnmarily on the results of a tnp dIstributIon and assIgnment
model known as T-ModeI2. ThIs model was run by Chamberlam & AssocIates of Lacey,
W A to determIne expected travel patterns based on commerCIal actIvIty and forecasted
resIdentIal development. Roughly 30 percent of all proJect traffic IS expected to be to and
from the northwest VIa Yelm Avenue. Another 30 percent of traffic IS expected to be to
and from the southeast along SR-507, Bald Hill Road, and Morns Road. 10 percent of
traffic should be toward the northeast along 1st Avenue while 5 percent of traffic should
be toward the southwest along SR-507 The remaInIng portIon oftraffic should be Into
and out of the nearby resIdentIal areas. Based on thIs dIstributIOn, detailed assIgnment on
how traffic will access the roadway system IS determIned.
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C Future Traffic Volumes With and Without the ProJect
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The owners of the proJect antICIpate a completIon date for the buildout of thIS proJect by
1998 for traffic purposes. As dIrected by the City of Yelm, the 1998 was used as the
hOrIzon forecast year The future 1998 traffic volumes WIthout the proJect built out were
denved by applYIng a 4 percent growth rate per year to the eXIstIng traffic volumes shown
In Figure 4 ThIS growth rate IS based on hIstoncal traffic growth In the area as well as on
antICIpated development patterns as determmed by the City of Yelm. Figure 6 represents
1998 traffic WIthout the proJect In place. Figure 7 represents 1998 traffic WIth the proJect
and was denved by applymg the project generated tnps from Figure 5 and dIstributIng
them to the roadway volumes found on Figure 6 '
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D Future LOS With the ProJect
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A level of servIce analYSIS was performed usmg the new peak hour volumes WIth the
proJect peak hour tnps applIed. ThIs analysIs Involved the use of two traffic analysIs
computer packages known as the NCAP and SIgnal 85 analYSIS programs. The NCAP
program, whIch follows the Highway CapaCIty Manual's Chapter 9 and 10 procedures for
sIgnahzed and unslgnahzed IntersectIOns, was used to analyze the stop-controlled
IntersectIons of Solberg StreetIYelm Avenue, Edwards StreetIYelm Avenue, SR-
507/Mosman Avenue, 103rd AvenueIYelm Avenue and SR-507/Bald Hill Road. The
SIgnal 85 program, whIch follows the Chapter 9 procedures for SIgnalIzed mtersectIOns,
was used to analyze the SIgnalized IntersectIon ofYelm Avenue/SR-507 A general
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TriP Distribution .. project Traffic
figUx:e S
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Ci'lil and Transportatlon
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street Volumes ~itnout tne project
Figure 6
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VJ'th the -project
,998 5t~eet volumes' ~igu~e 1
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summary of the LOS analysIs results for the mtersectIons comparIng the varIOUS scenarIOS
IS found m Table 3 below
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TABLE 3
Future LOS With and Without, the Project
Intersection Control Geometry 1995 1998 1998w
Solberg St/Yelm Ave Stop Northbound D D D
.. Southbound D D D
Edwards St/Yelm Ave Stop Northbound B B C
Southbound D D D
SR-5071Yelm Ave Signal Southbound C C C
Westbound C D D
Northbound D D E
Eastbound C D E
SR-507/Mosman St Stop Westbound B B C
Eastbound A A B
103rd AvelYelm Ave Stop Eastbound C C D
Southbound L T A A A
SR-507/Bald Hill Rd Stop Northbound F F F
Southbound D E E
SR-507 IN Entrance Stop Eastbound D
Northbound LT A
SR-507/S Entrance Stop Eastbound C
Northbound LT A
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As shown m the table, by the year 1998, some congestion IS expected for most of the
approaches at the eIght mtersectIons studIed. The pnmary cause of thIS degradatIon IS
anticIpated traffic growth m the local area. As one will notice, only a portIOn of the
mtersectIOn approaches show a fall m LOS as a result of the proJect. The level of servIce
for the SR-507/Bald Hill mtersectIon northbound approach reaches LOS F condItions by
the year 1998 whIch mdicates heavy congestIOn and substantIal delays to motonsts. The
southbound approach for thIS mtersectIOn falls to LOS E. The mtersectIon of SR-507 and
y elm Avenue IS also expected to operate at hIgh levels of congestIon by 1998 WIth the
proJect. The northbound and eastbound approaches should operate at LOS E condItIons
With the proJect completed. Recall that the range of LOS C to LOS D IS generally used to
describe the mimmal acceptable level of congestion according to City of Yelm standards.
All movements and approaches not lIsted m the above table should operate WIth only
mmor delays by the year 1998 VehIcles entenng and eXItmg at the proJect entrance
location should do so With only moderate delays.
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E. Left Turn Warrant AnalYSIS for SR-507
When necessary, left turn lanes may be used as an effectIve means for allevIatmg potentIal
safety and progreSSIOn problems at an mtersectIon. When congestIon occurs at a proJect
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entrance, It IS often the result of left turnmg vehIcles "blockmg" the larger through traffic
volume m the same dIrection. Left turn lanes enable left turnIng vehIcles to watt m a
desIgnated pocket to complete theIr maneuvers while causmg lIttle dIsruptIOn to through
traffic. A left turn warrant analysIs was conducted to determme whether or not a left turn
pocket would be necessary to mitIgate potentIal progressIOn and safety hazards at the
project entrances. ThIS analYSIS was based on procedures described m the 1990 AASHTO
publIcation, "A Pohcy on Geometnc DeSIgn of Highways and Streets II as well as those
described m the WSDOT DeSIgn Manual. The results of the analysIs mdIcate that left turn
pockets would not be Q~eded at these locatIOns m the near future. A detailed summary of
the analYSIS IS gIven near the end of the appendIx.
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F RIght Turn ChannelIzatIon for SR-507
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RIght turn lanes and tapers are often necessary at certam mtersectlOns on two-lane and
multI-lane roadways to allow smoother, more effiCIent, and safer through-traffic
progressIOn. These lanes and tapers enable nght turnmg vehIcles to decelerate m a
deSIgnated area while affectmg through traffic only mInImally As directed by WSDOT,
nght turn channelIzatIOn was studIed at the two proJect entrances on SR-507 to determme
whether or not nght turn lanes or tapers would be requIred at these locatIons. ThIS study
was based on procedures described m the WSDOT DeSIgn Manual. The results of the
study mdIcate that no nght turn lane would be needed at the south entrance for the
proJect. However, at the north entrance, a deSIgnated right turn lane would be needed.
According to the deSIgn procedures described, thIS turn lane should be a mmImum of 60
meters m length (includmg taper) and 3 6 meters Wide. An illustratIon of thIS type of
deceleratIOn facility IS given m the appendix.
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V. Conclusions and MitIgating Measures
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The Nisqually Estates proJect IS expected to generate 1221 new tnps per day to the local
traffic stream. Of thIS daily traffic, apprOXImately 83 tnps are expected mto the SIte and
45 tnps are expected to travel out of the SIte dunng the PM peak hour Dunng the AM
peak hour, 25 tnps are expected mto the SIte WIth 70 tnps outbound.
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As discussed m the preVIOUS sectIOn, notIceable congestIOn IS expected m the general area
by the year 1998 AntIcIpated traffic growth IS the pnmary cause of thIS congestIOn.
Most of the key movements and approaches for the studIed mtersectIons should operate at
acceptable levels of delay by 1998 WIth the proJect built out. However, as mentIoned
earlIer, certam approaches are expected to expenence hIgh levels of delay m the next five
years. Of partIcular concern are the northbound and southbound approaches (Bald Hill
Road) for the five comer SR-507/Bald Hill Road mtersectIon WhICh are expected to
operate at LOS F and LOS E by 1998 WIth the proJect built out. ThIS mtersectIon has
been targeted for extenSIve Improvements by the CIty of Yelm. As dIrected by thIS
agency, all proJects Impactmg the five comers mtersectlon should be reqUIred to
contribute theIr faIr share of Improvement costs based on the total number of peak hour
proJect generated tnps utihzmg the mtersectlOn. For each peak hour tnp, an arbitrary
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Improvement contributIon of$300 IS reqUIred. For thIS proJect, a total of39 peak hour
proJect tnps utilize thIS locatIon. Therefore, a total of (39)($3 00) = $11,700 should be
contributed by the developer toward mtersectIon Improvements.
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In addItion to the planned Improvements at the five corners mtersectIOn, a nght turn lane
should be constructed at the north proJect entrance to allevIate potential congestIon at thIS
locatIOn. As mentIOned m SectIon F above, thIS nght turn lane should have a total length
of at least 60 meters. ThIS lane should be constructed to meet all applIcable WSDOT
standards as described )1lchapter 9 of the deSIgn manual.
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Due to the hIgh speeds of vehIcles along SR-507 near the proJect, a nght turn taper should
be constructed at the south entrance for the southbound approach on SR-507 ThIS taper
would mmImIze the dIsruptIon of southbound through traffic and would help reduce the
occurrence of rear-end aCCIdents. Though the nght turn lane analysIs for the south
entrance does not mdIcate a need for thIS taper (see appendIx), the benefits of thIS measure
would be sIgmficant and would ensure safe vehIcle progreSSIOn at thIS locatIon.
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SIte frontage Improvements to SR-507 conformmg to an urban artenal standard should be
deferred until other adjacent propertIes develop ThIS method of Implementmg roadway
Improvements ensures that a smgle proJect can be built out WIthout the problem of pIece-
meal constructIOn.
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The project owner should be willIng to SIgn a tlWaIver ofProtesttl for a future Local
Improvement DIstnct (LID)
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The above mentIoned Improvements at the locatIon of SR-507 & Bald Hill Road, the nght
turn lane and taper at the proJect entrances, and the comments regardmg SIte frontage
Improvements constItute the only recommended mItIgatmg measures for thIS proJect.
Traffic mto and out of the SIte should expenence moderate delays in the future WIth
generally safe progreSSIOn at the proJect entrances. With the Improvements mcorporated
at SR-507 & Bald Hill Road and the entrances, area WIde traffic should contmue to
operate sattsfactorily Overall, the Nisqually Estates reSIdentIal development IS only a
moderate generator of traffic and should not Impact area WIde traffic congestIon severely
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NISQUALLY ESTATES
'1 RESIDENTIAL SUBDIVISION
J TRAFFIC IMPACT ANALYSIS
n APPENDIX
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LEVEL OF SERVICE
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The followmg are excerpts from the 1985 Highway Capacity Manual - Special Report
209
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The concept oflevel of servIce IS defined as a qualItatIve measure describmg operatIonal
condItIOns wIthm a traffic stream, and theIr perceptIon by motonsts and/or passengers. A
level of servIce (LOS) .defimtIon generally describes these conditIons m terms of such
factors as speed and travel tIme, freedom to maneuver, traffic mterruptIOns, comfort and
convemence, and safety
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SIX levels of servIce are defined for each facilIty for whIch analYSIS procedures are
available. They are gIven letter deSignations, from A to F, WIth LOS A representmg the
best operatmg condItIons and LOS F the worst.
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Level-of-ServIce defimtIons
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The followmg defimtIons generally define the vanous levels of servIce for umnterrupted
flow facilItIes.
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Level of service A represents free flow conditIons. IndiVIdual users are virtually
unaffected by the presence of others m the traffic stream. Freedom to select desIred
speeds and to maneuver wIthm the traffic stream IS extremely hIgh. The general level of
comfort and convemence proVIded to the motonst, passenger, and pedestnan IS excellent.
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Level of sen'ice B IS m the range of stable flow, but the presence of other users m the
traffic stream begms to be notIceable. Freedom to select desIred speeds IS relatIvely
unaffected, but there IS a slight declme m the freedom to maneuver wIthm the traffic
stream from level of servIce A. The level of comfort and convemence proVIded IS
somewhat less than at the level of servIce A, because the presence of others begms to
affect mdIvIdual behavIOr
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Level of sen'ice CIS m the range of stable flow, but marks the begmmng of the range of
flow m whIch the operatIOn of mdIvIdual users becomes sIgmficantly affected by the
mteractIOns WIth others m the traffic stream. The selectIon of speed IS now affected by the
presence of others, and maneuvenng wIthm the traffic stream reqUIres substantIal VIgilance
on the part of the user The general level of comfort and convemence declines notIceably
at thIS level.
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Level of service D represents hIgh-densIty, but stable, flow conditIOns. Speed and
freedom to maneuver are severely restricted, and the dnver or pedestnan expenences a
generally poor level of comfort and convemence. Small mcreases m traffic flow will
generally result m the occurrence of operatIOnal problems at thIS level.
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Level of service E represents operatmg condItIons at or near the capacIty level of a gIven
facihty All speeds are reduced to a low but relatIvely uruform level. Freedom to
maneuver wIthm the traffic stream IS extremely dIfficult, and It IS generally accomplIshed
by forcmg a vehIcle or pedestnan to "gIve way" to accommodate such maneuvers.
Comfort and convenience levels are extremely poor, and dnver or pedestnan frustratIon IS
generally hIgh. OperatIons at thIS level are usually unstable, because small mcreases m
flow or mmor perturbatIons wIthm the traffic stream will cause breakdowns.
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Level of service F IS used to define forced or breakdown flow This conditIOn eXIsts
whenever the amount of traffic approachmg a pomt exceeds the amount whIch can
traverse the pomt. Queues form behmd such locatIons. OperatIons wIthm the queue are
charactenzed by stop-and-go waves, and they are extremely unstable. VehIcles may
progress at reasonable speeds for several hundred feet or more, then be reqUIred to stop m
a cyclic fashIon. Level-of-servIce F IS used to describe the operatmg condItIons wIthm the
queue, as well as the pomt of the breakdown. It should be noted, however, that m many
cases operatmg condItIons of vehIcles or pedestnans dIscharged from the queue may be
qUIte good. Nevertheless, it is the point at which arrival flow exceeds discharge flow
whIch causes the queue to form, and the level-of-servIce F IS an appropnate desIgnatIon
for such pomts.
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These defirutIons are general and conceptual m nature, and they apply pnmarily to
unmterrupted flow Levels of service for mterrupted flow facihtIes vary WIdely m terms of
both the user's perceptIOn of service quality and the operatIonal vanables used to describe
them.
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F or each type of facihty, levels of servIce are defined based on one or more operatIonal
parameters whIch best describe operatmg quality for the subJect facility type. While the
concept oflevel of servIce attempts to address a WIde range of operatmg condItIons,
hmItatIons on data collectIon and availabihty make It ImpractIcal to treat the full range of
operatIOnal parameters for each type offacihty The parameters selected to define levels
of service for each facIhty type are called "measures of effectiveness" or "MOE's", and
represent those available measures that best describe the quahty of operatIon on the
subJect facility type.
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Each level of servIce represents a range of condItIons, as defined by a range m the
parameters gIven. Thus, a level of servIce IS not a discrete conditIOn, but rather a range of
condItIons for whIch boundanes are estabhshed.
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The followmg tables describe levels of service for signalized and unsIgnahzed
mtersections. Level of service for sIgnahzed mtersectIons is defined m terms of delay
Delay IS a measure of dnver dIscomfort, frustratIOn, fuel consumptIOn and lost travel tIme.
Specifically, level-of-servIce cntena are stated m terms of the average stopped delay per
vehtcle for a 15-mmute analysts penod. Level of servIce for unsIgnahzed mtersectlOns IS
measured m terms of unused, or reserve capacity of the lane in questIon.
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Signalized Intersections - Level of Service
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Level of ServIce
A
B
C
D.,
E
F
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Stopped delay per
VehIcle (sec)
less than 5 1
5 1 to 15 0
15 1 to 25 0
25 1 to 40 0
40 1 to 60 0
greater than 60 0
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Unsignalized Intersections - Level of Service
II
II
Reserve
CapacIty
400+
300-399
200-299
100-199
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Level of ServIce
A
B
C
D
E
F
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Expected Delay to Minor
Street Traffic
LIttle to no delay
Short traffic delay
Average traffic delay
Long traffic delays
Very long traffic delays
The level of service for a four-way stop controlled mtersectlon IS not as well defined as
other forms of control. The followmg three tables show the capacIty for a four-way stop
and the approximate level of service C volumes for four-way stop-controlled mtersectlons.
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Capacity of Two-by- Two Lane Four-Way Stop Controlled
Intersection for Various Demand Splits
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Demand Spht
50/50
55/45
60/40
65/35
70/30
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CapacIty(vph)
1900
1800
1700
1600
1500
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Capacity of Four-Way Stop Controlled Intersections with 50/50
Demand Split for Various Approach Configurations
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IntersectIOn Type
2-lane by 2-lane
2-lane by 4-lane
4-lane by 4-lane
CapacIty (vph)
1900
2800
3600
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Approximate Level of Service C Service Volumes for
Four-Way Stop-Controlled Intersections
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LOS C ServIce Volume, vph
Number of Lanes
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Demand SplIt
50/50
55/45
60/40
65/35
70/30
2 by2
1200
1140
1080
1010
960
2 by4
1800
1720
1660
1630
1610
4 by4
2200
2070
1970
1880
1820
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SUMMARY OF TRIP GENERATION CALCULATION
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AVERAGE STANDARD ADJUSTMENT WAY
.. RATE DEVIATION FACTOR VOLUME
AVG WKDY 2-WAY VOL 10.17 0.00 1.00 1221
7-9 AM PK HR ENTER 0.20 0.00 1.00 25
7-9 AM PK HR EXIT 0.58 0.00 1.00 70
7-9 AM PK HR TOTAL 0.79 0.00 1.00 95
4-6 PM PK HR ENTER 0.69 0.00 1.00 83
4-6 PM PK HR EXIT 0.37 0.00 1.00 45
4-6 PM PK HR TOTAL 1.06 0.00 1. 00 127
AM GEN PK HR ENTER 0.21 0.00 1.00 25
AM GEN PK HR EXIT 0.60 0.00 1.00 72
AM GEN PK HR TOTAL 0.81 0.00 1.00 97
PM GEN PK HR ENTER 0.70 0.00 1.00 84
PM GEN PK HR EXIT 0.38 0.00 1.00 45
PM GEN PK HR TOTAL 1.08 0.00 1.00 129
SATURDAY 2-WAY VOL 11.17 0.00 1.00 1341
PK HR ENTER 0.56 0.00 1.00 68
PK HR EXIT 0.48 0.00 1.00 58
PK HR TOTAL 1. 04 0.00 1.00 125
SUNDAY 2-WAY VOL 8.67 0.00 1.00 1041
PK HR ENTER 0.50 0.00 1.00 61
PK HR EXIT 0.50 0.00 1.00 61
PK HR TOTAL 1. 01 0.00 1.00 121
Note: A zero rate indicates no rate data available
The above rates were calculated from these equations:
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24-Hr. 2-Way Volume: LN(T) = .921LN(X) + 2.698, R^2 = .96
7-9 AM Peak Hr. Total: LN(T) = .867LN(X) + .398
R^2 = .89 , .26 Enter, .74 Exit
4-6 PM Peak Hr. Total: LN(T) = .902LN(X) + .528
R^2 = .92 , .65 Enter, .35 Exit
AM Gen Pk Hr. Total: LN(T) = .858LN(X) + .464
R^2 = .89 , .26 Enter, .74 Exit
PM Gen Pk Hr. Total: LN(T) = .892LN(X) + .59
R^2 = .91 .65 Enter, .35 Exit
,
Sat. 2-Way Volume: T = 9.217(X) + 234.586, R^2 = .93
Sat. Pk Hr. Total: T = .871(X) + 20.759
R^2 = .9 , .54 Enter, .46 Exit
Sun. 2-Way Volume: T = 8.881(X) + -25.166, R^2 = .94
Sun. Pk Hr. Total: T = .761(X) + 29.705
R^2 = .88 .5 Enter, .5 Exit
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Source: Institute of Transportation Engineers
n Trip Generation, 5th Edit~on, with Feb. 1995 Update.
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NISQUALLY ESTATES
YEIM AVE & SR-507
1995 EXISTING IDS
09/14/95
08:29:34
SIGNAL94/TEAPAC [VI Ll.4] - HCM Input Worksheet
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Intersection # o -
95 60 60
.0 t 12.0 12.0
0 1 1
------------- / \
Area Ia::ation Type: NONCBD
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Key: VOLUMES -- >
I WIJJI'HS
v lANES
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35 .0 0
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/ \
405 12.0 1
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135 12.0 1 /
+
/ 160 12.0 1
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North
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515 12.0 1 --
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IDS'l'l'IME = 3.0 see.
135
12.0
1
85
12.0
1
195
.0
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Phasing: SEQUENCE 54
PERMSV N N N N
OVERLP Y Y Y Y
LEADU\G LD LD
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Appr Grade % Heavy Veh. Aclj.Pkg Bus Pk.Hr.Factor Conf.Ped Actuated Arr.Type
---- ----- -------------- ------- --- -------------- -------- -------- --------
% Rl' TH LT Ia:: Nm Nb Rl' TH LT peds/hr Rl' TH LT Rl' TH LT
il
J
1
LJ
'1
LJ
---- ----- -------------- ------- --- -------------- -------- -------- --------
SB
WE
NB
EB
.0
.0
.0
.0
2.0 2.0 2.0 NO 0
2.0 2.0 2.0 NO 0
2.0 2.0 2.0 NO 0
2.0 2.0 2.0 NO 0
o .90 .90 .90
o .90 .90 .90
o .90 .90 .90
o .90 .90 .90
0-
0-
0-
0-
N N N 3 3 3
N N N 3 3 3
N N N 3 3 3
N N N 3 3 3
---- ----- -------------- ------- --- -------------- -------- -------- --------
-------------------------------------------------------------------------
il
I
U
Sq 54 I Phase 1 I Phase 2 I Phase 3 I Phase 4 I Phase 5 I Phase 6 I
**/** -------------------------------------------------------------------------
+ +++ ++ ^
+ +++ ++ ++++
+> <+ + +> <+ + <++++
v v ^ ****
.
/ \
11
J
++++ v
North <*
I ++++ *
v *
* *>
* *
* *
****>
++++
v
'1
J
-------------------------------------------------------------------------
n
J
G/c= .093
G= 5.6"
Y+R= 4.0"
OFF= .0%
G/e= .000
G= .0"
Y+R= .0"
OFF=16.0%
G/c= .204
G= 12.2"
Y+R= 4.0"
OFF=16.0%
G/C= .111
G= 6.7"
Y+R= 4.0"
0FF=43.0%
G/e= .326
G= 19.5"
Y+R= 4.0"
OFF=60.8%
G/C= .000
G= .0"
Y+R= .0"
OFF= .0%
C= 60 see G= 44.0 see = 73.3% Y=16.0 see = 26.7% Ped= .0 see = .0%
n
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il
LJ
'1
I
LJ
'l
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NISQUALLY ESTATES
YEIM AVE & SR-507
1995 EXISTING LOS
09/14/95
08:29:38
'l
L.J
SIGNAL94/TEAPAC[V1 L1.4] - HCM Vol\.lIre Adjusbrent Worksheet
n
J
n
Appr Mvt F1CllN Lane Group No.of Lane Adj Prop. of
-Mvt Vol PHF Rate Group F1CllN Lanes util F1CllN LT Rl'
vph vph vph vph
SB-Rl' 95 .90 106' 0 0 1.00 0 .00 .00
SB-TH 60 .90 67 TH+Rl' 173 1 1.00 173 .00 .61
SB-LT 60 .90 67 LT 67 1 1.00 67 1. 00 .00
J
I
U
------------------------------------------------------------------
n
LJ
WB-Rl' 35 .90 39
WB-TH 405 .90 450
WB-LT 160 .90 178
o
TH+Rl' 489
LT 178
o
1
1
1.00
1.00
1.00
o .00 .00
489 .00 .08
178 1.00 .00
------------------------------------------------------------------
n
J
NB-Rl' 195 .90 217
NB-TH 85 .90 94
NB-LT 135 .90 150
o
TH+Rl' 311
LT 150
o
1
1
1.00
1.00
1.00
o .00 .00
311 .00 .70
150 1.00 .00
------------------------------------------------------------------
J
EB-Rl' 70 .90 78
EB-TH 515 .90 572
EB-LT 135 .90 150
Rl'
TH
LT
78
572
150
1
1
1
1.00
1.00
1.00
78 .00 1.00
572 .00 .00
150 1.00 .00
------------------------------------------------------------------
'1
J
J
SIGNAL94/TEAPAC[V1 L1.4] - HCM Saturation F1CllN Adjusbrent Worksheet
Ap Lane No Adjusbrent Factors Adj
pr Group Ideal of -------------------------------------------------- Sat-
ch Mvrnts Satfl Lns Lane Heavy Bus Ar Right left Adj flCllN
p::phg - Width Vehs Grade Parkg Blcx::k Loc Turn Turn Fact vphg
'1
J
SB- TH+Rl' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .908 1.000 1.00 1692
SB- LT 1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
n
I
U
-------------------------------------------------------------------------------
WB- TH+Rl' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .988 1.000 1.00 1840
WB- LT 1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
-------------------------------------------------------------------------------
n
U
NB- TH+Rl' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .895 1.000 1.00 1668
NB- LT 1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
-------------------------------------------------------------------------------
J
J
EB- Rl'
EB- TH
EB- LT
1900 1 1.000 .980 1.000 1.000 1.000 1.0 .850 1.000 1.00 1583
1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 1.000 1.00 1863
1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
-------------------------------------------------------------------------------
'1
LJ
fl
J
n
u
'l
J
'l
J
n
J
NISQUALLY ESTATES 09/14/95
YEIM AVE & SR-507 08:29:41
1995 EXISTING LOS
SIGNAL94/TEAPAC[V1 L1.4] - HCM Capacity Analysis Worksheet
Ap Lane LT Adj Adj FlCM Green Lane V/C Crit
pr Group Phase FlCM Satfl Ratio Ratio Group Ratio Lane
ch Mvts Type Rate Rate vis g/C Capac v/c Grp
vph vphg vph
SB- TH+Rl' 173 1692 .102 .220 372 .465
SB- LT Prio 67 1770 .038 .110 194 .345 *
J
II
J
11
u
WB- TH+Rl' 489
WB- LT Prio 178
1840
1770
.266 .342
.101 .128
630 .776
226 .788
*
n
L.J
NB- TH+Rl' 311
NB- LT Prio 150
1668
1770
.186 .220
.085 .110
367 .847
194 .773
*
'l
J
EB- Rl'
EB- TH
EB- LT
78
572
Prio 150
1583
1863
1770
.049 .502
.307 .342
.085 .128
795 .098
638 .897
226 .664
*
II
I
J
Cycle length, C 60 see
wst T.i.Ire Per Cycle, L 12.0 see
Smn(v/s) =
Xc =
.632
.790
'l
J
SIGNAL94/TEAPAC[V1 L1.4] - HCM I.evel-of-Service Worksheet
J
Ap Lane
pr Group
ch Mvts
Vol Green Unif Delay Lane Cal Incr Lane Lan
Ratio Ratio Delay Fact Group Tenn Delay Group Grp Appr Appr
v/c g/C d1 DF Capac m d2 Delay LOS Delay LOS
-- see/v vph - see/v see/v - see/v
'l
J
n
f I
LJ
SB- TH+Rl' .465 .220 15.4 1.00 372 16 .69 16.1 C+
SB- LT .345 .110 18.8 1.00 194 16 .44 19.2 C+
------------------------------------------------------------------> 17.0 C+
WB- TH+Rl' .776 .342 13.4 1.00 630 16 4.21 17.6 C+
WB- LT .788 .128 19.3 1.00 226 16 11.29 30.6 D+
------------------------------------------------------------------> 21.1 C
NB- TH+Rl' .847 .220 17.0 1.00 367 16 11.53 28.6 D+
NB- LT .773 .110 19.7 1.00 194 16 11.65 31.4 D+
------------------------------------------------------------------> 29.5 D+
EB- Rl' .098 .502 5.9 1.00 795 16 .00 5.9 B+
EB- TH .897 .342 14.2 1.00 638 16 10.95 25.2 D+
EB- LT .664 .128 19.0 1.00 226 16 4.86 23.8 C
------------------------------------------------------------------> 23.0 C
Cycle= 60"
Int Total .749 > 23.1 C
n
L.J
J
'I
I
U
n
J
J
'1
J
II
I
U
il
J
NISQUALLY ES~S
YEIM AVE & SR-507
1995 EXISTING IDS
09/14/95
08:29:43
'l
J
SIGNAL94/TEAPAC[V1 L1.4] - Evaluation of Interseetion Perfonnance
n
J
-------------------------------------------------------------
J
J
Sq 54 I Phase 1 I Phase 2 I Phase 3 I Phase 4 I Phase 5 I
**/** -------------------------------------------------------------
+ +++ ++ ^
+ +'+ + + + -H++
+> <+ + +> <+ + <-H++
v v ^ ****
.
/ \
^
-H++ v
II
I
LJ
North
I
<*
-H++ *
v*
* *>
* *
* *
****>
-H++
v
-------------------------------------------------------------
II
,
u
G/C= .093
G= 5.6"
Y+R= 4.0"
OFF= .0%
G/e= .000
G= .0"
Y+R= .0"
OFF=16.0%
G/C= .204
G= 12.2"
Y+R= 4.0"
OFF=16.0%
G/C= .111
G= 6.7"
Y+R= 4.0"
0FF=43.0%
G/C= .326
G= 19.5"
Y+R= 4.0"
OFF=60.8%
-------------------------------------------------------------
'1
LJ
C= 60 see G= 44.0 see = 73.3% Y=16.0 see = 26.7% Ped= .0 see = .0%
'l
J
MVMI' 'IDl'AIS SB Approach WE Approach NB Approach EB Approach Int
Param:Units Rl' TH LT Rl' TH LT Rl' TH LT Rl' TH LT Total
-
-
AdjVol: vph 106 67 67 39 450 178 217 94 150 78 572 150 2168
Wid/Ln:ft/# 0/0 12/1 12/1 0/0 12/1 12/1 0/0 12/1 12/1 12/1 12/1 12/1
g/C Rqd@C:% 0 14 7 0 30 14 0 23 12 8 34 12
g/C Used: % 0 22 11 0 34 13 0 22 11 50 34 13
SV @E: vph 0 372 187 0 630 222 0 367 187 795 638 222 3620
----------- -------------- -------------- -------------- -------------- -----
Svc Lvl:IDS C+ C+ C+ D+ D+ D+ B+ D+ C C
Deg Sat:v/c .00 .47 .34 .00 .78 .79 .00 .85 .77 .10 .90 .66 .75
Avg Del:s/v .0 22.7 27.2 .0 23.8 44.9 .0 41.9 46.6 8.1 37.4 33.5 33.4
Tot Del:min 0 16 8 0 49 33 0 54 29 3 89 21 302
# Stops:veh 0 38 15 0 109 43 0 75 36 10 136 36 498
----------- -------------- -------------- -------------- -------------- -----
Max Que :veh 0 4 2 0 11 5 0 8 4 1 13 4 52
Max Que : ft 0 114 50 0 271 131 0 205 113 33 317 110 317
-
APPR 'IDl'AIS Int
Param:Units SB Approach WE Approach NB Approach EB Approach Total
-
AdjVol: vph 240 667 461 800 2168
----------- -------------- -------------- -------------- -------------- -----
Svc Lvl:IDS C+ C D+ C C
Deg Sat:v/c .43 .78 .82 .77 .75
Avg Del:s/v 24.0 29.4 43.4 33.8 33.4
Tot Del:min 24 82 83 113 302
# Stops :veh 53 152 111 182 498
----------- -------------- -------------- -------------- -------------- -----
Max Que:veh 6 16 12 18 52
Max Que: ft 114 271 205 317 317
-
'l
~
J
'l
,
u
n
i
L.J
J
J
o
J
n
J
'l
LJ
J
NISQUALLY ESTATES
YEIM AVE & SR-507
1998 IDS W/our PROJECT
09/14/95
08:35:51
I
LJ
SIGNAL94/TEAPAC[V1 LL4] - H01 Input Worksheet
Il
J
I
u
Intersection # o -
107 67 67
.0 "12.0 12.0
0 1 1
------------- / \
Area Location Type: NONCBD
Key: VOLUMES -- >
I WIUl'HS
v U\NES
Il
U
\
39 .0 0
.
/ \
456 12.0 1
J
152 12.0 1 /
+
/ 180 12.0 1
North
I
579 12.0 1 --
I
J
\
/ -------------
79 12.0 1 \
'l
U
IDSTI'IME = 3.0 see.
152 96
12.0 12.0
1 1
219 Phasing: SEQUENCE 54
.0 PERMSV N N N N
o ~ YYYY
LEADIAG LD LD
'l
~
Appr Grade % Heavy Veh. Adj.Pkg Bus Pk.Hr.Factor Coni-Ped Actuated Arr.Type
---- ----- -------------- ------- --- -------------- -------- -------- --------
J
% R.r TH LT Loc Nm Nb R.r TH LT peds/hr R.r TH LT R.r TH LT
---- ----- -------------- ------- --- -------------- -------- -------- --------
'l
I
LJ
SB
WE
NB
EB
.0 2.0 2.0 2.0 NO 0
.0 2.0 2.0 2.0 NO 0
.0 2.0 2.0 2.0 NO 0
.0 2.0 2.0 2.0 NO 0
o .90 .90 .90
o .90 . 90 . 90
o .90 .90 .90
o .90 .90 .90
0-
D-
O-
0-
N N N 3 3 3
N N N 3 3 3
N N N 3 3 3
N N N 3 3 3
---- ----- -------------- ------- --- -------------- -------- -------- --------
'l
U
-------------------------------------------------------------------------
Il
I
LJ
Sq 54 I Phase 1 I Phase 2 I Phase 3 I Phase 4 I Phase 5 I Phase 6 I
**/** -------------------------------------------------------------------------
+ +++ ++ ^
+ +++ ++ ++H-
+> <+ + +> <+ + <++H-
v v ^ ****
.
/ \
'I
J
^
++H-
v
North
I
<*
++H- *
v*
* *>
* *
* *
****>
++H-
V
'l
J
-------------------------------------------------------------------------
n
J
G/C= .113
G= 10.2"
Y+R= 4.0"
OFF= .0%
G/C= .000
G= .0"
Y+R= .0"
OFF=15.7%
G/C= .227
G= 20.4"
Y+R= 4.0"
OFF=15.7%
G/C= .131
G= 11.8"
Y+R= 4.0"
0FF=42.9%
G/C= .351
G= 31.6"
Y+R= 4.0"
OFF=60.4%
G/C= .000
G= .0"
Y+R= .0"
OFF= .0%
-------------------------------------------------------------------------
11
U
C= 90 see G= 74.0 see = 82.2% Y=16.0 see = 17.8% Ped= .0 see = .0%
'l
I
LJ
'1
L.J
'1
J
NISQUALLY ESTATES
YEIM AVE & SR-507
1998 IDS W/OTH PROJECl'
09/14/95
08:35:54
'1
I
LJ
J
SIGNAL94/TEAPAC[V1 LL4] - HCM Volurre Adjust:.Irent Worksheet
11
J
Appr Mvt FlCM Lane Group No.of Lane Adj Prop. of
-Mvt Vol PHF Rate Group FlCM Lanes util FlCM LT RI'
vph vph vph vph
SB-RI' 107 .90 119' 0 0 1.00 0 .00 .00
SB-TH 67 .90 74 TH+RI' 193 1 1.00 193 .00 .62
SB-LT 67 .90 74 LT 74 1 1.00 74 1.00 .00
fl
J
------------------------------------------------------------------
n
U
WB-RI' 39 .90 43 0 0 1.00 0 .00 .00
WB-TH 456 .90 507 TH+RI' 550 1 1.00 550 .00 .08
WB-LT 180 .90 200 LT 200 1 1.00 200 1.00 .00
------------------------------------------------------------------
NB-RI' 219 .90 243 0 0 1.00 0 .00 .00
NB-TH 96 .90 107 TH+RI' 350 1 1.00 350 .00 .69
NB-LT 152 .90 169 LT 169 1 1.00 169 1.00 .00
------------------------------------------------------------------
EB-RI' 79 .90 88 RI' 88 1 1.00 88 .00 1.00
EB-TH 579 .90 643 TH 643 1 1.00 643 .00 .00
EB-LT 152 .90 169 LT 169 1 1.00 169 1.00 .00
n
J
n
LJ
n
u
SIGNAL94/TEAPAC[V1 LL4] - HCM Saturation FlCM Adjust:.Irent Worksheet
Ap Lane No Adjust:.Irent Factors Adj
pr Group Ideal of -------------------------------------------------- Sat-
ch Mvrnts Satfl Lns Lane Heavy Bus Ar Right Left Adj flCM
pcphg - Width Vehs Grade Parkg Block Loc Tunl Tunl Fact vphg
'l
I
LJ
n
LJ SB- TH+RI' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .908 1.000 1.00 1690
SB- LT 1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
J
J
J
J
o
J
-------------------------------------------------------------------------------
WB- TH+RI' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .988 1.000 1.00 1841
WB- LT 1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
-------------------------------------------------------------------------------
NB- TH+RI' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .896 1.000 1.00 1669
NB- LT 1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
-------------------------------------------------------------------------------
EB- RI'
EB- TH
EB- LT
1900 1 1.000 .980 1.000 1.000 1.000 1.0 .850 1.000 1.00 1583
1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 1.000 1.00 1863
1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
-------------------------------------------------------------------------------
n
LJ
n
U
n
n
u
NISQUALLY ESTATES 09/14/95
YEIM AVE & SR-507 08:35:57
1998 IDS W/OTJr pROJECl'
SIGNAL94/TEAPAC[V1 L1.4] - HCM Capacity Analysis worksheet
Ap Lane LT Adj Adj Flow Green Lane V/C Crit
pr Group Phase Flow Satfl Ratio Ratio Group Ratio Lane
ch Mvts Type Rate Rate vIs g/C Capac v/c Gl:p
vph vphg vph
SB- TH+Rl' 193 1690 .114 .238 403 .479
SB- LT Prio 74 1770 .042 .124 219 .338 *
------------------------------------------------------------------
WE- TH+Rl' 550 1841 .299 .362 667 .825
WE- LT prio 200 1770 .113 .142 252 .794 *
------------------------------------------------------------------
NB- TH+Rl' 350 1669 .210 .238 398 .879 *
NB- LT Prio 169 1770 .096 .124 219 .772
u
o
J
J
J
11 ------------------------------------------------------------------
u
EB- Rl' 88 1583 .056 .520 823 .107
EB- TH 643 1863 .345 .362 675 .953 *
EB- LT Prio 169 1770 .096 .142 252 .671
------------------------------------------------------------------
Cycle Length, C 90 see Sum(v/s) = .710
Lost TJ..IOO Per Cycle, L 12.0 see Xc = .819
u
11
n
J
SIGNAL94/TEAPAC[V1 L1.4] - HCM Level-of-Service Worksheet
n
I
U
Ap Lane
pr Group
ch Mvts
Vol Green unif Delay
Ratio Ratio Delay Fact
v/c g/C d1 DF
-- see/v
Lane Cal
Group Tenn
Capac m
vph
Incr Lane Lan
Delay Group Gl:p Appr Appr
d2 Delay IDS Delay IDS
see/v see/v - see/v
n
LJ
SB- TH+Rl' .479 .238 22.4 1.00 403 16 .71 23.1 C
SB- LT .338 .124 27.4 1.00 219 16 .36 27.8 D+
------------------------------------------------------------------> 24.4 C
WB- TH+RT .825 .362 19.8 1.00 667 16 5.81 25.6 D+
WB- LT .794 .142 28.4 1.00 252 16 10.74' 39.1 D
.
------------------------------------------------------------------> 29.2 D+
NB- TH+RT .879 .238 25.1 1.00 398 16 13.75 38.9 D
NB- LT .772 .124 29.0 1.00 219 16 10.41 39.4 D
------------------------------------------------------------------> 39.0 D
EB- Rl' .107 .520 8.4 1.00 823 16 .00 8.4 B+
EB- TH .953 .362 21.2 1.00 675 16 17.29 38.5 D
EB- LT .671 .142 27.8 1.00 252 16 4.61 32.4 D+
------------------------------------------------------------------> 34.4 D
Cycle= 90 II
Int Total .781 > 32.7 D
n
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n
I
U
J
J
n
I
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'l
I
LJ
I
u
if
LJ
n
u
NISQUALLY ESTATES
YEIM AVE & SR-507
1998 IDS W/our PROJEcr
09/14/95
08:36:00
n
u
SIGNAL94 /TEAPAC [VI Ll.4] - Evaluation of Intersection Perfonnance
n
,
U
n
Sq 54 I Phase 1 I Phase 2 I Phase 3 I Phase 4 I Phase 5 I
**/** -------------------------------------------------------------
+ +++ ++ ^
+ +,+ + + + ++++
+> <+ + +> <+ + <++++
v v ^ ****
.
/ \
u
'l
U
^
++++ v
n
North
I
<*
++++ *
v*
* *>
* *
* *
****>
++++
v
u
n
G/C= .113
G= 10.2"
Y+R= 4.0"
OFF= .0%
G/C= .000
G= .0"
Y+R= .0"
OFF=15.7%
G/C= .227
G= 20.4"
Y+R= 4.0"
OFF=15.7%
G/C= .131
G= 11.8"
Y+R= 4.0"
0FF=42.9%
G/C= .351
G= 31.6"
Y+R= 4.0"
OFF=60.4%
u
n
LJ
c= 90 see G= 74.0 see = 82.2% Y=16.0 see = 17.8% Ped= .0 see = .0%
n
MVMl' 'IOl'AIS SB Approach WE Approach NB Approach EB Approach Int
Param:Units Rl' TH LT Rl' TH LT Rl' TH LT Rl' TH LT Total
-
-
AdjVol: vph 119 74 74 43 507 200 243 107 169 88 643 169 2436
Wid/Ln:ft/# 0/0 12/1 12/1 0/0 12/1 12/1 0/0 12/1 12/1 12/1 12/1 12/1
g/C Rqd@C:% 0 21 16 0 37 21 0 29 20 17 41 20
g/C Used: % 0 24 12 0 36 14 0 24 12 52 36 14
SV @E: vph 0 403 205 0 667 239 0 397 205 823 675 239 3853
----------- -------------- -------------- -------------- -------------- -----
Svc Lvl:IDS C D+ D+ D D D B+ D D+ D
Deg Sat:v/c .00 .48 .34 .00 .82 .79 .00 .88 .77 .11 .95 .67 .78
Avg Del:s/v .0 31.6 38.0 .0 33.9 54.1 .0 56.9 54.6 11.3 42.9 43.6 42.5
Tot Del:min 0 25 12 0 78 45 0 83 38 4 115 31 431
# Stops:veh 0 41 17 0 125 48 0 84 41 11 157 40 564
----------- -------------- -------------- -------------- -------------- -----
Max Que:veh 0 7 3 0 18 9 0 13 7 2 21 7 87
Max Que: ft 0 186 82 0 444 217 0 337 187 53 519 183 519
-
-
APPR 'IDI'ALS Int
Param:Units SB Approach WE Approach NB Approach EB Approach Total
-
AdjVol: vph 267 750 519 900 2436
----------- -------------- -------------- -------------- -------------- -----
Svc Lvl:IDS C D+ D D D
Deg Sat:v/c .44 .82 .84 .82 .78
Avg Del:s/v 33.4 39.3 56.2 39.9 42.5
Tot Del:min 37 123 121 150 431
# Stops:veh 58 173 125 208 564
----------- -------------- -------------- -------------- -------------- -----
Max Que :veh 10 27 20 30 87
Max Que: ft 186 444 337 519 519
-
u
n
u
n
u
n
LJ
n
LJ
J
J
11
U
n
i
LJ
n
u
n
u
II
II
NISQUALLY ESTA'IES
YEIM AVE & SR-507
1998 LOS WITH PROJECT
09/14/95
08:39:10
u
u
SIGNAL94 lTEAPAC [V1 L1.4] - HCM Input Worksheet
n
U
u
Interseetion # o -
107 75 67
.0 "12.0 12.0
0 1 1
------------- 1 \
Area IDeation Type: :NONCBD
n
Key: VOLUMES -- >
I WIDI'HS
v LANES
u
n
\
39 .0 0
.
1 \
456 12.0 1
II
152 12.0 1 1
+
1 211 12 . 0 1
u
North
I
579 12.0 1 --
II
\
1 -------------
u
108 12.0 1 \
II
LOSTI'IME = 3. 0 see.
168
12.0
1
101
12.0
1
236
.0
o
Phasing: SEQUENCE 54
PERMSV N N N N
OVERLP Y Y Y Y
IEADLAG LD LD
u
n
Appr Grade % Heavy Veh. Adj.Pkg Bus Pk.Hr.Factor Conf.Ped Actuated Arr.Type
u
% Rl' TH LT IDe Nm Nb Rl' TH LT peds/hr Rl' TH LT Rl' TH LT
II
u
SB
WE
NB
EB
.0 2.0 2.0 2.0 NO 0
.0 2.0 2.0 2.0 NO 0
.0 2.0 2.0 2.0 NO 0
.0 2.0 2.0 2.0 NO 0
o .90 .90 .90
o .90 .90 .90
o .90 .90 .90
o .90 .90 .90
0-
0-
0-
0-
N N N 3 3 3
N N N 3 3 3
N N N 3 3 3
N N N 3 3 3
n
LJ
n
,n
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Sq 54 I Phase 1 I Phase 2 I Phase 3 I Phase 4 I Phase 5 I Phase 6 I
**1** -------------------------------------------------------------------------
+ +++ ++ ^
+ +++ ++ ++++
+> <+ + +> <+ + <++++
v v ^ ****
.
1 \
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^
++++ v
North
I
<*
++++ *
v*
* *>
* *
* *
****>
++++
v
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G/C= .095
G= 5.7"
Y+R= 4.0"
OFF= .0%
G/c= .000
G= .0"
Y+R= .0"
OFF=16.1%
G/c= .206
G= 12.3"
Y+R= 4.0"
OFF=16.1%
G/c= .119
G= 7.1"
Y+R= 4.0"
0FF=43.4%
G/C= .314
G= 18.8"
Y+R= 4.0"
OFF=61. 9%
G/c= .000
G= .0"
Y+R= .0"
OFF= .0%
C= 60 see G= 44.0 see = 73.3% Y=16.0 see = 26.7% Ped= .0 see = .0%
n
LJ
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'1
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II
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II
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II
LJ
Il
NISQUALLY ESTATES
YEIM AVE & SR-507
1998 IDS WITH PROJECT
09/14/95
08:39:13
SIGNAL94/TEAPAC[V1 L1.4] - HCM Volurre AdjustIrent Worksheet
Appr Mvt Flav Lane Group No.of Lane Adj Prop. of
-Mvt Vol PHF Rate Group Flav Lanes util Flav LT Rl'
vph vph vph vph
SB-Rl' 107 .90 119.' 0 0 1.00 0 .00 .00
SB-TH 75 .90 83 TH+Rl' 202 1 1.00 202 .00 .59
SB-LT 67 .90 74 LT 74 1 1.00 74 1.00 .00
WB-Rl' 39 .90 43
WB-TH 456 .90 507
WB-LT 211 .90 234
o
TH+Rl' 550
LT 234
1.00
1.00
1.00
o . 00 .00
550 .00 .08
234 1.00 .00
o
1
1
NB-Rl' 236 .90 262
NB-TH 101 .90 112
NB-LT 168 .90 187
o
TH+Rl' 374
LT 187
o
1
1
o .00 .00
374 .00 .70
187 1.00 .00
1.00
1.00
1.00
------------------------------------------------------------------
EB-Rl' 108 .90 120
EB-TH 579 .90 643
EB-LT 152 .90 169
120
643
169
1
1
1
1.00
1.00
1.00
120 .00 1.00
643 .00 .00
169 1.00 .00
Rl'
TH
LT
------------------------------------------------------------------
SIGNAL94/TEAPAC[V1 L1.4] - HCM Saturation Flav Adjusbrent Worksheet
Ap
pr
ch
Lane No Adjusbrent Factors
Group Ideal of --------------------------------------------------
Mvrnts Satfl Lns Lane Heavy Bus Ar Right Left Adj
pcphg - Width Vehs Grade parkg Block I.oc Turn Turn Fact
Adj
Sat-
flav
vphg
LJ SB- TH+Rl' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .912 1.000 1.00 1698
SB- LT 1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
II -------------------------------------------------------------------------------
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WB- TH+Rl' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .988 1.000 1.00 1841
WB- LT 1900 1 1. 000 .980 1. 000 1. 000 1. 000 1. 0 1. 000 .950 1. 00 1770
-------------------------------------------------------------------------------
NB- TH+Rl' 1900 1 1.000 .980 1.000 1.000 1.000 1.0 .895 1.000 1.00 1667
NB- LT 1900 1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
EB- Rl'
EB- TH
EB- LT
1900
1900
1900
1 1.000 .980 1.000 1.000 1.000 1.0 .850 1.000 1.00 1583
1 1.000 .980 1.000 1.000 1.000 1.0 1.000 1.000 1.00 1863
1 1.000 .980 1.000 1.000 1.000 1.0 1.000 .950 1.00 1770
Il
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NISQUALLY ESTATES 09/14/95
YEIM AVE & SR-507 08:39:16
1998 IDS WITH PROJECI'
SIGNAL94/TEAPAC[V1 L1.4] - HCM Capacity Analysis Worksheet
Ap lane LT Adj Adj Flaw Green lane V/C Crit
pr Group Phase Flaw Satfl Ratio Ratio Group Ratio lane
ch Mvts Type Rate Rate vis g/C Capac v/c Grp
vph vphg vph
SB- TH+RI' 202 1698 .119 .222 378 .534
SB- LT Pri. 74 1770 .042 .111 197 .376 *
n
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WB- TH+RI' 550
WB- LT Pri. 234
1841
1770
.299 .331
.132 .136
608 .905
240 .975
*
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NB- TH+RI' 374
NB- LT Pri. 187
1667
1770
.224 .222
.106 .111
371 1. 008
197 .949
*
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EB- RI'
EB- TH
EB- LT
120
643
Pri. 169
1583
1863
1770
.076 .492
.345 .331
.096 .136
779 .154
616 1.044
240 .704
*
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Cycle l:a1gth, C 60 see
wst Tine Per Cycle, L 12.0 see
Sum(v/s) =
Xc =
.744
.929
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SIGNAL94/TEAPAC[V1 L1.4] - HCM I.evel-of-Se:rvice Worksheet
Ap lane
pr Group
ch Mvts
Vol Green unif Delay
Ratio Ratio Delay Fact
v/c g/C d1 DF
-- see/v
lane Cal Incr lane lan
Group Tenn Delay Group Grp Appr Appr
Capac m d2 Delay IDS Delay IDS
vph - see/v see/v - see/v
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SB- TH+RI' .534 .222 15.6 1.00 378 16 1.17 16.8 C+
SB- LT .376 .111 18.8 1.00 197 16 .59 19.4 C+
------------------------------------------------------------------> 17.5 C+
WB- TH+RI' .905 .331 14.6 1.00 608 16 12.18 26.8 D+
WB- LT .975 .136 19.6 1.00 240 16 38.02' 57.6 E
------------------------------------------------------------------> 36.0 D
NB- TH+RI'1.008 .222 17.7 1.00 371 16 38.11 55.8 E
NB- LT .949 .111 20.1 1.00 197 16 36.09 56.2 E
------------------------------------------------------------------> 56.0 E
EB- RI' .154 .492 6.4 1.00 779 16 .01 6.4 B+
EB- TH 1.044 .331 15.3 1.00 616 16 40.38 55.6 E
EB- LT .704 .136 18.8 1.00 240 16 6.08 24.9 C
------------------------------------------------------------------> 43.7 E+
Cycle= 60"
lnt Total .871 > 41.2 E+
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NISQUALLY ESTATES
YEIM AVE & SR-507
1998 IDS WITH PROJEcr
09/14/95
08:39:19
SIGNAL94 /TEAPAC [VI L1.4] - Evaluation of Intersection Perfonrance
n
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-------------------------------------------------------------
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o
Sq 54 I Phase 1 I Phase 2 I Phase 3 I Phase 4 I Phase 5 I
**/** -------------------------------------------------------------
+ +++ ++ ^
+ -+"+ + + + ++++
+> <+ + +> <+ + <++++
v v ^ ****
.
/ \
^
++++ v
n
i
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I ++++ *
v*
* *>
* *
* *
****>
++++
v
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G/C= .095
G= 5.7"
Y+R= 4.0"
OFF= .0%
G/C= .000
G= .0"
Y+R= .0"
OFF=16.1%
G/C= .206
G= 12.3"
Y+R= 4.0"
OFF=16.1%
G/C= .119
G= 7.1"
Y+R= 4.0"
0FF=43 .4%
G/C= .314
G= 18.8"
Y+R= 4.0"
OFF=61.9%
-------------------------------------------------------------
J
C= 60 see G= 44.0 see = 73.3% Y=16.0 see = 26.7% Ped= .0 see = .0%
n
LJ
MVMr 'IUl'AI.S SB Approach WE Approach NB Approach EB Approach Int
Param:Units Rl' TH LT Rl' TH LT Rl' TH LT Rl' TH LT Total
-
-
.AdjVol: vph 119 83 74 43 507 234 262 112 187 120 643 169 2553
Wid/Ln:ft/# 0/0 12/1 12/1 0/0 12/1 12/1 0/0 12/1 12/1 12/1 12/1 12/1
g/C Rqd@C:% 0 16 7 0 34 17 0 27 15 12 38 14
g/C Used: % 0 22 11 0 33 14 0 22 11 49 33 14
SV @E: vph 0 378 191 0 608 237 0 371 191 779 616 237 3608
----------- -------------- -------------- -------------- -------------- -----
Svc Lvl:IDS C+ C+ D+ E E E B+ E C E+
Deg Sat:v/c .00 .53 .38 .00 .90 .98 .00 1. 01 .95 .15 1. 04 .70 .87
Avg Del:s/v .0 23.6 27.5 .0 41.1 58.6 .0 55.6181.4 8.8 54.1 35.0 54.7
Tot DeI:IIilll 0 20 8 0 94 57 0 87 141 4 145 25 581
# Stops:veh 0 45 17 0 131 58 0 93 46 16 160 40 606
----------- -------------- -------------- -------------- -------------- -----
Max Que :veh 0 5 2 0 12 7 0 10 6 2 20 5 69
Max Que: ft 0 132 55 0 311 171 0 262 140 51 519 123 519
-
-
APPR 'IUl'AI.S Int
Param:Units SB Approach WE Approach NB Approach EB Approach Total
-
-
.AdjVol: vph 276 784 561 932 2553
----------- -------------- -------------- -------------~ -------------- -----
Svc Lvl:IDS C+ D E E+ E+
Deg Sat:v/c .49 .93 .99 .87 .87
Avg Del:s/v 24.6 46.3 97.5 44.8 54.7
Tot Del:min 28 151 228 174 581
# Stops :veh 62 189 139 216 606
----------- -------------- -------------- -------------- -------------- -----
Max Que :veh 7 19 16 27 69
Max Que: ft 132 311 262 519 519
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LOCATION:YELM AVE & EDWARDS
NAME LO,TONY
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HOURLY VOLUMES
Grade 0%
N ~ 1
35
V12
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5
V11
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N
N= 1
<
v
25
V10
I>
A__________V6__ 35
<----------V5-- 540 N= 1
v----------V4-- 10
major road Grade 0%
> YELM AVE
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Grade 0%
30 __V1____________A
690 --V2------------>
15 --V3------------v
<I
V7
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minor road
EDWARDS ST
Grade 0 ,
V9
10
STOP xx
YIELD
Date of Counts 1995 EXIST
Time Period PM PEAK HR
Prevailing Speed 25
PHF 0 90
Population 20000
N~ 1
"
VB
2
VOLUME ADJUSTMENTS
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Movement no I 1 I 2 I 3 I 4 1 5 I 6 I 7 I B I 9 I 10 I 11 1 12 I
-------------------------------------------------------------------------------
Volume (vph) I 301 6901 151 101 5401 351 01 21 101 251 51 351
-------------------------------------------------------------------------------
Vol(pcph),Tab 10 11 30lxxxxlxxxxI 10lxxxxlxxxxl 01 21 101 251 51 351
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VOLUMES IN PCPH
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35
V12
5
V11
I 25
V10
< v I>
A__________V6__
<----------V5--
v----------V4-- 10
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30 __V1____________A
--V2------------>
--V3------------v
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V7
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2
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V9
10
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LOCATION YELM AVE & EDWARDS
===============================================================================
<-I V12
'1
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STEP 1 : RT From Minor Street I
===============================================================================
Conflicting Flows, Vc
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Critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Fig10.3)
\ of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
J
NAME LO,TONY
1-> V9
1/2 V3+V2=Vc9
8+ 690= 698 vph
5.5 (secs )
Cp9 = 486 pcph
(V9/Cp9)x100= 2.1\
P9= 99
Cm9=Cp9= 486 pcph
1/2 V6+V5=Vc12
18+ 540= 558 vph
5 5 (secs )
Cp12 = 582 pcph
(V12/Cp12)x100= 6\
P12= .96
Cm12=Cp12= 582 pcph
STEP 2
LT From Major Street I
___acce:=ec_____c__e=============_======:===_========:==ca=====================
__A V1
v-- V4
=e==_=e======c=c=_=============================================================
Conflicting Flows, Vc
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critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Fig10 3)
\ of Cp utilized
Impedance Factor, P (Fig.10 5)
Actual Capacity, Cm
'1
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V3+V2=Vc4
15+ 690= 705 vph
5 (secs )
Cp4 =" 562 pcph
(V4/Cp4)x100= 1 8\
P4= 99
Cm4=Cp4= 562 pcph
V6+V5=Vc1
35+ 540= 575 vph
5 (sees )
Cp1 = 650 pcph
(V1/Cp1)x100= 4.6\
P1= 97
Cm1=Cp1= 650 pcph
STEP 3 : TH From Minor Street I
ace==aceec_ccccc===========================:================e==================
v Vll
n
V8
===============================================================================
u
Conflicting Flows, Vc
n
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Critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Fig10.3)
\ of Cp utilized
Impedance Factor, P (Fig.10 5)
Actual Capacity, Cm
Ii
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5V3+V2+V1+V6+V5+V4=Vc8
8+ 690+ 30+ 35+
540+ 10= 1313 vph
6 (secs )
Cp8 = 172 pc ph
(V8/Cp8)x100= 1 2\
P8= .99
Cm8=Cp8xP1xP4
165= 172x 97x 99pcph
5V6+VS+V4+V3+V2+V1=Vc11
18+ 540+ 10+ 15+
690+ 30= 1303 vph
6 (secs )
Cpll = 174 pcph
(V11/Cp11)x100= 2 9\
Pll= 98
Cm11=Cp11xP1xP4
167= 174x 97x.99pcph
STEP 4
LT From Minor Street I
~~~=========~===============================================e==================
\-> V10
<-\ V7
==============a=======~===================================c====================
'1
LJ
conflicting Flows, Vc
critical Gap, Tc (Tab.10.2)
Potential Capacity,Cp(Fig10 3)
Actual Capacity, Cm
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Vc8(step3)+V11+V12=Vc7
1313+ 5+ 35= 1353vph
6 5 (secs )
Cp7 = 134 pcph
Cm7=Cp7xP1xP4xP11xP12
134x.97x 99x 98x.96
= 121 pcph
Vc11 (step3)+V8+V9=Vc10
1303+ 2+ 10= 1315vph
6 5 (secs )
Cp10 = 142 pcph
Cm10=Cp10xP4xP1xP8xP9
142x 99x 97x.99x 99
= 134 pcph
if
aeeme::::=:::=::::::::==:======:=:=::===========:=======c===e==================
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LOCATION YELM AVE & EDWARDS
NAME LO,TONY
II
MOVEMENT
SHARED LANE CAPACITY
APPROACH MOVEMENTS 7,8,9
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
L.J
V(PCPH)
1
LJ
7
8
9
o
2
10
121
165
486
367
367
367
121
163
476
355
355
355
D
D
A
B
B
B
'1
I
LJ
MOVEMENT
V(PCPH)
APPROACH MOVEMENTS 10,11,12
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
'1
I
LJ
10 25 134 235 109 170 D D
11 5 167 235 162 170 D D
12 35 582 ' 235 547 170 A D
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
n
i
LJ
1
4
30
10
650
562
620
552
A
A
n
L.J COMMENTS
II
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L.J
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II
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'1
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'l
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'1
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LOCATION:YELM AVE & EDWARDS
NAME LO,TONY
-------------------------------------------------------------------------------
n HOURLY VOLUMES Grade 0\
LJ N = 1
39
V12
Il 6
LJ Vll
I 28
c====================: VI0
N= 1 < v I>
Il Grade 0\
U 34 --Vl------------ A
776 --V2------------>
17 --V3------------v <I
rr ccc==e================ V7
J 0
.. V8
N= 1 2
N
A__________V6__ 39
<----------V5-- 607 N= 1
v----------V4-- 11
major road Grade 0\
> YELM AVE
Il
minor road
EDWARDS ST
Grade 0 \
V9
11
STOP xx
YIELD
Date of Counts 1998 W/OUT
Time Period PM PEAK HR
Prevailing Speed:25
PHF 0 90
Population 20000
LJ
======:========================================================================
n
LJ
VOLUME ADJUSTMENTS
-------------------------------------------------------------------------------
Movement no. 1 I 2 I 3 I 4 I 5 I 6 I 7 I 8 I 9 I 10 I 11 I 12 I
-------------------------------------------------------------------------------
Volume (vph) 341 7761 171 111 6071 391 01 21 111 281 61 391
-------------------------------------------------------------------------------
Vol(pcph),Tab 10 11 341xxxxlxxxxl lllxxxxlxxxxl 01 21 III 281 61 391
rr
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===cc======cc=c================================================================
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VOLUMES IN PCPH
39
V12
rr
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6
Vll
I
<
v
28
VI0
I>
A__________V6__
<----------V5--
v----------V4-- 11
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34 __Vl____________A
--V2------------>
--V3------------v
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V7
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mac===m__caDa_=e==a===
==c===================
1'1
V8
2
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V9
11
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11
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LOCATION YELM AVE & EDWARDS
NAME LO,TONY
11
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STEP 1
RT From Minor Street I
=a====a=c======~================================================s==============
<-/ V12
/-> V9
==:cc=e========================:======================c===================:====
Conflicting Flows, Vc
n
critical Gap, Tc (Tab.l0 2)
Potential Capacity,Cp(Figl0 3)
% of Cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
u
11
LJ
1/2 V3+V2sVc9
9+ 776s 7B5 vph
5.5 (secs.)
Cp9 s 434 pcph
(V9/Cp9)xl00= 2 5%
P9= .99
Cm9=Cp9= 434 pcph
1/2 V6+V5sVc12
20+ 607= 627 vph
5 5 (secs )
Cp12 = 532 pcph
(V12/Cp12)xl00= 7.3%
P12= 96
Cm12=Cp12= 532 pcph
STEP 2
LT From Major Street I
c==cae============:============================================================
--' Vl
v-- V4
====ce============:============:=:=================================:===========
conflicting Flows, Vc
'l
J
critical Gap, Tc (Tab.10 2)
Potential Capacity,Cp(Fig10.3)
% of Cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
'l
LJ
V3+V2=Vc4
17+ 776= 793 vph
5 (secs )
Cp4 = '509 pcph
(V4/Cp4)x100= 2 2%
P4s 99
Cm4=Cp4= 509 pcph
V6+V5=Vc1
39+ 607= 646 vph
5 (secs )
Cp1 = 600 pcph
(Vl/Cpl)xl00= 5 7%
Pl= 97
Cml=Cpl= 600 pcph
STEP 3 : TH From Minor Street I
a==_=.====~__=_=_=========_=========_=================c====e=========c==c=_e===
v Vll
VB
Conflicting Flows, Vc
11 ===============================~======================================~========
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n
LJ
critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Figl0 3)
% of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
n
5V3+V2+Vl+V6+V5+V4=Vc8
9+ 776+ 34+ 39+
607+ 11= 1476 vph
6 (secs )
Cp8 = 140 pcph
(VB/CpB)xl00s 1 4%
PBs 99
Cm8=CpBxP1xP4
134= 140x 97x.99pcph
5V6+V5+V4+V3+V2+VlsVcll
20+ 607+ 11+ 17+
776+ 34= 1465 vph
6 (secs )
Cpll = 142 pcph
(V1l/Cpll)x100~ 4.2%
Pll= 97
Crn11=Cp11xP1xP4
136= 142x 97x.99pcph
STEP 4 : LT From Minor Street I
LJ ==~c=c==sa========================S============S===============================
\-> VI0
<-\ V7
===~=~================================================================:========
J
Conflicting Flows, Vc
critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(FiglO.3)
Actual capacity, Crn
11
U
Vc8(step3)+V11+V12=Vc7
1476+ 6+ 39~ 1521vph
6 5 (secs )
Cp7 = 107 pcph
Cm7=Cp7xP1xP4xP1lxP12
107x.97x 99x 97x 96
96 pcph
Vcll (step3)+V8+V9=Vcl0
1465+ 2+ 11= 147Bvph
6 5 (secs )
Cpl0 s 113 pcph
Cm10~Cp10xP4xP1xPBxP9
113x 99x 97x.99x 99
~ 106 pcph
n
c===_======================================================c=c=================
LJ
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L.J
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LJ
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LOCATION,YELM AVE & EDWARDS
NAME LO,TONY
'l
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L.J
SHARED
APPROACH
LANE CAPACITY
MOVEMENTS 7,8,9
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
n
LJ
aa====~============================~==C============~==========================
7
8
9
o
2
11
96
134
434
323
323
323
96
132
423
310
310
310
E
D
A
B
B
B
n
U
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
10,11,12
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
APPROACH MOVEMENTS
c=ca===ee====c========================================c===c===================
'I
LJ
10 28 106 191 78 118 E D
11 6 136 191 130 118 D D
12 39 532 '191 493 118 A D
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
II
U
amca===ea=c==ce=========================================c=e===================
1
4
34
11
600
509
566
498
A
A
'I
LJ COMMENTS
n
LJ
'I
LJ
'l
LJ
n
u
n
u
n
u
n
U
Ii
U
n
u
'I
u
n
LJ
n
u
n
LJ
LOCATION YELM AVE " EDWARDS
I
LJ
HOURLY VOLUMES
-------------------------------------------------------------------------------
NAME LO,TONY
n
LJ
N= 1
n
Grade 0\
u
34 --V1------------^
803 --V2------------>
17 --V3------------v
;'1
aa=====a========a====~
u
n
LJ
Grade 0\
N = 1
39
V12
6
V11
I
30
V10
I>
N
==================~===
^----------V6-- 40
<----------V5-- 621 N= 1
v----------V4-- 11
major road Grade 0\
> YELM AVE
STOP xx
YIELD
Date of Counts 1998 W/PROJ
V9 Time Period PM PEAK HR
11 Prevailing Speed 25
PHP 0 90
population 20000
'1
J
VOLUME ADJUSTMENTS
=am_m===a===~==.=====aa=====_==c===============================================
<
v
Movement no
1 I
-------------------------------------------------------------------------------
5 I
6 I
9 I 10 I 11 I 12 I
111 301
111 301
n
Volume (vph)
341 8031
u
Vol{pcph),Tab 10 11
341xxxxlxxxxl
===============================================================================
n
LJ
VOLUMES IN PCPH
'1
J
======================
n
34 --V1------------^
--V2------------>
--V3------------v
LJ
----------------------
----------------------
n
u
II
LJ
11
LJ
'1
J
n
LJ
n
U
n
LJ
II
u
N= 1
<I
V7
o
., V8
2
7 I
01
01
391
401
61
61
minor road
EDWARDS ST
Grade 0 ,
2 I
3 I
4 I
391
171
111 6211
^----------V6--
<----------V5--
v----------V4-- 11
>
----------------------
----------------------
V8
2
V9
11
11lxxxxlxxxxl
39
V12
6
V11
I 30
V10
< v I>
<I
V7
o
n
LJ
LOCATION YELM AVE & EDWARDS
=cacc==========================================================================
<-I V12
'l
Ll
STEP 1 : RT From Minor Street I
===============================================================================
Conflicting Flows, Vc
n
u
critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Fig10 3)
, of Cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
n
NAME LO,TONY
/-> V9
1/2 V3+V2=Vc9
9+ B03= B12 vph
5.5 (secs )
Cp9 = 419 pcph
(V9/Cp9)x100= 2 6'
P9= 9B
Cm9=Cp9= 419 pcph
1/2 V6+V5=Vc12
20+ 621= 641 vph
5 5 (secs )
Cp12 = 523 pcph
(V12/Cp12)xlOO= 7.5'
P12= 96
Cm12=Cp12= 523 pcph
U STEP 2
LT From Major Street I
=c=cc==========================================================================
__A VI
v-- V4
==ccc=e========================================================================
n
LJ
Conflicting Flows, Vc
n
u
Critical Gap, Tc (Tab.10 2)
Potential Capacity,Cp(Fig10 3)
, of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
V3+V2=Vc4
17+ B03= B20 vph
5 (secs )
Cp4 = '493 pcph
(V4/Cp4)x100= 2.2'
P4= 99
Cm4=Cp4= 493 pcph
V6+V5=Vc1
40+ 621= 661 vph
5 (secs )
Cp1 = 590 pcph
(V1/Cp1)x100= 5.B'
P1= 97
Cm1=Cp1= 590 pcph
'1
LJ
STEP 3 : TH From Minor Street I
===============================================================================
v Vll
VB
cccacce========================================================================
Conflicting Flows, Vc
n
l.J
critical Gap, Tc (Tab.10 2)
Potential Capacity,Cp(Fig10 3)
, of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
n
LJ
.5V3+V2+V1+V6+V5+V4=VcB
9+ B03+ 34+ 40+
621+ 11= 151B vph
6 (secs )
CpB = 131 pcph
(VB/CpB)x100= 1.5'
PB= 99
CmB=Cp8xP1xP4
126= 131x 97x 99pcph
5V6+V5+V4+V3+V2+V1=Vc11
20+ 621+ 11+ 17+
B03+ 34= 1506 vph
6 (secs )
Cpll = 134 pcph
(V11/Cp11)x100= 4.5'
Pll= 97
Cmll=CpllxP1xP4
129= 134x 97x 99pcph
STEP 4 : LT From Minor Street I
_Baa_aa__a_caa_=__======___===__=====================================e=========
\-> V10
'l
,
L.J
<-\ V7
===============================================================================
Conflicting Flows, Vc
n
LJ
critical Gap, Tc (Tab.10.2)
Potential Capacity,Cp(Fig10.3)
Actual Capacity, Cm
n
VcB(step3)+V11+V12=Vc7
151B+ 6+ 39= 1563vph
6 5 (secs )
Cp7 = 101 pcph
Cm7=Cp7xP1xP4xP11xP12
101x.97x 99x.97x 96
90 pcph
Vc11 (step3)+VB+V9=Vc10
1506+ 2+ 11= 1519vph
6 5 (secs )
Cp10 = 107 pcph
Cm10=Cp10xP4xP1xPBxP9
107x.99x.97x 99x 9B
= 100 pcph
c==============================================================================
LJ
n
LJ
n
U
n
u
n
u
n
LJ
n
u
n
LJ
Ii
LJ
LOCATION:YELM AVE & EDWARDS
NAME LO,TONY
'I
L.J
MOVEMENT
SHARED LANE CAPACITY
APPROACH MOVEMENTS 7,8,9
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
V(PCPH)
'l mecc=:===:======:=:============:==================:===========================
u
7
8
9
o
2
11
90
126
419
309
309
309
90
124
408
296
296
296
E
D
A
C
C
C
n
L.J
MOVEMENT
V(PCPH)
APPROACH MOVEMENTS 10,11,12
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
I
u
cec==cecccccccc=c===_===================================c======c======c=======
10 30 100 178 70 103 E D
11 6 129 178 123 103 D D
12 39 523 '178 484 103 A D
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
'1
L.J
__~__a=m_==__=_========================================e=a==e=_===============
1
4
34
11
590
493
556
482
A
A
n
I
U COMMENTS
11
u
n
LJ
f'l
tJ
n
LJ
n
LJ
n
LJ
n
u
'1
J
n
LJ
n
U
n
LJ
n
LJ
n
u
LOCATION YELM AVE & SOLBERG ST
-------------------------------------------------------------------------------
NAME LO,TONY
'l
LJ
HOURLY VOLUMES
n
u
n
N= 2
Grade 0'
LJ
5 --Vl------------^
706 --V2------------>
31 --V3------------v
"1
L.J
~==c==================
'l
U
Grade 0'
3
V12
2
Vll
I
<
v
N = 1
9
VI0
I>
N
^----------V6-- 10
<----------V5-- 543 N= 2
v----------V4-- 22
major road Grade 0'
> YELM AVE
STOP xx
YIELD
Date of Counts 1995 EXIST
V9 Time Period PM PEAK HR
20 Prevailing Speed:25
PHF 0 90
Population 20000
VOLUME ADJUSTMENTS
Da___________aa____aaD_a___~_=__==__________~__===__a=_a_aD_=_C__:__=________=_
n
I
I
U
N= 1
<I
V7
20
.. VB
1
n
Volume (vph)
51 7061
111213141516171
-------------------------------------------------------------------------------
I
31
31
Movement no.
u
Vol(pcph),Tab 10 11
51xxxxlxxxxl
____D_____D____a_a_______=_________=____===_==_===_==_=e=======c==cc_==========
201
n VOLUMES IN PCPH
u
'1
U
n
5 --Vl------------^
--V2------------>
--V3------------v
u
I)
u
'l
u
n
u
~
U
n
LJ
n
u
n
LJ
n
L.J
minor road
SOLBERG ST
Grade 0 ,
311
221 5431
101
201
221xxxxlxxxxl
3
V12
2
Vll
I 9
VI0
< v I>
<I
V7
20
91
91
21
21
^----------V6--
<----------VS--
v----------V4-- 22
>
VB
1
V9
20
'I
U LOCATION YELM AVE & SOLBERG ST
NAME LO,TONY
'1
J
STEP 1 : RT From Minor Street I
a_aD_aa_aaaa____=_=_==_=__===_========:_=__====================================
<-I V12
1-> V9
=====c=========================================================================
Conflicting Flows, Vc 1/2 V3+V2=Vc9 1/2 V6+V5=Vc12
16+ 706= 722 vph 5+ 543= 54B vph
critical Gap, Tc (Tab 10 2) 5 5 (secs ) 5 5 (secs )
Potential Capacity,Cp(Figl0 3) Cp9 472 pcph Cp12 = 5B9 pcph
% of Cp utilized (V9/Cp9)xl00= 4 2% (V12/Cp12)xl00= .5%
Impedance Factor, P (Fig.l0 5) P9= 97 P12= 1
Actual Capacity, Cm Cm9=Cp9= 472 pcph Cm12=Cp12= 5B9 pcph
'1
I
LJ
n
U
STEP 2
LT From Major Street I
======a====c===================================================================
__A Vl
v-- V4
aDa_a_________a__==__=__=_=__===_=============_=_==============================
Conflicting Flows, Vc
'l
J
critical Gap, Tc (Tab.l0 2)
Potential Capacity,Cp(Figl0.3)
% of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
Il
J
V3+V2=Vc4
31+ 706= 737 vph
5 (secs )
Cp4 = '543 pcph
(V4/Cp4)xl00= 4.1%
P4= 9B
Cm4=Cp4= 543 pcph
V6+V5=Vcl
10+ 543= 553 vph
5 (secs )
Cpl = 66B pcph
(VI/Cpl)xl00= .7%
Pl= 1
Cml=Cpl= 66B pcph
STEP 3
TH From Minor Street I
___===_a_aa=aa====_==_=========================================================
v Vll
r'l
J
VB
a_m==me=c=m__=a_====_=___=_====================================c===============
Conflicting Flows, Vc
n
LJ
critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Figl0.3)
% of Cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
il
J
5V3+V2+Vl+V6+V5+V4=VcB
16+ 706+ 5+ 10+
543+ 22= 1302 vph
6 (secs )
CpB = 175 pcph
(VB/CpB)xl00= .6%
PB= 1
CmB=CpBxPlxP4
172= 175x lx 9Bpcph
5V6+V5+V4+V3+V2+Vl=Vcll
5+ 543+ 22+ 31+
706+ 5= 1312 vph
6 (secs )
Cpll = 173 pcph
(VII/Cpll)x100= 1 2%
Pll= 99
Cmll=CpllxPlxP4
170= 173x lx 9Bpcph
STEP 4 : LT From Minor Street I
===============================================================================
\-> VI0
J
Conflicting Flows, Vc
Critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Figl0.3)
Actual Capacity, Cm
n
u
<-\ V7
VcB(step3)+Vll+V12=Vc7
1302+ 2+ 3= 1307vph
6.5 (secs )
Cp7 = 144 pcph
Cm7=Cp7xPlxP4xPllxP12
= 144x lx 9Bx.99x 1
~ 140 pcph
Vcll(step3)+VB+V9=Vcl0
1312+ 1+ 20= 1333vph
6 5 (secs )
Cpl0 ~ 13B pcph
Cml0=Cpl0xP4xPlxPBxP9
13Bx 9Bx lx lx 97
= 131 pcph
===============================================================================
'I
LJ
n
LJ
n
U
11
~
n
u
'l
U
'I
tJ
1
LJ
II
i
LJ
LOCATION YELM AVE & SOLBERG ST
NAME LO,TONY
n
i
U
MOVEMENT
SHARED LANE CAPACITY
APPROACH MOVEMENTS 7,B,9
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
V(PCPH)
'l
,
LJ
=~============================================================================
7
B
9
20
1
20
140
172
472
215
215
215
120
171
452
174
174
174
D
D
A
D
D
D
n
i
U
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
10,11,12
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
APPROACH MOVEMENTS
'l
J
__a___aa__a==~aa=aas========a=========================a=a=ac=c=ca=c===========
10 9 131 164 122 150 D D
11 2 170 164 16B 150 D D
12 3 5B9 -164 5B6 150 A D
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
J
1
4
5
22
66B
543
663
521
A
A
II
LJ COMMENTS:
'l
u
II
J
'l
LJ
II
u
II
U
II
LJ
n
LJ
'l
J
I)
tJ
n
LJ
n
u
II
U
n
u
LOCATION YELM AVE & SOLBERG ST
-------------------------------------------------------------------------------
NAME LO,TONY
n HOURLY VOLUMES Grade 0'
I
U N ~ 1
3
V12
II 2
Vll
U I 10
==================c=== VI0
n Nm 2 < v I>
Grade 0'
U 6 --Vl------------ ~
794 --V2------------>
35 --V3------------v <I
'I ec==c=====cS========== VI
I 22
U .. V8
N~ 1 1
II
I
minor road
SOLBERG ST
Grade 0 ,
u
N
~----------V6-- 11
<----------V5-- 611 N~ 2
v----------V4-- 25
major road Grade 0'
> YELM AVE
V9
22
STOP xx
YIELD
Date of Counts 1998 W/OUT
Time Period PM PEAK HR
Prevailing Speed 25
PHF 0 90
Population 20000
n
J
VOLUME ADJUSTMENTS
===============================c=========~============~========================
-------------------------------------------------------------------------------
Movement no 1 I 2 I 3 I 4 I 5 I 6 I 7 I 8 I 9 I 10 I 11 I 12 I
-------------------------------------------------------------------------------
Volume (vph) 61 7941 351 251 6111 111 22/ 11 221 101 21 31
-------------------------------------------------------------------------------
Vol(pcph),Tab 10.11 6 1 xxxx 1 xxx x 1 251xxxxlXXXXl 221 11 221 101 2\ 31
n
I
U
.==_=~==~c=====================================================================
n VOLUMES IN PCPH
I
U
3
V12
2
Vll
I 10
VI0
< v I>
II
LJ
======================
n
6 --Vl------------~
--V2------------>
--V3------------v
<\
V7
22
LJ
c====e==e=============
fl
LJ
'I
I
LJ
n
U
fl
I
LJ
il
LJ
n
u
n
i
LJ
II
u
~----------V6--
<----------VS--
v----------V4-- 25
>
V8
1
V9
22
n
LJ
LOCATION:YELM AVE & SOLBERG ST
NAME LO,TONY
'l
J
STEP 1
RT From Minor Street I
m===ma==_======================================================================
<-I V12
/-> V9
===============================================================================
Conflicting Flows, Vc 1/2 V3+V2=Vc9 1/2 V6+V5=Vc12
18+ 794= 812 vph 6+ 611= 617 vph
critical Gap, Tc (Tab.10 2) 5 5 (secs ) 5 5 (secs )
Potential capacity,Cp(FiglO 3) Cp9 419 pcph Cp12 = 539 pcph
\ of Cp utilized (V9/Cp9)xlOO= 5 3\ (V12/Cp12 )xlOO= 6\
Impedance Factor, P (Fig.10 5) P9= 97 P12= 1
Actual Capacity, Cm Cm9=Cp9= 419 pcph Cm12=Cp12= 539 pcph
J
J
STEP 2 : LT From Major Street I
ee=========================================================e===================
--^ Vl
v-- V4
=======================================================e==============:========
II
J
Conflicting Flows, Vc
II
LJ
critical Gap, Tc (Tab.10 2)
Potential Capacity,Cp(FiglO 3)
\ of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
V3+V2=Vc4
35+ 794= 829 vph
5 (secs )
Cp4 = '488 pcph
(V4/Cp4)xlOO= 5 1\
P4= 97
Cm4=Cp4= 488 pcph
V6+V5=Vcl
11+ 611= 622 vph
5 (secs )
Cpl = 616 pcph
(Vl/Cpl)xlOO= 1\
Pl= 99
Cml=Cpl= 616 pcph
n
J
STEP 3 : TH From Minor Street I
e==e=====c===cc=========:======================================================
v V11
V8
_ccc=c=e==:=:=::=:====:=::==================================================:==
Conflicting Flows, Vc
II
I
LJ
Critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(FiglO 3)
\ of Cp utilized
Impedance 'Factor, P (Fig.10 5)
Actual Capacity, Cm
'1
L.J
5V3+V2+Vl+V6+V5+V4=Vc8
18+ 794+ 6+ 11+
611+ 25= 1465 vph
6 (secs )
Cp8 = 142 pcph
(V8/Cp8)xlOO= 7\
P8= 1
Cm8=Cp8xPlxP4
136= 142x 99x 97pcph
5V6+V5+V4+V3+V2+Vl=Vcll
6+ 611+ 25+ 35+
794+ 6= 1477 vph
6 (secs )
Cp11 = 140 pcph
(Vll/Cpll)xlOO= 1 4\
P11= 99
Cmll=CpllxPlxP4
134= 140x 99x 97pcph
STEP 4 : LT From Minor street I
===============:==========:====================================================
\-> V10
<-\ V7
______=__mm_=====_=====_===========================_==ace=ac=====c=c==========_
if
I
LJ
Conflicting Flows, Vc
n
Critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(FiglO.3)
Actual Capacity, Cm
u
Vc8(step3)+Vll+V12=Vc7
1465+ 2+ 3= 1470vph
6 5 (secs )
Cp7 = 115 pcph
Cm7=Cp7xPlxP4xPllxP12
115x.99x 97x 99x 1
= 109 pcph
Vcll(step3)+V8+V9=VclO
1477+ 1+ 22= 1500vph
6 5 (secs )
Cp10 = 110 pc ph
CmlO=CplOxP4xPlxP8xP9
= 110x 97x 99x lx 97
= 102 pcph
_=__aaa=ace===cc==a_====================================c======================
n
LJ
n
u
n
L.J
if
I
L.J
n
u
n
u
n
LJ
if
u
'1
tJ
LOCATION YELM AVE & SOLBERG ST
NAME LO,TONY
II
MOVEMENT
SHARED LANE CAPACITY
APPROACH MOVEMENTS 7,8,9
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS LOS
CM CSH
u
V(PCPH)
'l
I
LJ
7
8
9
22
1
22
109
136
419
172
172
172
87
135
397
127
127
127
E
D
B
D
D
D
II
J
MOVEMENT
V(PCPH)
APPROACH MOVEMENTS 10,11,12
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
n
I
LJ
10 10 102 127 92 112 E D
11 2 134 127 132 112 D D
12 3 539 ' 127 536 112 A D
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
'l
U
1
4
6
25
616
488
610
463
A
A
"
J
COMMENTS
n
u
II
LJ
"
u
n
LJ
n
LJ
"
LJ
n
u
"
LJ
n
u
"
LJ
n
LJ
'1
U
il
LJ
LOCATION YELM AVE & SOLBERG ST
n
I
I
LJ
HOURLY VOLUMES
Grade 0%
3
V12
n
2
Vll
I
LJ
n
N= 2
v
<
Grade 0%
LJ
6 --Vl------------"
815 --V2------------>
39 --V3------------v
<I
V7
24
" V8
1
il
L.J
N= 1
il
minor road
SOLBERG ST
Grade 0 %
LJ
NAME LO,TONY
N = 1
N
12
VI0
I>
"----------V6-- 12
<----------V5-- 622 N= 2
v----------V4-- 25
major road Grade 0%
> YELM AVE
STOP xx
YIELD
Date of Counts 1998 W/PROJ
V9 Time Period PM PEAK HR
22 Prevailing Speed 25
PHF 0.90
Population 20000
11
J
VOLUME ADJUSTMENTS
===============================================================================
Movement no. 1 1 1 2 I 3 I 4 I 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1
-------------------------------------------------------------------------------
Volume (vph) I 61 8151 391 251 6221 121 241 11 221 121 21 31
-------------------------------------------------------------------------------
Vol(pcph),Tab 10 11 61xxxxlxxxxl 251xxxxlxxxxl 241 11 221 121 21 31
n
L.J
===e===========================================================================
n VOLUMES IN PCPH
U
3
V12
2
Vll
I 12
VI0
< v I>
n
u
II
6 --Vl------------"
--V2------------>
--V3------------v
<I
V7
24
LJ
n
LJ
II
u
n
LJ
il
u
II
u
II
u
n
L.J
n
I
LJ
"----------V6--
<----------V5--
v----------V4-- 25
>
V8
1
V9
22
n
u
LOCATION YELM AVE & SOLBERG ST
NAME LO,TONY
'1
L.J
STEP 1
RT From Minor Street I
======================================================c==========c====c========
<-I V12
/-> V9
======e=c======cce=============================================================
Conflicting Flows, Vc
n
i
L.J
Critical Gap, Tc (Tab 10.2)
Potential capacity,Cp(Fig10 3)
\ of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
n
U
1/2 V3+V2=Vc9
20+ a15= a35 vph
5.5 (secs )
Cp9 407 pcph
(V9/Cp9)x100= 5 4\
P9= 97
Cm9=Cp9= 407 pcph
1/2 V6+V5=Vc12
6+ 622= 62a vph
5 5 (secs )
Cp12 = 532 pcph
(V12/Cp12)x100= .6\
P12= 1
Cm12=Cp12= 532 pcph
STEP 2
LT From Major Street I
===============================================================================
--^ V1
v-- V4
_0===__===============_================================e===ce=cc===cccce=======
Conflicting Flows, Vc
'1
I
L.J
critical Gap, Tc (Tab.10.2)
Potential Capacity,Cp(Fig10 3)
\ of Cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
'l
L.J
V3+V2=Vc4
39+ a15= a54 vph
5 (secs )
Cp4 = '473 pcph
(V4/Cp4)x100= 5.3\
P4= 97
Cm4=Cp4= 473 pcph
V6+V5=Vc1
12+ 622= 634 vph
5 (secs )
Cp1 = 60a pcph
(V1/Cp1)x100= 1\
P1= 99
Cm1=Cp1= 60a pcph
STEP 3
TH From Minor Street I
cec==cecacC=Cc===e==========-==================================================
v Vll
va
11 _acacc=__ccaccccae_=_=_==================================a====c=====c==========
J
Conflicting Flows, Vc
'1
LJ
critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Fig10 3)
\ of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
n
U
5V3+V2+V1+V6+V5+V4=Vca
20+ a15+ 6+ 12+
622+ 25= 1500 vph
6 (secs )
cpa = 135 pcph
(Va/Cpa)x100= .7\
pa= 1
Cma=CpaxP1xP4
130= 135x 99x.97pcph
.5V6+V5+V4+V3+V2+V1=Vc11
6+ 622+ 25+ 39+
a15+ 6= 1513 vph
6 (secs )
Cpll = 132 pcph
(V11/Cp11)x100= 1 5\
Pll= 99
Cmll=CpllxP1xP4
127= 132x 99x.97pcph
STEP 4
LT From Minor Street I
===============================================================================
\-> V10
<-\ V7
====a===========_====================8=========================================
t1t
Conflicting Flows, Vc
LJ
critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Fig10 3)
Actual Capacity, Cm
11
u
Vca(step3)+V11+V12=Vc7
1500+ 2+ 3= 1505vph
6 5 (secs )
Cp7 = 109 pcph
cm7=Cp7xP1xP4xP11xP12
~ 109x 99x.97x 99x 1
= 104 pcph
Vc11(step3)+Va+V9=Vc10
1513+ 1+ 22= 1536vph
6 5 (secs )
Cp10 = 105 pcph
Cm10=Cp10xP4xP1xpaxP9
= 105x 97x 99x 1x.97
= 9a pcph
LJ
a==e=c=:=======================================================================
n
n
LJ
{l
U
il
u
n
LJ
'l
LJ
n
u
,'1
LJ
II
LJ
LOCATION:YELM AVE & SOLBERG ST
NAME LO,TONY
'l
LJ
MOVEMENT
SHARED LANE CAPACITY
APPROACH MOVEMENTS 7,8,9
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS LOS
CM CSH
V(PCPH)
" ==============================================================================
L.J
7
8
9
24
1
22
104
130
407
161
161
161
80
129
385
114
114
114
E
D
B
o
o
D
II
LJ
MOVEMENT
V(PCPH)
APPROACH MOVEMENTS 10,11,12
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
=====================================~========================================
11
10 12 98 118 86 101 E D
11 2 127 118 125 101 D D
12 3 532 '118 529 101 A D
MAJOR STREET LEFT TURNS 1, 4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
u
11
LJ
==============================================================================
1
4
6
25
608
473
602
448
A
A
'l
U
COMMENTS
II
u
'l
J
'l
I
LJ
II
u
"
U
II
u
n
u
n
LJ
n
u
'l
u
n
u
'l
U
II
L.J
LOCATION SR-507 & MOSMAN ST
n HOURLY VOLUMES Grade 0\
L.J N = 1
37
V12
n 7
J Vll
I 20
a==_=aaaaa=a=====a_~aa V10
N= 1 < v I>
n Grade 0\
U 25 --V1------------ ^
291 --V2------------>
23 --V3------------v <I
II ---------------------- V7
----------------------
I 30
U ,I va
N= 1 10
'I
LJ
minor road
MOSMAN
Grade 0 \
NAME:LO,TONY
N>
^----------V6-- 24
<----------V5-- 279 N= 1
v----------V4-- 27
major road Grade 0\
> SR-507
V9
30
STOP xx
YIELD
Date of Counts 1995 EXIST
Time Period PM PEAK HR
Prevailing Speed 25
PHF 0 90
Population 20000
n VOLUME ADJUSTMENTS
aaa=a=~=a_a==a====a_=======a=a========================ace===ac==aaea===========
L.J
Movement no
-------------------------------------------------------------------------------
\1121314151617\ al
-------------------------------------------------------------------------------
1 251 2911 231 271 2791 241
'1
U
Volume (vph)
Vol(pcph),Tab 10 11
25\xxxxlxxxxl
27lxxxxlxxxxl
a===========ama========================================a===========ea==========
II VOLUMES IN PCPH
LJ
37
V12
7
Vll
I 20
V10
< v I>
n
L.J
n
25 --V1------------^
--V2------------>
--V3------------v
<I
V7
30
L.J
II
LJ
II
L.J
II
LJ
II
LJ
II
L.J
II
LJ
II
LJ
n
LJ
301
301
101
101
201
301
^----------V6--
<----------v5--
v----------V4-- 27
>
va
10
V9
30
II
LJ
LOCATION SR-507 & MOSMAN ST
NAME LO,TONY
1"1
LJ
STEP 1
RT From Minor Street I
~=a=a=a.====c~=a===================B===================================~=======
<-I V12
1-> V9
ceca======c==c=============================================c=====c=============
Conflicting Flows, Vc
n
Critical Gap, Tc (Tab.l0.2)
Potential Capacity,Cp(Figl0.3)
, of Cp utilized
Impedance Factor, P (Fig.l0 5)
Actual Capacity, Cm
u
Ii
1/2 V3+V2~Vc9
12+ 291~ 303 vph
5 5 (secs.)
Cp9 782 pcph
(V9/Cp9)x100= 3.8,
P9= .98
Cm9~Cp9- 782 pc ph
1/2 V6+V5~Vc12
12+ 279= 291 vph
5 5 (secs )
Cp12 = 794 pcph
(V12/CpI2)xI00= 4.7'
P12= 97
Cm12.CpI2~ 794 pcph
u
STEP 2
LT From Major Street I
==========~============~===============================e=======c=c=====c=======
__A VI
v-- V4
aaee=_a=a____c__e_==_=____=====__===_=_=_========_=::====a==e=======e=eD==_===_
Conflicting Flows, Vc
'l
LJ
Critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(FigI0.3)
, of cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
'l
u
V3+V2=Vc4
23+ 291_ 314 vph
5 (secs.)
Cp4 =' '873 pc ph
(V4/Cp4)xl00= 3.1'
P4. .98
Cm4=Cp4= 873 pcph
V6+V5=Vcl
24+ 279= 303 vph
5 (secs )
Cp1 = 882 pcph
(V1/Cp1)x100~ 2 8'
Pl. 98
Cm1=Cp1= 882 pcph
STEP 3
TH From Minor Street I
=a._===a.=====_==================================a===================_========_
v Vll
n
V8
=.--.----=.===-==.-===--===--=_===========a====e=~===~=~==~a===a====~=a=======a
LJ
Conflicting Flows, Vc
1"1
critical Gap, Tc (Tab.10 2)
Potential Capacity,Cp(Fig10 3)
, of Cp utilized
Impedance Factor, P (Fig.10 5)
Actual Capacity, Cm
u
il
LJ
.5V3+V2+V1+V6+V5+V4=Vc8
12+ 291+ 25+ 24+
279+ 27- 658 vph
6 (secs.)
Cp8 - 442 pcph
(V8ICp8)x100= 2.3'
P8= 99
Cm8=Cp8xP1xP4
424= 442x 98x 98pcph
5V6+V5+V4+V3+V2+VI~Vc11
12+ 279+ 27+ 23+
291+ 25~ 657 vph
6 (secs.)
Cpll = 443 pcph
(VII/Cp11)x100= 1 6%
Pll= 99
Cmll=CpllxP1xP4
425= 443x.98x.98pcph
STEP 4
LT From Minor Street I
=~=c=============~======================cc==c=~c==c==cC=====c=====ce:==========
\-> V10
<-\ V7
_~=a.=_====a==D=a===~a=====m========_==========================================
n
Conflicting Flows, Vc
LJ
critical Gap, Tc (Tab.10.2)
Potential Capacity,CP(Fig10 3)
Actual Capacity, Cm
n
u
Vc8(step3)+V11+V12:Vc7
658+ 7+ 37= 702vph
6 5 (secs )
Cp7 = 364 pcph
Cm7=Cp7xP1xP4xP11xP12
- 364x.98x 98x.99x 97
= 336 pcph
Vcll (step3)+V8+V9=Vcl0
657+ 10+ 30= 697vph
6 5 (secs.)
Cp10 = 367 pcph
Cm10=Cp10xP4xP1xP8xP9
- 367x 98x.98x 99x 98
= 342 pcph
-Q====-=======~==============D===============e=========ec=====e==c==c=======_==
n
u
n
LJ
r,
LJ
il
u
n
u
n
u
n
LJ
1"1
L.J
n
LJ
LOCATION SR-507 & MOSMAN ST
NAME LO,TONY
'1
LJ
SHARED
APPROACH
LANE CAPACITY
MOVEMENTS 7,8,9
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
II ccc::c==ccccc=================================================================
u
7
8
9
30
10
30
336
424
782
463
463
463
306
414
752
393
393
393
B
A
A
B
B
B
n
U
MOVEMENT
V(PCPH)
APPROACH MOVEMENTS 10,11,12
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
_________a______=______=____=_____=_____=____===_=__==============___=========
'I
I
LJ
10 20 342 527 322 463 B A
11 7 425 527 418 463 A A
12 37 794 . '527 757 463 A A
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
------==--=---====================================~================-========--
11
LJ
1
4
25
27
882
873
857
846
A
A
'1
LJ COMMENTS:
n
u
n
LJ
'I
LJ
'1
U
n
u
n
u
n
u
n
u
n
i
U
'1
u
n
U
n
U
n
LJ
n
LJ
~~~::~~-~~=~~~_:-~~~~-~:----------------~~~~::~~:_------------t----------
HOURLY VOLUMES Grade 0\
N = 1
42
V12
I) 8
Vll
LJ I 22
---------------------- VI0
N= 1 < v I>
[l Grade 0\
28 --Vl------------ A
U 327 --V2------------>
26 --V3------------v <I
n ====================== V7
I 34
LJ .. V8
N= 1 11
n
minor road
MOSMAN
Grade 0 ,
LJ
N>
A__________V6__ 27
<----------V5-- 314 N= 1
v----------V4-- 30
major road Grade 0\
> SR-507
V9
34
STOP xx
YIELD
Date of Counts 1998 W/OUT
Time Period PM PEAK HR
Prevailing Speed 25
PHF:O 90
Population 20000
I)
VOLUME ADJUSTMENTS
ceaeDaacacc=aacaeD.==:::=:=========:==:=:====:==========:==:==:=======:========
Movement no 1 I 2 I 3 I 4 I 5 1 6 I 7 I 8 I 9 I 10 I 11 I 12 I
-------------------------------------------------------------------------------
Volume (vph) 281 3271 261 30 I 3141 271 341 111 341 221 81 421
-------------------------------------------------------------------------------
Vol(pcph),Tab.l0.ll 281xxxXlxxxxl 30lxxxxlxxxxl 341 111 341 221 81 421
u
n
u
_======_====_...c_=============================================================
n VOLUMES IN PCPH
42
LJ V12
8
V11
n I 22
L.J c====:===c============ VI0
< v I>
I)
28 __Vl____________A
--V2------------>
-~V3------------v
<I
V7
34
LJ
n
!
L.J
n
L.J
I'
u
n
i
u
I)
U
I)
LJ
'I
L.J
I)
i
LJ
A__________V6__
<----------V5--
v----------V4-- 30
>
V8
11
V9
34
II
,
,
L.J
LOCATION SR-507 & MOSMAN ST
n
L.J
STEP 1 : RT From Minor Street I
NAME LO,TONY
1-> V9
<-I V12
Conflicting Flows, Vc 1/2 V3+V2=Vc9 1/2 V6+V5=Vc12
13+ 327= 340 vph 14+ 314= 328 vph
critical Gap, Tc (Tab.l0 2) 5.5 (secs ) 5 5 (secs.)
Potential Capacity,Cp(Figl0 3) Cp9 751 pcph Cp12 = 761 pcph
\ of Cp utilized (V9/Cp9)xl00= 4 5\ (VI2/CpI2)xl00= 5 5\
Impedance Factor, P (Fig.l0 5) P9= 97 P12= .97
Actual Capacity, Cm Cm9=Cp9= 751 pcph Cm12=CpI2= 761 pcph
n
!
LJ
n
I
LJ
STEP 2
LT From Major Street I
===c==c===ccc========c=========================================================
--^ Vl
v-- V4
==__====__======c============_=================================================
Conflicting Flows, Vc
II
I
L.J
critical Gap, Tc (Tab.l0 2)
Potential Capacity,Cp(Figl0 3)
\ of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
n
I
LJ
V3+V2=Vc4
26+ 327= 353 vph
5 (secs )
Cp4 =' t 840 pcph
(V4/Cp4)xl00= 3 6\
P4= 98
Crn4=Cp4= 840 pcph
V6+V5=Vcl
27+ 314= 341 vph
5 (secs )
Cpl = 850 pcph
(Vl/Cpl)xl00= 3 3\
Pl= .98
Cml=Cpl= 850 pcph
STEP 3
TH From Minor Street I
____ceca_cec_ce___c_________======______=====_=__==_=========a==ec_ce_==c======
v Vll
II
V8
__cec==ceDC_===_==_==___=__=_=__==_====__=====_===========c====================
LJ
Conflicting Flows, Vc
II
critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Figl0.3)
\ of Cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
L.J
n
I
Ll
5V3+V2+Vl+V6+V5+V4=Vc8
13+ 327+ 28+ 27+
314+ 30= 739 vph
6 (secs )
Cp8 = 394 pcph
(V8/Cp8)xl00= 2.8\
P8= 98
Cm8=Cp8xPlxP4
378= 394x 98x.98pcph
.5V6+V5+V4+V3+V2+Vl=Vcll
14+ 314+ 30+ 26+
327+ 28= 739 vph
6 (secs )
Cpll = 394 pcph
(Vl1/Cpll)xl00= 2\
Pll= 99
Cml1=CpllxPlxP4
378= 394x 98x 98pcph
STEP 4
LT From Minor street I
-=======-======-=======-=====-=====--==================--======================
\-> VI0
<-\ V7
-==============================================================================
II
Conflicting Flows, Vc
u
critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Figl0 3)
Actual capacity, Cm
J
Vc8(step3)+Vll+V12=Vc7
739+ 8+ 42= 789vph
6 5 (secs.)
Cp7 a 316 pc ph
Cm7=Cp7xPlxP4xPllxPl2
= 316x 98x.98x 99x.97
= 291 pcph
Vcll (step3)+V8+V9=Vcl0
739+ 11+ 34= 784vph
6 5 (secs )
Cpl0 = 319 pcph
Cml0=Cpl0xP4xPlxP8xP9
= 319x 98x 98x 98x.97
= 291 pcph
II
======aa_======================================================================
L.J
II
u
II
u
'I
LJ
'I
,
L.J
II
L.J
II
~
'I
,
~
n
LJ
LOCATION SR-507 & MOSMAN ST
NAME:LO,TONY
'l
I
U
SHARED
APPROACH
LANE CAPACITY
MOVEMENTS 7,9,9
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
'l
I
LJ
7
9
9
34
11
34
291
379
751
413
413
413
257
367
717
334
334
334
C
B
A
B
B
B
'l
LJ
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
10,11,12
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
APPROACH MOVEMENTS
cama====c=============================================cc=c=c===:=:============
n
10 22 291 474 269 402 C A
11 9 379 474 370 402 B A
12 42 761 . '474 719 402 A A
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
_c===c=c==================================_===============ce==========_=======
LJ
il
I '
, I
U
1
4
29
30
850
840
822
810
A
A
n
J
COMMENTS
n
u
n
u
n
LJ
'l
LJ
n
LJ
'l
LJ
n
I
U
n
u
n
I
U
If
U
'l
I
LJ
'1
J
I
LJ
LOCATION:SR-507 & MOSMAN ST
II
HOURLY VOLUMES
Grade 0%
u
46
V12
"
8
Vll
I
u
r
u
Na 1
v
<
Grade 0%
"
30 --Vl------------"
365 --V2------------>
27 --V3------------v <I
====================== V7
36
LJ
"
Na 1
II
LJ
minor road
MOSMAN
Grade 0 %
"
!
~
VOLUME ADJUSTMENTS
NAME LO,TONY
N = 1
N>
22
VI0
I>
"----------V6-- 27
<----------v5-- 380 N= 1
v----------V4-- 30
major road Grade 0%
> SR-507
V8
11
STOP xx
YIELD
Date of CountB 1998 W/PROJ
V9 Time Period PM PEAK HR
34 Prevailing Speed 25
PHF 0.90
Population 20000
Movement no. 1 1 2 I 3 I 4 1 5 I 6 1 7 1 8 1 9 I 10 I 11 1 12 I
-------------------------------------------------------------------------------
Volume (vph) 301 3651 271 301 3801 271 361 111 34\ 221 81 461
-------------------------------------------------------------------------------
Vol(pcph),Tab.l0.ll 30lxxxxlxxxxl 30lxxxxlxxxxl 361 111 341 221 81 461
"
i
LJ
'1
I
LJ
VOLUMES IN PCPH
"
46
V12
8
Vll
I 22
VI0
< v I>
LJ
"
30 --Vl------------"
--V2------------>
--V3------------v
<I
V7
36
,
LJ
"
u
'I
,
L.J
II
LJ
"
u
'1
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'1
I
L.J
If
I
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"
I
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"----------V6--
<----------V5--
v----------V4-- 30
>
I
V8
11
V9
34
I)
I
U
LOCATION.SR-S07 & MOSMAN ST
I)
J
STEP 1 : RT From Minor Street I
Conflicting Flows, Vc
'l
I
LJ
critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(FiglO.3)
\ of cp utilized
Impedance Factor, P (Fig.lO.5)
Actual Capacity, Cm
I)
I
U
STEP 2
LT From Major street I
Conflicting Flows, Vc
n
i
L.J
critical Gap, Tc (Tab.lO 2)
Potential Capacity,Cp(FiglO.3)
\ of Cp utilized
Impedance Factor, P (Fig.10 5)
Actual Capacity, Cm
'l
U
STEP 3
TH From Minor Street I
1l a_a_aa__aaam~_a_m_aaaa=.a_.==....==a==========.======.======.====~=============
v VIl
~
Conflicting Flows, Vc
I)
I
U
Critical Gap, Tc (Tab.10 2)
Potential capacity,Cp(Fig10 3)
\ of Cp utilized
Impedance Factor, P (Fig.lO 5)
Actual Capacity, Cm
n
NAME LO,TONY
1-> V9
1/2 V3+V2=Vc9
14+ 365= 379 vph
5 5 (sees.)
Cp9 = 7lB pcph
(V9/Cp9)x100= 4 7\
P9= .97
Cm9.Cp9- 71B pcph
v-- V4
V3+V2.Vc4
27+ 365= 392 vph
5 (sees.)
Cp4 =' 'B07 pcph
(V4/Cp4)xlOO= 3.7\
P4= 9B
Cm4=Cp4= B07 pcph
VB
.5V3+V2+Vl+V6+V5+V4=VcB
14+ 365+ 30+ 27+
3BO+ 30= B46 vph
6 (sees )
CpB = 339 pc ph
(VB/CpB)x100= 3.2\
PB= .9B
CmB=CpBxP1xP4
326= 339x.9Bx.9Bpcph
<-I V12
1/2 V6+V5.Vc12
14+ 3BO= 394 vph
5.5 (sees )
Cp12 = 705 pcph
(V12/Cp12)x100= 6 5\
P12= 96
Cm12=Cp12= 705 pcph
__A VI
V6+V5=Vcl
27+ 3BO= 407 vph
5 (sees )
Cp1 = 794 pcph
(VI/Cpl)xlOO= 3.B\
Pl= 9B
Cm1=Cpl= 794 peph
5V6+V5+V4+V3+V2+Vl=Vc11
14+ 3BO+ 30+ 27+
365+ 30= B46 vph
6 (sees.)
CpIl = 339 pcph
(VII/Cp11)xlOO= 2.4\
PIl. 99
Cm11=Cp11xP1xP4
326= 339x 9Bx.9Bpcph
STEP 4
LT From Minor Street I
LJ =====cecccccc=c=:::==:::::===:=================================================
\-> V10
'l
I
U
Conflicting Flows, Vc
critical Gap, Tc (Tab.lO 2)
Potential Capacity,Cp(Fig10 3)
Actual Capacity, Cm
'l
U
I)
L.J
I)
u
I)
u
n
u
n
I
U
n
!
LJ
I)
J
')
I
LJ
<-\ V7
VcB(step3)+Vll+V12=Vc7
B46+ B+ 46= 900vph
6 5 (sees )
Cp7 = 270 pcph
Cm7=Cp7xPlxP4xPl1xP12
= 270x 9Bx.9Bx 99x.96
= 246 pcph
VeIl (step3)+VB+V9=VclO
B46+ 11+ 34= B91vph
6 5 (sees.)
Cp10 = 274 pcph
Cml0=Cpl0xP4xPlxPBxP9
= 274x 9Bx 9Bx.9Bx.97
= 250 pcph
n
u
LOCATION SR-507 & MOSMAN ST
NAME LO,TONY
n
SHARED
APPROACH
LANE CAPACITY
MOVEMENTS 7, 8 , 9
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
,
LJ
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
'l
I
U
7
8
9
36
11
34
246
326
718
356
356
356
210
315
684
275
275
275
C
B
A
C
C
C
'l
u
MOVEMENT
V(PCPH)
APPROACH MOVEMENTS 10,11,12
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
n
I
U
10 22 250 427 228 351 C B
11 8 326 427 318 351 B B
12 46 705 . '427 659 351 A B
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
~a~==_a~a=__==__m_==a=_=======================c=======cec==cec=c=cc==e========
n
LJ
1
4
30
30
794
807
764
777
A
A
n
LJ
COMMENTS
'l
u
'l
I
U
'l
u
'l
U
n
u
'l
U
n
LJ
II
U
n
LJ
'l
I
LJ
n
,
LJ
n
I
I
LJ
!J
LJ
Il
i
LJ
LOCATION YELM AVE & 103RD AVE SE
jNAME LO,TONY
HOURLY VOLUMES
VOLUMES IN PCPH
N>
Major street YELM AVE
I)
I
U
N= 1
Grade
650---V2--->
10---V3---v
================= <I
0\
<---V5--- 720
v---V4--- 75
N= 2
---V2--->
---V3---v
<---V5---
v---V4---
75
I)
I
LJ
Date of Counts
1995 EXIST
Time Period:
PM PEAK HR
Approach Speed
25
PHF: 0.90
Population 20000
I>
V9
I
X STOP
YIELD
<I I>
V7 V9
I I
10 60
I)
I
LJ
V7
I
10 60
Minor Street
103RD AVE
N= 1
Grade
0\
..
:l VOLUME ADJUSTMENTS
u
Movement no.
I
-------------------------------------------------------------------------------
650 I
2
3
4
5
7
9
I)
I
U
Volume (vph)
I
60 I
-------------------------------------------------------------------------------
60 I
10
75
720
10
Vol(pcph) ,see Table 10.1lxxxxxxxxlxxxxxxxxl
75
Ixxxxxxxxl
10
STEP 1
RT From Minor Street
/-> V9
'l
LJ
Conflicting Flows, Vc
critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
1/2 V3+V2= 5 + 650 = 655 vph(Vc9)
Tc= 5 5 secs (Tab 10 2)
Cp9= 514 pcph (Fig 10 3)
Cm9=Cp9= 514 pcph
'I
LJ
STEP 2 : LT From Major Street
v-- V4
'I
L.J
Conflicting Flows, Vc
critical Gap, Tc
Potential Capacity, Cp
\ of Cp utilized and Impedance Factor
Actual Capacity, Cm (Fig 10 5)
V3+V2= 10 + 650 = 660 vph(Vc4)
Tc= 5 secs (Tab 10 2)
Cp4= 591 pcph (Fig 10 3)
(V4/Cp4)xl00= 12.7\ P4= 92
Cm4=Cp4= 591 peph
1
u
STEP 3 : LT From Minor Street
<-\ V7
Conflicting Flows, Vc
'1
LJ
critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
1/2 V3+V2+V5+V4=
5 + 650 + 720 + 75 = 1450 vph(Vc7)
Te= 6 5 secs (Tab 10 2)
Cp7= 118 peph (Fig 10 3)
Cm7=Cp7xP4= 118 x 92 = 109 pcph
I)
LJ
SHARED LANE CAPACITY
SH = (V7+V9)/((V7/Cm7)+(V9/Cm9)) if lane is shared
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
~ 7 10 109 336 99 266 E C
LJ 9 60 514 336 454 266 A C
4 75 591 516 A
n
LJ
Il
LJ
n
tJ
!J
LJ
I)
I
U
fl
LJ
LOCATION YELM AVE & 103RD AVE SE
INAME:LO,TONY
'l
I
LJ
HOURLY VOLUMES
VOLUMES IN PCPH
N>
Major street YELM AVE
fl
!
LJ
N= 1
Grade
0\
731---V2--->
II---V3---v
================= <I
<---V5--- 810
v---V4--- 84
N= 2
---V2--->
---V3---v
<---V5---
v---V4---
84
'1
J
Date of Counts
1998 W/OUT
Time Period
PM PEAK HR
Approach Speed
25
PHF 0 90
Population 20000
I>
V9
I
X STOP
YIELD
<I I>
V7 V9
I I
11 67
1
u
V7
I
11 67
Minor street:
103RD AVE
N= 1
Grade
0\
.,
I)
I
LJ
VOLUME ADJUSTMENTS
II
Movement no 2 3 4 5 7 9 I
-------------------------------------------------------------------------------
Volume (vph) 731 11 84 810 11 67 I
-------------------------------------------------------------------------------
Vol(pcph),see Table 10.llxxxxxxxxlxxxxxxxxl 84 Ixxxxxxxxl 11 67 I
LJ
STEP 1
RT From Minor street
/-> V9
'1
i
LJ
Conflicting Flows, Vc
Critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
1/2 V3+V2= 6 + 731 = 737 vph(Vc9)
Tc= 5 5 secs (Tab 10 2)
Cp9= 463 pcph (Fig 10 3)
Cm9=Cp9= 463 pcph
II
i
LJ
STEP 2
LT From Major Street
v-- V4
Il
LJ
Conflicting Flows, Vc
critical Gap, Tc
Potential Capacity, Cp
\ of Cp utilized and Impedance Factor
Actual Capacity, Cm (Fig 10.5)
V3+V2= 11 + 731 = 742 vph(Vc4)
Tc= 5 secs (Tab.l0 2)
Cp4= 540 pcph (Fig 10 3)
(V4/Cp4)xl00= 15 6\ P4= 9
Cm4=Cp4= 540 pcph
fl
i
LJ
STEP 3
LT From Minor Street
<-\ V7
Conflicting Flows, Vc
1/2 V3+V2+V5+V4=
6 + 731 + 810 + 84 = 1631 vph(Vc7)
Tc= 6 5 secs (Tab 10.2)
Cp7= 92 pcph (Fig 10.3)
Cm7=Cp7xP4= 92 x .9 = 83 pcph
'1
I
LJ
Critical Gap, Tc
Potential capacity, Cp
Actual Capacity, Cm
ama===============c============================================================
fl
SHARED LANE CAPACITY
SH = (V7+V9)/((V7/Cm7)+(V9/Cm9)) if lane is shared
u
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
===============e==============================================================
II 7 11 83 281 72 203 E C
9 67 463 281 396 203 B C
LJ 4 84 540 456 A
II
L.J
fl
U
II
I
L.J
fl
LJ
'1
U
II
LJ
LOCATION YELM AVE & 103RD AVE SE
INAME LO,TONY
I!
U
HOURLY VOLUMES
VOLUMES IN PCPH
N>
Major street:YELM AVE
II
J
N= 1
Grade
0\
762---V2--->
11---V3---v
================= <I
<---V5--- 827
v---V4--- 84
N= 2
---V2--->
---V3---v
<---V5---
v---V4---
84
n
, I
LJ
Date of Counts
1998 W/pROJ
Time Period
PM PEAK HR
Approach Speed
25
PHF 0.90
Population 20000
I>
V9
I
X STOP
YIELD
<I I>
V7 V9
I I
11 67
'I
I
LJ
V7
I
11 67
Minor Street
103RD AVE
N= 1
Grade
0\
..
I!
VOLUME ADJUSTMENTS
,
U
Movement no. 2 3 4 5 7 9 I
-------------------------------------------------------------------------------
Volume (vph) 762 11 84 827 11 67 I
-------------------------------------------------------------------------------
Vol(pcph),see Table 10.1lxxXXXXXXlxxxxxxxXI 84 Ixxxxxxxxl 11 67 I
'l
LJ
STEP 1 : RT From Minor Street
1-> V9
'l
J
Conflicting Flows, Vc
Critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
1/2 V3+V2= 6 + 762 = 768 vph(Vc9)
Tc= 5 5 secs (Tab.10.2)
Cp9= 444 pcph (Fig 10.3)
Cm9=Cp9= 444 pcph
I
LJ
STEP 2
LT From Major Street
v-- V4
'l
I
U
Conflicting Flows, Vc
critical Gap, Tc
Potential Capacity, Cp
\ of Cp utilized and Impedance Factor
Actual Capacity, Cm (Fig 10 5)
V3+V2= 11 + 762 = 773 vph(Vc4)
Tc= 5 secs (Tab.10.2)
Cp4= 521 pcph (Fig 10 3)
(V4/Cp4)x100= 16.1\ P4= 89
Cm4=Cp4= 521 pcph
I!
I
U
==c=c==========================================================================
STEP 3
LT From Minor Street
<-\ V7
Conflicting Flows, Vc
'1
L.J
critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
1/2 V3+V2+V5+V4=
6 + 762 + 827 + 84 = 1679 vph(Vc7)
Tc= 6 5 secs (Tab 10 2)
Cp7= 87 pcph (Fig.10 3)
Cm7=Cp7xP4= 87 x 89 = 77 pcph
a=a=c=====================~==============================c=====================
n
SHARED LANE CAPACITY
SH = (V7+v9)/((V7/cm7)+(V9/cm9)) if lane is shared
LJ
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
==============================================================================
II 7 11 77 266 66 188 E D
U 9 67 444 266 377 188 B D
4 84 521 437 A
'l
LJ
n
U
'l
LJ
'1
LJ
n
, I
L.J
n
LJ
LOCATION:SR-507 & BALD HILL RD
'1 HOURLY VOLUMES Grade 0%
N = 1
LJ B
V12
'I 7
V11
U I 11
ccccc================= V10
N= 2 < v I>
n Grade 0%
4 --V1------------ ^
U 471 --V2------------>
245 --V3------------v <I
'I c===================== V7
150
LJ ,t VB
N= 1 13
n
minor road
BALD HILL
Grade 0 %
u
NAME LO,TONY
N
^----------V6-- 11
<----------V5-- 5B9 N= 2
v----------V4-- 60
major road Grade 0%
> SR-507
V9
26
STOP xx
YIELD
Date of Counts 1995 EXIST
Time Period PM PEAK HR
Prevailing Speed 40
PHF 0 90
Population 20000
mcc===a====_=a=================================================================
n VOLUME ADJUSTMENTS
Movement no 1 1 2 I 31 4 1 5 I 6 I 7 1 B I 9 I 10 I 11 I 12 I
-------------------------------------------------------------------------------
Volume (vph) 41 4711 2451 601 5B91 111 1501 131 261 111 71 BI
-------------------------------------------------------------------------------
Vol(pcph),Tab 1011 41xxxxlxxxxl 611xxxxlxxxxl1511 131 261 111 71 BI
LJ
'I
U
'I
LJ
VOLUMES IN PCPH
a=a=e=e==ec==ccc=====_=========================================================
'I
B
V12
7
V11
I 11
V10
< v I>
LJ
n
4 --V1------------^
--V2------------>
--V3------------v
<I
V7
151
LJ
'I
LJ
'I
LJ
n
I
U
n
LJ
n
LJ
'1
I
U
n
LJ
n
J
^----------V6--
<----------V5--
v----------V4-- 61
>
VB
13
V9
26
II
LJ
LOCATION SR-507 & BALD HILL RD
'l
STEP 1 : RT From Minor Street I
u
Conflicting Flows, Vc
'l
critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Figl0.3)
, of Cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
LJ
'l
u
STEP 2
LT From Major Street I
Conflicting Flows, Vc
'l
u
critical Gap, Tc (Tab.l0.2)
Potential Capacity,Cp(Figl0 3)
, of Cp utilized
Impedance Factor, P (Fig.l0 5)
Actual Capacity, Cm
II
u
STEP 3
TH From Minor Street I
'l
LJ
Conflicting Flows, Vc
'l
critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Figl0.3)
, of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
LJ
'l
LJ
STEP 4 : LT From Minor Street I
'l
Conflicting Flows, Vc
LJ
'l
Critical Gap, Tc (Tab.l0 2)
Potential Capacity,Cp(Figl0 3)
Actual Capacity, Cm
LJ
NAME LO,TONY
1-> V9
1/2 V3+V2=Vc9
123+ 471= 594 vph
5 5 (secs )
Cp9 = 555 pcph
(V9/cp9)xl00= 4.7'
P9= .97
Cm9=Cp9= 555 pcph
v-- V4
V3+V2=Vc4
245+ 471= 716 vph
5 (secs.)
Cp4 =' '555 pcph
(V4/Cp4)xl00= 11'
P4= 93
Cm4=Cp4= 555 pcph
V8
5V3+V2+Vl+V6+V5+V4=Vc8
123+ 471+ 4+ 11+
589+ 60= 1258 vph
6 (secs.)
Cp8 = 188 pcph
(V8/Cp8)xl00= 6.9'
P8= 96
Cm8=Cp8xPlxP4
175= 188x lx.93pcph
<-\ V7
Vc8(step3)+Vl1+V12=Vc7
1258+ 7+ 8- 1273vph
6 5 (secs.)
Cp7 = 152 pcph
Cm7=Cp7xPlxP4xPllxP12
- 152x lx.93x 97x.99
= 136 pcph
<-I V12
1/2 V6+V5=Vc12
6+ 589= 595 vph
5.5 (secs )
Cp12 = 554 pcph
(V12/Cp12)xl00= 1.4'
P12= 99
Cm12=Cp12= 554 pcph
__A Vl
V6+V5=Vcl
11+ 589= 600 vph
5 (secs )
Cpl = 630 pcph
(VI/Cpl)xl00= 6'
Pl= 1
Cml=Cpl= 630 pcph
v Vll
5V6+V5+V4+V3+V2+Vl=Vcl1
6+ 589+ 60+ 245+
471+ 4= 1375 vph
6 (secs )
Cpll = 160 pcph
(VII/Cpll)x100= 4.4'
Pll= 97
Cmll=CpllxPlxP4
149= 160x lx.93pcph
\-> VI0
Vcl1 (step3)+V8+V9=Vcl0
1375+ 13+ 26= 1414vph
6 5 (secs )
Cpl0 = 123 pcph
Cml0=Cpl0xP4xPlxP8xP9
= 123x.93x lx 96x 97
= 107 pcph
ac=============================================================================
II
L.J
'l
L.J
II
LJ
r-,
L.J
r-,
LJ
'l
LJ
'l
LJ
'l
LJ
""
LJ
LOCATION SR-507 & BALD HILL RD
NAME LO,TONY
""
L.J
SHARED
APPROACH
LANE CAPACITY
MOVEMENTS 7,8,9
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
II aCEC==========================================================================
LJ
7
8
9
151
13
26
136
175
555
154
154
154
-15
162
529
-36
-36
-36
F
D
A
F
F
F
""
L.J
MOVEMENT
V(PCPH)
APPROACH MOVEMENTS 10,11,12
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
"
LJ
10 11 107 158 96 132 E D
11 7 149 158 142 132 D D
12 8 554 . '158 546 132 A D
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
n
l.J
==============================================================================
1
4
4
61
630
555
626
494
A
A
""
L.J COMMENTS:
"
L.J
n
L.J
"
L.J
""
u
"
L.J
"
L.J
n
L.J
""
u
"
L.J
""
L.J
""
L.J
""
L.J
~
LJ
LOCATION:SR-507 & BALD HILL RD
~
HOURLY VOLUMES
Grade 0\
LJ
9
V12
~
8
V11
I 12
VI0
v I>
<I
V7
169
,I V8
15
LJ
n
N= 2 <
Grade 0\
LJ
5 --Vl------------^
530 --V2------------>
298 --V3------------v
n
u
Nm 1
n
minor road
BALD HILL
Grade 0 \
LJ
N = 1
NAME LO,TONY
N
^----------V6-- 13
<----------V5-- 663 N= 2
v----------V4-- 73
major road Grade 0\
> SR-507
V9
29
STOP xx
YIELD
Date of Counts 1998 W/OUT
Time Period PM PEAK HR
Prevailing speed 40
PHF 0 90
Population 20000
VOLUME ADJUSTMENTS
aemma_=eaa_aca=e========:=========:========:============c======================
'l
LJ
n
Volume (vph)
51 5301 2981
731 6631
I 1 I 2 I 3 I 4 I 5 I 6 1 7 1 8 I 9 I 10 I 11 I 12 I
-------------------------------------------------------------------------------
I
81
81
Movement no.
u
Vol(pcph),Tab.l0 11
51xxxxlxxxxl
ccca=e=========================================================================
131 1691
151
291
121
741xxxxlxxxxl 1701
n VOLUMES IN PCPH
i
L.J
9
V12
8
V11
I 12
VI0
< v I>
n
LJ
n
5 --Vl------------^
--V2------------>
--V3------------v
<I >
V7 c==c==e===============
170
LJ
~
LJ
~
LJ
~
LJ
~
LJ
n
LJ
n
L.J
n
LJ
~
LJ
151
291
121
^----------V6--
<----------V5--
v----------V4-- 74
V8
15
V9
29
II
L.J
LOCATION SR-507 & BALD HILL RD
II
STEP 1
RT From Minor Street I
u
Conflicting Flows, Vc
II
Critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Fig10 3)
, of Cp utilized
Impedance Factor, P (Fig.10 5)
Actual Capacity, Cm
LJ
II
LJ
STEP 2
LT From Major Street I
Conflicting Flows, Vc
"1
L.J
critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Fig10 3)
\ of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
11
LJ
STEP 3 : TH From Minor Street I
NAME LO,TONY
1-> V9
1/2 V3+V2=Vc9
149+ 530= 679 vph
5.5 (sees)
Cp9 = 499 pcph
(V9/Cp9)x100= 5.8\
P9= 97
Cm9=Cp9= 499 pcph
v-- V4
V3+V2=Vc4
298+ 530= 828 vph
5 (sees.)
Cp4 = ''488 pc ph
(V4/Cp4)x100= 15 2\
P4= 9
Cm4=Cp4= 488 pcph
V8
<-I V12
1/2 V6+V5=Vc12
7+ 663= 670 vph
5 5 (sees )
Cp12 = 505 pcph
(V12/Cp12)x100= 1 8\
P12= 99
Cm12=Cp12= 505 pcph
__A V1
V6+V5=Vc1
13+ 663= 676 vph
5 (sees )
Cp1 = 581 pcph
(V1/Cp1)x100= .9\
P1= 99
Cm1=Cp1= 591 pcph
'I aaa=CDDmaa===e=========================================-=====-==============-==
v Vll
Conflicting Flows, Vc
L.J
II
Critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Fig10.3)
\ of Cp utilized
Impedance Factor, P (Fig 10.5)
Actual Capacity, Cm
L1
n
LJ
STEP 4
LT From Minor Street I
n
Conflicting Flows, Vc
L.J
critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Fig10 3)
Actual Capacity, Cm
n
I
L.J
,"1
L.J
II
L.J
II
t
LJ
II
u
II
u
n
u
II
LJ
II
L.J
5V3+V2+V1+V6+V5+V4=Vc9
149+ 530+ 5+ 13+
663+ 73= 1433 vph
6 (sees )
Cp8 = 149 pcph
(V9/Cp8)x100= 10 1\
P8= 94
Cm8=Cp9xP1xP4
132= 148x.99x .9pcph
<-\ V7
Vc8(step3)+V11+V12=Vc7
1433+ 8+ 9= 1450vph
6 5 (sees )
Cp7 = 118 pcph
Cm7=Cp7xP1xP4xP11xP12
= 118x 99x .9x 96x.99
= 100 pcph
5V6+V5+V4+V3+V2+V1=Vc11
7+ 663+ 73+ 299+
530+ 5= 1576 vph
6 (sees )
Cpll = 120 pcph
(V11/Cp11)x100= 6 7\
Pll= 96
Cm11=Cp11xP1xP4
107= 120x 99x .9pcph
\-> V10
VeIl (step3)+V8+V9=Vc10
1576+ 15+ 29= 1620vph
6 5 (sees )
Cp10 = 93 pcph
Cm10=Cp10xP4xP1xP8xP9
93x 9x 99x 94x 97
= 76 pc ph
II
LJ
LOCATION SR-507 & BALD HILL RD
NAME LO,TONY
n
SHARED
APPROACH
LANE CAPACITY
MOVEMENTS 7,8,9
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
LJ
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
I'
==============================================================================
LJ
7
8
9
170
15
29
100
132
499
114
114
114
-70
117
470
-100
-100
-100
F
D
A
F
F
F
I'
u
MOVEMENT
V(PCPH)
APPROACH MOVEMENTS 10,11,12
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
II
acaac=========aa========================================aa====================
10 12 76 116 64 87 E E
11 8 107 116 99 87 E E
12 9 505 '116 496 87 A E
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
LJ
n
LJ
==============================================================================
1
4
5
74
581
488
576
414
A
A
n
LJ COMMENTS:
II
u
n
LJ
n
L.J
n
LJ
II
LJ
n
u
II
,
LJ
n
I
LJ
II
LJ
n
LJ
n
LJ
n
LJ
II
LJ
LOCATION:SR-507 & BALD HILL RO
II HOURLY VOLUMES Grade
0\
U N = 1
9
V12
II 8
Vll
U I 12
_a=a_D~_______=__a____ VI0
N= 2 < v I>
II Grade 0\
5 --Vl------------ ^
U 541 --V2------------>
301 --V3------------v <I
II ---------------------- V7
----------------------
174
LJ " V8
N= 1 15
II
minor road
BALD HILL
Grade 0 \
u
NAME LO,TONY
N
^----------V6-- 13
<----------V5-- 683 N= 2
v----------V4-- 73
major road Grade 0\
> SR-507
V9
29
STOP xx
YIELD
Date of Counts 1998 W/PROJ
Time Period PM PEAK HR
prevailing Speed 40
PHF 0.90
Population 20000
==~=============m=======a==============================ec==c===c==c======:_====
n VOLUME ADJUSTMENTS
u
Movement no.
II
Volume (vph)
51 5411 3011
731 6831
741xxxxlxxxxl 175\
151
151
u
Vol(pcph),Tab.l0 11
51xxxxlxxxxl
n VOLUMES IN PCPH
LJ
9
V12
8
Vll
I 12
VI0
< v I>
II
u
II
5 --Vl------------^
--V2------------>
--V3------------v
<I
V7
175
LJ
II
LJ
II
u
n
LJ
II
LJ
n
LJ
n
LJ
n
LJ
II
LJ
131 1741
8\
81
9\
91
^----------V6--
<----------V5--
v----------V4-- 74
>
V8
15
V9
29
Il
LJ
LOCATION:SR-507 & BALD HILL RD
=a==m=aa==ae=am===~=============a====a==========a==============================
<-I V12
Il
STEP 1 : RT From Minor Street I
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
LJ
Conflicting Flows, Vc
n
critical Gap, Tc (Tab 10.2)
Potential Capacity,Cp(Fig10.3)
\ of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
u
n
NAME LO,TONY
/-> V9
1/2 V3+V2=Vc9
151+ 541= 692 vph
5 5 (sees.)
Cp9 = 490 pcph
(V9/Cp9)x100= 5 9\
P9= .96
Cm9=Cp9= 490 pcph
1/2 V6+V5=Vc12
7+ 683= 690 vph
5.5 (sees.)
Cp12 = 492 pcph
(V12/Cp12)x100= 1 B%
P12= 99
Cm12=Cp12= 492 pcph
u
STEP 2 : LT From Major Street I
a====ca=a=aa===================================================================
--^ V1
v-- V4
cac=a===cca===c==aa=====_===_======================_===========================
Conflicting Flows, Vc
"1
LJ
critical Gap, Tc (Tab 10 2)
Potential Capacity,Cp(Fig10 3)
\ of Cp utilized
Impedance Factor, P (Fig.10 5)
Actual capacity, Cm
Il
LJ
V3+V2=Vc4
301+ 541= 842 vph
5 (sees )
Cp4 = '480 pcph
(V4/Cp4)xl00= 15.4\
P4= 9
Cm4=Cp4= 480 pcph
V6+V5=Vc1
13+ 683= 696 vph
5 (sees )
Cpl = 568 pcph
(Vl/Cpl)xl00= 9\
Pl= 99
Cml=Cpl= 568 pcph
STEP 3
TH From Minor Street I
============================================================c==================
v Vll
V8
1\ a=Daa______aa____=~=_=___=a___m=_======e========_==c_~===a=cec===c=c__c____=_=_
Conflicting Flows, Vc
u
Il
critical Gap, Tc (Tab.l0 2)
Potential Capacity,Cp(Fig10 3)
\ of Cp utilized
Impedance Factor, P (Fig 10 5)
Actual Capacity, Cm
u
"1
u
.5V3+V2+V1+V6+V5+V4=Vc8
151+ 541+ 5+ 13+
683+ 73= 1466 vph
6 (sees )
Cp8 = 142 pcph
(V8/Cp8)x100= 10.6\
P8= 94
Cm8=Cp8xPlxP4
127= 142x.99x .9pcph
5V6+V5+V4+V3+V2+V1=Vc11
7+ 683+ 73+ 301+
541+ 5= 1610 vph
6 (sees.)
Cp11 = 114 pcph
(Vll/Cp11)xl00= 7\
Pll= 96
Cm11=Cp11xP1xP4
102= 114x.99x 9pcph
STEP 4 : LT From Minor Street I
cec======cc====================================================================
\-> V10
<-\ V7
==__===_==~===_======_=============================c==========c====cc=======c==
Il
Conflicting Flows, Vc
u
critical Gap, Tc (Tab 10.2)
Potential capacity,Cp(Figl0 3)
Actual Capacity, Cm
Il
u
Vc8(step3)+V11+V12=Vc7
1466+ 8+ 9= 1483vph
6 5 (sees )
Cp7 a 113 pcph
Cm7=Cp7xPlxP4xPllxP12
= 113x 99x 9x 96x 99
96 pcph
yell (step3)+V8+V9=Vc10
1610+ 15+ 29= 1654vph
6 5 (sees )
Cpl0 = 90 pcph
Cml0=Cpl0xP4xPlxPBxP9
= 90x 9x.99x 94x 96
= 72 pc ph
=_ce=a=a===cc==a====_========================================c==========_======
,..,
u
Il
u
Il
u
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u
,..,
u
,..,
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u
"1
LJ
Il
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LOCATION SR-507 & BALD HILL RD
NAME LO,TONY
Il
MOVEMENT
SHARED LANE CAPACITY
APPROACH MOVEMENTS 7,8,9
CR
CM(PCPH) CSH(PCPH) (CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
LJ
V(PCPH)
Il
==============================================================================
LJ
7
8
9
175
15
29
96
127
490
109
109
109
-79
112
461
-110
-110
-110
F
D
A
F
F
F
n
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
10,11,12
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
APPROACH MOVEMENTS
LJ
Il
_______a_~_aa______a_=______a_______________________=_------------------------
10 12 72 110 60 81 E E
11 8 102 110 94 81 E E
12 9 492 '110 483 81 A E
MAJOR STREET LEFT TURNS 1,4
MOVEMENT V(PCPH) CM(PCPH) CR(CM-V) LOS
LJ
n
LJ
=__~_=m=======_=_=_=_=_=___================_================-=========--==-==-
1
4
5
74
568
480
563
406
A
A
Il
LJ COMMENTS
Il
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Il
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Il
u
Il
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Il
u
Il
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u
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n
L.J
n
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,..,
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LOCATION SR-507 & S. ENTRANCE
INAME:LO,TONY
,..,
-------------------------------------------------------------------------------
LJ
HOURLY VOLUMES
VOLUMES IN PCPH
<N
Major street SR-507
,..,
a==aa=Daa~a==~=a=====a====aaa==========
=====================================
LJ
N= 1
Grade
0\
385---V2--->
20---V3---v
a=aamaamaa=a=a__m <I
<---V5--- 382
v---V4--- 1
N- 1
---V2--->
---V3---v
<---vs---
v---V4--- 1
V9
I
X STOP
YIELD
<I I>
V7 V9
I I
11 0
LJ
Date of Counts
1998 W/PROJ
Time Period
PM PEAK HR
Approach Speed:
55
PHF 0.90
Population 20000
I>
,..,
LJ
V7
I
11 0
Minor Street:
ENTRANCE
N= 1
Grade
0\
,..,
S
,I
================-==============================================================
n
VOLUME ADJUSTMENTS
-------------------------------------------------------------------------------
u
Movement no.
I
11 I
-------------------------------------------------------------------------------
11 I
2
3
4
5
7
9
'I
Volume (vph)
385
20
1
o
u
Vol(pcph),see Table 10 1 I xxxxxxxxl xxxxxxxxl
1
Ixxxxxxxxl
o
===============================================================================
STEP 1
RT From Minor Street
/-> V9
n
=__==__==DD_D~=____=_=aaaaa___=__======__=D=====~========c=_=_=_==c==_=_e===_=_
LJ
Conflicting Flows, Vc
critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
1/2 V3+V2= 10 + 385 = 395 vph{Vc9)
Tc= 6 5 secs (Tab 10 2)
Cp9= 564 pcph (Fig 10.3)
Cm9=Cp9= 564 pcph
"
========_==_==============c==========~=====================c======_=_==========
LJ
STEP 2
LT From Major Street
v-- V4
===a=======C===================================C===============================
LJ
Conflicting Flows, Vc
critical Gap, Tc
Potential Capacity, Cp
\ of Cp utilized and Impedance Factor
Actual Capacity, Cm (Fig 10.5)
V3+V2= 20 + 385 = 405 vph(Vc4)
Tc= 5 5 secs (Tab 10 2)
Cp4a 696 pcph (Fig.l0 3)
(V4/Cp4)xl00a .1\ p4a 1
Crn4=Cp4= 696 pcph
,..,
n
cecacc=cc==__=_==e==============:===============:_=-================c==========
L.J
STEP 3 I LT From Minor street
<-\ V7
======-========================================================================
Conflicting Flows, Vc
1/2 V3+V2+V5+V4=
10 + 385 + 382 + 1 = 778 vph(Vc7)
Tc= 8 secs (Tab 10 2)
Cp7= 215 pcph (Fig.l0 3)
Cm7=Cp7xP4a 215 x 1 a 215 pcph
'I
LJ
Critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
==a=~==a=_=============================================_=====================c=
,..,
SHARED LANE CAPACITY
SH = (V7+V9)/{{V7/Cm7)+(V9/cm9)) if lane is shared
MOVEMENT
V(PCPH)
CM{PCPH)
CSH{PCPH)
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
LJ
c======c=ccac=e==_===========_==_======__======_==============================
,.., 7 11 215 215 204 204 C C
9 0 564 215 564 204 A C
LJ 4 1 696 695 A
"
LJ
n
LJ
'I
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n
LJ
n
U
'I
u
'1
LOCATION SR-507 & N. ENTRANCE
INANE LO,TONY
-------------------------------------------------------------------------------
LJ
HOURLY VOLUMES
VOLUMES IN PCPH
<N
Major street SR-507
'I
===============~=======================
=====================================
L.J
N= 1
Grade
0\
403---V2--->
59---V3---v
================= <I
<---V5--- 390
v---V4--- 3
N= 1
---V2--->
---V3---v
<---V5---
v---V4--- 3
LJ
V9
I
X STOP
YIELD
<I I>
V7 V9
I I
32 2
II
Date of Counts:
1998 W/PROJ
Time Period
I>
n
PM PEAK HR
Approach Speed:
55
PHF: 0 90
population 20000
V7
I
32 2
Minor Street
ENTRANCE
N= 1
Grade
0\
S
LJ
,I
.____a__aaa________aa____________aaa______aaa__~_____==----=-===-=-=------~----
II
VOLUME ADJUSTMENTS
u
-------------------------------------------------------------------------------
Movement no
I
-------------------------------------------------------------------------------
I
I
32 I
-------------------------------------------------------------------------------
32 I
2
3
4
5
7
9
II
Volume (vph)
403
59
3
390
2
L..J
Vol(pcph),see Table 10 11xxxxxxxxlxxxxxxxxl
3
Ixxxxxxxxl
2
ceca_cece=c_===ee__=_========:==============:===================c=c============
STEP 1 I RT From Minor Street
/-> V9
,.,
___=_=____ca=aaa__======_aaa_==a=========================a==e=e==_==ce_=====__=
LJ
Conflicting Flows, Vc
Critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
1/2 V3+V2= 30 + 403 = 433 vph(Vc9)
Tc= 6.5 secs (Tab 10 2)
Cp9= 537 pcph (Fig 10 3)
Cm9=Cp9= 537 pcph
II
____a_a____c_________________=_=______===__=_=_==___=_ceca_=e=e=c__===========_
LJ
STEP 2
LT From Major Street
v-- V4
========e===========================================================c==========
'1
Conflicting Flows, Vc
critical Gap, Tc
Potential capacity, Cp
\ of Cp utilized and Impedance Factor
Actual Capacity, Cm (Fig.10 5)
V3+V2= 59 + 403 = 462 vph(Vc4)
Tc= 5.5 secs (Tab.10 2)
Cp4= 654 pcph (Fig.10.3)
(V4/Cp4)x100= 5\ P4= 1
Cm4=Cp4= 654 pcph
LJ
~ ___c__ace=_____==e____====_=_==_=_====__==_============ec=_=a==========_======_
STEP 3 : LT From Minor Street
<-\ V7
~ _ceca=a_a_a_==______=_____===__=__=_=========_====_=====c=_=e=c=c=c=c__========
,.,
Critical Gap, Tc
Potential Capacity, Cp
Actual Capacity, Cm
1/2 V3+V2+V5+V4=
30 + 403 + 390 + 3 = 826 vph(Vc7)
Tc= 8 secs (Tab 10.2)
Cp7= 196 pcph (Fig 10.3)
Cm7=Cp7xP4= 196 x 1 = 196 pcph
Conflicting Flows, Vc
LJ
c==a=c==e=cc===e===============================================================
'I
SHARED LANE CAPACITY
5H = (V7+V9)/((V7/Cm7)+(V9/cm9)) if lane is shared
MOVEMENT
V(PCPH)
CM(PCPH)
CSH(PCPH)
CR
(CM-V)
CR
(CSH-V)
LOS
CM
LOS
CSH
LJ
=~=====aa==================================================e==================
'I 7 32 196 204 164 170 D D
9 2 537 204 535 170 A D
LJ 4 3 654 651 A
,.,
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II
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,.,
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II
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'I
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"I
"I
Left Turn Warrant Analysis
Taken from AASHTO Policy on Geometric Design of Highways and Streets, 1990
Advancmg Volume
Opposmg 5% 10% 20% 30%
Volume Left Turns Left Turns Left Turns Left Turns
., 40 mph Operating Speed
800 330 240 180 160
600 410 305 225 200
400 510 380 275 245
200 640 470 350 305
100 720 515 390 340
50 mph Operating Speed
800 280 210 165 135
600 350 260 195 170
400 430 320 240 210
200 550 400 300 270
100 615 445 335 295
60 mph Operating Speed
800 230 170 135 115
600 290 210 160 140
400 365 270 200 175
200 450 330 250 215
100 505 370 275 240
LJ
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Location: SR-507 & North Entrance
PM Peak Hour Trip Generation: 83 Entering
45 Exiting
Use 50 mph design speed
% left turns = 3/393 = 0.0076 or 0.76%
Opposing Volume = 462 vph (2000 w/proj traffic)
Advancing Volume = 393 vph (2000 w/proj traffic)
Allowable Advancing Volume = 415 vph (approx.)
u
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415> 393
No left turn Docket required
"I
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Left Turn Warrant Analysis
Taken from MSIITO Policy on Geometnc DesIgn ofI-lighways and Streets, 1990
AdvancIng Volume
OppOSIng 5% 10% 20% 30%
Volume Left Turns Left Turns Left Turns Left Turns
,. 40 mph Operating Speed
800 330 240 180 160
600 410 305 225 200
400 510 380 275 245
200 640 470 350 305
100 720 515 390 340
50 mph Operating Speed
800 280 210 165 135
600 350 260 195 170
400 430 320 240 210
200 550 400 300 270
100 615 445 335 295
60 mph Operating Speed
800 230 170 135 115
600 290 210 160 140
400 365 270 200 175
200 450 330 250 215
100 505 370 275 240
11
u
11
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11
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'1
"
Location: SR-507 & South Entrance
PM Peak Hour Trip Generation: 83 Entering
45 Exiting
Use 50 mph design speed
% left turns = 1/383 = 0.0026 or 0.26%
Opposing Volume = 405 vph (2000 w/proj traffic)
Advancing Volume = 383 vph (2000 w/proj traffic)
Allowable Advancing Volume = 440 vph (approx.)
u
LJ
"
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440 > 383
No left turn Docket required
"
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LEFT TURN STORAGE GUIDELINES
Unsignalized intersection
Two - lane highway
25
15
s-
iD
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III
U
0-
:1
fA
KEY:
20
~
8e-low curve,
storage not
needed for
capacity.
sg
Above curve,
storage
recommended.
10
'0 )
a.e. REal 0 )
5
o
300
400
500
600
700
800
900
1000
1100
1200
Total DHY-
.DHV is total volume from both directions. Current year volume may be used on 3-R Projects.
..Speeds are posted speed limits.
'I
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Interssctlons
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If
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-
RIGHT-TURN LANE GUIDELINES
'I
>
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g 100
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40
,I
Right-Turn Lone
(Figure 910-11bl
Recommended
S 4b2..1 5~
NO I~"'TH E
w
~
::J 80
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>
l2 60
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I--
I--
I
c..:>
Right-Turn Pocket or
Taper (Figure
Recommended
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.....
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Ct:
Ct:
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20
105'12.0
-::Ot.lTt+ e-rrR. A Ce
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Radius Only Recommended
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<!
W
a..
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o
100 200 300 400 500 600 700
PEAK HOUR APPROACH VOLUME (DDHV)*
'I
LJ
'I
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'I
*For two-lane highways, use the peak hour approach volume (through + right turn).
For multilane, high speed (posted at 70 km/h or above) highways, use the right lane peak hour
approach volume (through + right turn).
For 3-R projccts, use current year volumes.
Note. When all three of the following conditions are met, the DDHV is reduced by 20 VPH.
1 Posted speed 70 km/h or under.
2. Tight-turn volume greater than 40 VPH.
3. Total approach volume less lhan 300 VPH.
u
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Right-Turn lane Guidelines
Figure 91(HO
(Metric)
u
n
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Psgs910-24
Design Manusl
March 1994
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....
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CD
;!
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~
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I Edge of through-lone
~~~~~~~~--=w"A#,$'ltL~~!~~\\~1BR"
For right turn corner design see Figure 910-9 ---/ ~~
."~':::"
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15 m ~IN
Deceleration lone length (See table)
45 m MIN
Mini~wm Cec~lerction Lane
Length (Meters)
Highway Turning Traffic
Design Design Speed
Speed Stop. 20 30
50 70 60 60
60 100 90 80
70 115 105 100
80 130 120 120
90 145 135 135
100 160 150 150
110 130 180 170
Adjustment Multipl ier
for Grades Greater Than 3%
Percent Upgrade Downgrade
Grode
3% to
less o 9 1 2
than 5%
5%
or o 8 1 35
more
* For use when the turning traffic
is I ikely to stop before completing
the turn (eg - where pedestrians
ore prese'lt )
When~he adjusted length of 0
right-turn lone is less than 60 m,
the minimum length of 60 m, os
shown, should be used
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.
S. Chamberlain & Associates, Inc.
Engineering - Planning - Surveying
P O. Box 3485, Lacey, Washington 98503
(360) 493-6002
To:
Cathie Carlson
City of Yelm
POBox 479
Yelm. WA 98597
Invoice Date" 7/31/95
Invoice #. 11851
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Professional Services
Charl!e
Preparation of seoping sheet/trip generation assisgnment, and meeting with
City of Yelm and developer
$267 99
Preparation of trip distribution network using Yelm traffie model for use in
preparing TIA.
$692.00
Total:
$ 959 99
Expenses
Faxes
Ouantitv
600
Unit Cost
$ 1.00
Char1!e
$ 6.00
600
$ 6.00
Total:
$ 600
Invoice Total
Total Services:
Late Fee.
Retamage
$ 965 99
$ 000
$ 000
Total Now Due
$ 965.99
Aqed Receivables:
Current
$ 965 99
31-60 Days
$ 000
61-90 Days
$ 000
91-120 Days
$ 000
Over 120 Days
$ 000
s. Chamberlain & Associates, Inc.
~;'(,ir~:/';
~., ;;. .,
PROJECT MEMORANDUM
~
';':~1:L>t-;~;<:'~;~i .;
DATE
July 21, 1995
FROM.
CathIe Carlson, CIty Planner
CIty ofYelm
Perry A. Shea, P l~iPal
TO
SUBJECT'
Nisqually Estates ResIdentIal Development Tnp DIstrIbutIOn
SCA#95061.A
Nisqually Estates IS a 120 lot resIdentIal subchVlsIOn planned for constructIOn
on a 30 acre parcel located along the west sIde of SR 507, and south of MIll
Road m the CIty of Yelm. ThIS memo IS mtended to address the chstnbutIOn
of new traffic from thIs project onto the area roadways
The chstnbutIOn percentages were determmed usmg the Thurston RegIOnal
Planmng CouncIl (TRPC) transportatIOn model WIth Yelm area
enhancements. A "select zone analysIs" model srmulatIOn was performed for
Yelm model zone #1 (RegIOnal zone #495) From thIs mformatIOn,
chstnbutIOn percentages were calculated for the proposed resIdentIal
development. The area roadway network and sIte chstributIOn percentages
are shown on Figure 1 Also attached IS the "Scopmg Sheet" whIch IdentIfies
the study intersectIOns to be analyzed m the Traffic Impact AnalYSIS (TIA)
report.
I hope thIs mformatIOn IS useful to you. If you have any questIOns or need
adchtIOnal mformatIOn, please call me at 493-6002 Thank you.
enc Scopmg Sheet; FIgure 1, Tmode12 prmtout
(c: 'winword '5061adst,nuno)
677 Woodland Square IIp SE
POBox 3485
Lacey, Washington
98503-0485
(360) 493~6002
(360) 493-2476 Facsimile
(907) 279-5929 Anchorage
ENGINEERING
.
PLANNING
.
SURVEYING
c}
~G
<(}<<; /2%
()"-"
Cj
c}
~0/3%
~t;('
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LEGEND
xxr. PERCENT SITE TRAFFIC
PROJECT
SITE
103RD ST
-
"- 10
I -- :::0
3% rrl
rrl
^
tf)
-l
'- I
I
104THI 0 24%
~I I""
^
s: :::0 ~O
r 0
r I s: ~
3% 1:::0 0
:::0 4% ( ~<0
0 :::0
109TH I tf)
:::0
0
I 2%
P.M. PEAK HOUR DIRECTIONAL DISTRIBUTION
NISQUALL Y ESTATES RESIDENTIAL DEVELOPMENT
,
CD
...
TNODEl ™ 2
C\I
~
3 ~
~~ J~
1 I A "Y... ~ /"~
~\ ~~ 2
2 .-.---r-1
3 '1
1
A
NIN
U1\W
WW
J
t
for
select zone
NiSQuallY Estates
s CH~M6EP~~IN ~ ~ssoc
AnalysiS
(using yelm Zone
INC ~~cE~. VI~
~ 1)
1
1
5061,1. \.\.)(
y\.7106 NOlO
\.\., 16060/7,201
uR: 2A375/14A6'
07_21-199'5
TRAFFIC IMPACT ANALYSIS SCOPING SHEET
PROJECT INFORMATION
Project Name: Nisqually Estates
Date: July 28, 1995
Ref. No.: 95061.A
Proposed Use: Single Family Residences
Size (Dwelling Units): 120
Location: In the City ofYelm, on the north side of SR 507, across from 104th Ave.
Geographic Distribution: North 20%
East 45%
South 5%
West 30%
Trip Generation
Land Use Code:
Year of Occupancy:
Ambient Growth:
Related Projects:
210
1998
4%
To be researched by
consultant under
approval of the CIty
of Yelm.
Studv Intersections
1 North SIte DrIve/1st Street (SR 507) 6. Yelm Avenue/Solberg Street
2 South Site Drive/1st Street (SR 507) 7 Yelm Avenue/l03rd Avenue
3 Mosman Road/1st Street (SR 507) 8 Five Corners
4. Yelm Avenuellst Street (SR 507) 9
5 Yelm AvenuelEdwards Street 10
Tills analysIs must follow CIty ofYelm guidelines for a Traffic Impact Analysis.
Project Developer:
Paul Steadman
1801 W Day Island Blvd
Tacoma, W A 98466
(206) 565-7140
Mark Carpenter
POBox 77
McKenna, W A 98558
(360) 458-8222
(c:\ WPWIN60\GEOFILES\5061ATIA.SCp)
:)
(\
\
ATTACHMENT B
TRAFFIC IMP ACT ANALYSIS REPORT
SCOPE OF WORK
NisquaUy Estates Residential Subdivision
Yelm, Washington
Project Tasks
]. Meet with City of Yelm Public Works Department and Project Proponent to finalize
scope of tramc impact analysis study for the proposed development, Prepare project
information for SCOPING meeting.
2. Collect available traffic and accident data from the City of Yelm, Thurston County, and
Washington State Department of Transportation (WSDOT).
3. Conduct manual evening peak period turning movement counts at the following
intersections:
· SR S07/Mosman Road
· SR 507/Solberg Street
· SR 507/Site Driveway (vicinity)
Addilionallowlions designated by the City will be consiMred extra services in accordance 'With
A ttac}zment C.
4 Estimate site-generated tra.ffic for the proposed development. Prepare " trip-
generaUon" table.
5. Distrjbute and assign site generated traffic to the adjacent roadway netwol'k using data
contained in the Yelm traffic model and current traffic volume data of the adjacent
street network. Coordinate with City pel'solIDel.
6 Conduct capacity and level of service analyses for existing conditions and horizon year
scenarios with and without the proposed dev~lopment. It is assumed that multiple
development phases will be implemented for this project (2 - phases for each Division
of the properly). The following intersections will be analyzed for traffic impacts to
satisfy City of Yelm guidelines and requirements for this project:
· SR 507/North Site Driveway
· SR 507fSouth Site Driveway
· Yehn Avenue W./First Street
· SR 507fMosman Road
,
S CHAMBERLAIN & ASSOCIATES, INC
7/18/95
1
NISQUALLY ESTATES
SCOPE OF WORK PROPOSAL
i17- :-1:.15 Ut ::SFr.,1 FO='
r)
..
ATTACHMENT B
. Yelm Avenue W /Edwat'ds Street
. Yelm Avenue W.jSolberg Street
. YelmAvenue E./103rd Avenue
. FJve. Corners Intersoction
AdditionallocatioJ1.S designated by t1re City during the "SCOPING" process will be considered
extra seroices in accordance witlt Attachment C.
7. Assess development Jmpact on the adjacent street network following projecl
completion.
8. Provide recommendations and mitigation measures to accommodate traffic impacts
created by each phase of project development. Estimate the proportionate lihare cost of
contributing to the Iffive-corners" intersection. Proposed mitigation measures will be
identified and described and will conform with the requJrements of the City of Yelm.
9. Prepare Traffic Impact Analysis Study documentation, complete with appropria.te tables
and figures, summarizing our findings for review by the City of Yelm and the Project
Proponent.
10. Revise report to incorporate any conunents and submit report to the City of Yelm for
final approval.
Schedule
Upon notice to proceed, we will complete Ule traffic impact analysis report for review wJthin 20
working days following the SCOPING meeting. This schedule may be subject to change if the
project is delayed beyond the control of S. Chamberlain & Associates, Inc.
Estimated Cost
The estimated cost for professional services for this project is $4,800 Additional services
requested, but not identified in the scope of work, will be considered lIextra services" and will
he charged on a time and materials basis in accordance with the attached billing rate schedule.
8. CHAMBERLAIN & ASSOCIA TESt INC.
7/18/96
2
NISQUALL Y ESTATES
SCOPE OF WORK PROPOSAL
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