Traffic Impact Analysis - August 2000
\
10/18/2000 15 35
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3504932475
seA ENGINEERING
II
Consulting !oup
POBOx 3485
Lacey, Washington 98509-3485
677 Woodland Square Loop SE
(360) 493-6002
(888) 493-6002 TOLL FREE
(360) 493<~476 FAX
FAX To.Cathle Carlson
FAX NO: 458-4348
FAX FROM: Perry Shea
RI!:
AGENCY PROJECT IIIUMBER:
PROJECT NAME:
PAGE 01
FAX
seA PROJECT NUMBER:
00006002
DATE:
October 18, 2000
NUMBER OF PAGes.
3
o A HARD COPY WILll3E
MAILED
o A HARD COpy WILL NOT BE
MAILED
REMARKS.
Please review this and call me at 493-6002 if you have any questions. Thank you
TRANSMITTED BY kc for Perry Shea
cc
ThiS facsimile may contain confidential, privileged informatIon Intended only for the Individual Or entity to whom It IS addressed. Do not
read, copy or disseminate this information unless YOu "re the addressee (or the person responsible 1'or delivering it) If you have received
thiS communication in error, please return the original communication to SeA Consulting Group via the postal service. Mailing costs will be
reimbursed Thank you
10/18/2000 15 35
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3504932475
seA ENGINEERING
PAGE 02
,
Oetober 18, 2000
[Q)[fJ~[jiV
Cathie Carlson
City of Yelm
PO Box 479
Yelm, WA 98597
Re: Bruno Residential Plat (Hawks Landing) 8t. CommQrcial Site - Traffic
Study Review Comments
seA #00006.002
Dea r Cath ie
I have reviewed the Traffic Impact Analysis (TIA) report for the proposed Bruno Plat,
referred to as Hawks Landing prepared by Heath & Associates, Inc., dated August 2000
In general, the TIA provides an adequate analysis of evaluating site impacts and
driveway aeeess operations on the adjacent roadways and intersections. The traffic
study was prepared In accordance with the City's llA and has incorporated our
comments from the scoplng process.
The proposed mitigation measures identified in the TIA are acceptable except for the
following revisions, additions and clarifications described below
1 SR 507 (First ~tr~et) Frontage & Intersection Channelization - The following
improvements will be required to facilitate the ingress and egress of project
traffIc onto the SR 507 corridor and will be installed by the project developer'
. Install complete frontage improvements along the entire project frontage
of SR 507 as a part of the residential development. The frontage will be
constructed to a City of Yelm Urban Arterial standard and will include a
12~foot center tum lane, 11 ~foot through lane, 5-foot bicycle lane, planter
strip, street lighting and 6-foot sidewalk. The actual alignment and
loeation of the widenIng will be based on an "Approved Channelization
Plan" prepared by a licensed engineer with expertise in highway and
roadway design The City of Yelm will approve the channelization plan
before aceepting final design drawings from the developer
. Provide a minimum iOO-foot left tum lane on SR 507 and an eastbound
right-turn taper (per WSDOT Design Manual) for ingress into the
reSidential access.
10/18/2000 15 35
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3504932475
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PAGE 03
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Locate the commercial site access a minimum '~eet from the ' r!'\r} Y
proposed Y-2 corridor right-of-way Install a rM~ taper for ~~ ~ \
eastbound traffic. '\
seA ENGINEERING
Cathie Carlson
October 18, 2000
Page 2
2. TFC1;<;mtributions - In compliance with the City of Yelm TFC ordinance, the
project developer must eontrlbute $750 per new peak hour trip Based on
the net new 131 trips associated with the total project (69 trips for
residential, 62 for eonvenlence store), the developer will be responsible for a
TFC of $98,250 This traffic facility charge is calculated based on the
proposed land-use of the project The TFC will change if the commercial
land-uses are modified durIng project development
This concludes my review of the l1A and my recommendations for traffic access,
safety and roadway Improvements to accommodate the: increase in site traffle
associated with this proposal If you have any questions or need additional
information, please call me at (360) 493-6002.
Sincerely,
SCA Consulting Group
Perry A. Shea, P E
Principal
PAS/ch/kc
(f.\text\pf\00006\corres\yelm bruno plat tiC! review.002.ltr.doc)
05/05/2800 09 10
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2537701473
HEATH&ASSOe,INe
PAGE 05
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. HEATH & ASSOCIATES~ INC.
Transponation and Civil Engineering
June 5, 2000
Ms. Kathy Carlson
City of Yelm
105 Yelm Avenue West
Yelm. W A 98597
Subject: Seopmg for Bruno project
Dear Ms. Carlson.
This is a formal submIttal for scopmg of the traffic study reqwrements for the subject
project located on SR-507 Perry Shea wanted tins mformatIon for modeling purposes.
The seopmg infonnatJon attached IS sImIlar to what I submitted earher and has been
supplemented by a proposed tnp distributIOn. Evidently Mr Bruno has paid the 500
dollar fee for the model run. It IS my understanding the model nm will provide the
recommended tnp distribution and assignment for TIA purposes.
Please call If you require further mformation.
h,k
Greg Heath
2214 Thcoma Road. Puyallup, WA 98371 · (253) 770.1401 · Fax (253) 77(}.147)
~5/05/2000 09 10
2537701473
HEATH&ASSOe,INe
PAGE 05
TRAFFIC IMPACT ANALYSIS PROPOSED SCOPE
GENERAL
Project name:
Location:
Land use:
Project Access:
Bruno Project
South east sIde ofSR 507 south ofSE 104th Ave(see map)
61 lots, C-store with gas on comer lot - 8 fuelmg posItIons
One access off SR 507 (see site plan) for smgle farnlly, assume one
per roadway frontage for CommercIal
2001
Horizon Year'
4NALYSIS PERIOD
Peak period between 4 00 PM & 6'00 PM
INTERS~CTIONS TO EXAMINE
Access Pomts
As identified by modeling
PI~EUNE PROJECTS
As pel' junswctIon
/!RO RA[A SHARE CONTRIBUTION
As determmed by traffic study
ADDITIONAL COMMENIS.
Growth rate at 3% plus add pipeline traffic Idenufied by the City
ViCInlty map
Slte Plan
Tnp Generations
C-Store would assume 60 percent pass-by traffic element only WIth no diverted traffic
Access for the smgle family is proposed to also provIde access to a school In the future.
The school is not in process at thiS time and a possible TIA IfreqUlred by Yelm would be
prepared for 1t5 traffic.
~5/0~/2B00 09 10
2537701473
HEATH&ASSOe,INe
PAGE 07
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Transportation and Civil Engineering
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BRUNO-YELM
RESIDENTIAL SUBDIVISION WITH COMMERCIAL
TRAFFIC IMP ACT ANALYSIS
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YELM, WA
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Prepared for Dan Bruno
Hentage Homes
POBox 1269
Eatonvllle, W A 98328
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AUGUST 2000
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2214 Tacoma Road. Puyallup, WA 98371. (253) 770-1401 · Fax (253) 770-1473
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BRUNO-YELM
RESIDENTIAL SUBDIVISION WITH COMMERCIAL
TRAFFIC IMP ACT ANALYSIS
TABLE OF CONTENTS
1. IntroductIOn
II. Project DescnptIOn.
III EXIstmg CondItIons
IV Forecasted Traffic Demand
V ConclusIOns and MItIgatIOn
3
3
3
9
17
AppendIX
LIST OF TABLES
1
2
4
EXIstmg Level of ServIce
Tnp GeneratIOn
Future Level of ServIce
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17
LIST OF FIGURES
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2
3
4
5
6
7
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VICInIty Map and Roadway System
SIte Plan
EXIstmg Peak Hour Volumes
Project Traffic - Pnmary Tnps
Project Traffic - Pass-By Tnps
Project Traffic - Total Tnps
PIpelme Traffic
2002 Peak Hour Volumes Without Project
2002 Peak Hour Volumes With Project
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BRUNO-YELM
RESIDENTIAL SUBDIVISION WITH COMMERCIAL
TRAFFIC IMP ACT ANAL YSIS
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I INTRODUCTION
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ThIS study serves to mvestIgate traffic Impacts related to the proposed Bruno- Y elm
subdIvIsIOn wIth ItS commercIal element. The mam goals of thIS study focus on the
assessment of eXIstmg traffic condItIons and mtersectIOn congestIon, forecasts of newly
generated project traffic, and estImatIOns of future mtersectIOn delay The first task
mcludes the collectIOn of general roadway mformatIOn, road Improvement mformatIon,
entenng SIght dIstance data, and peak hour traffic counts Next, a detailed level of servIce
analysIs of the eXlstmg volumes IS made to determme the present degree of mtersectIOn
congestIOn. Forecasts of future traffic and dIspersIOn patterns on the street system are
then determmed usmg establIshed tnp generatIon and dIstributIOn technIques Followmg
thIS forecast, the future servIce levels for the key mtersectIOns are mvestIgated. As a final
step, appropnate conclusIOns and possible off-SIte mItIgatIOn measures are defined.
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II PROJECT DESCRIPTION
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The proposed project IS a second phase of a prevIOusly approved resIdentIal subdIvIsIOn
compnsed of 61 mdlvIdual housmg umts along WIth a commerclallot for a probable C-
Store/Gas StatIOn. Total SIte area IS approxImately 15 6 acres WIth an overall densIty of
approxImately 4 umts per acre The SIte IS located on the south SIde ofSR-507, and Just
south of SE 104th Avenue m the City ofYelm, W A. Based on management proJectIOns,
occupatIOn of thIS development IS antICIpated by 2002 FIgure 1 shows the general SIte
locatIOn and SIte plan showmg the overall lot configuratIon and mternal roadway IS
shown m FIgure 2
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III EXISTING CONDITIONS
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A. Surroundmg Roadway System
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Roadways servmg the proposed SIte range from two lane major artenals to two-lane
collector roads WhICh vary m WIdth, terram, and posted speeds. These roadways vary m
theIr overall functIOn as part of the general network. The key streets near the SIte are
described below
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South First Street IS also the State Route 507 ThIS IS a two lane road, WIth a left turn
lane at the mtersectIOn WIth SR-510 The speed lImIt near thIS mtersectIOn IS 25 mph,
whIle to the south the speed lImIt IS 55 mph. Shoulders are roughly 5 feet WIde and
consIst of asphalt and grass or curb and SIdewalk.
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HEATH & ASSOCIATES, INC
Transportation and Civil Engineering
VICINITY MAP AND ROADWAY SYSTEM
fiGURE I
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fiGURE 2
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Yelm Avenue IS a two-lane roadway WhICh lIes northeast of the property and runs m a
northwesterly-southeasterly dIrectIOn. Lanes are 12 feet wIde, whIle shoulders are
roughly 4 feet wIde and composed of asphalt/gravel or curb and sIdewalk. Northwest of
the mtersectIOn wIth the S FIrst Street, Y elm Avenue IS also State Route 510, while
southeast of the mtersectIOn It IS State Route 507
Other roadways m the area Identified as receIvmg some project traffic areICullens-S-tr?et --r
NW and FIrst Street NE ----- -- .J
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B EXIstmg Peak Hour Volumes
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FIeld data for thIS study was collected m February of 2000 The traffic count was taken
dunng the evenmg peak penod between the hours of 4 PM and 6 PM. ThIS speCIfic peak
penod IS targeted for analysIs purposes smce It generally represents a worst case scenano
for resIdential developments wIth respect to traffic condItIOns. ThIS IS pnmanly due to
the common 8 AM to 5 PM work schedule and the greater number of recreatIOn and
shoppmg tnps assoCiated wIth the early evemng penod. Dnvers often travel home after
work at approXImately the same time of day, typIcally between 5 PM and 6 PM, WhICh
translates to a natural peak m mtersectIOn and artenal traffic loads. FIgure 3 on the
followmg page shows the evemng peak hour count taken at the pnmary mtersectIOn of
Y elm Avenue and FIrst Street. Average daily traffic (ADT) volumes for State Routes are
aVailable from the Washmgton State Department of TransportatIOn.
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C Level of ServIce DescnptIon
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Peak hour mformatIOn and geometnc mtersectIOn data collected m the field were used to
perform capaCIty computatIOns m accordance WIth the 1997 Highway Capaclty Manual
CapaCIty analysIs IS used to determme level of servIce, WhIch IS an establIshed measure
of congestIOn for transportatIOn facIlIties. The concept of LOS was pIOneered m the
1950's by the then Bureau of PublIc Roads (now the FHWA) LOS IS defined for a
vanety of faCIlIties mcludmg mtersectIOns, freeways, artenals, two-lane hIghways, etc
IntersectIOn methodologIes for unsIgnalIzed condItions are described below
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The methodology for determmmg the LOS at SIgnalIzed mtersectIOns stnves to determme
the volume to capaCIty (v/c) ratios for the vanous mtersectIon movements as well as the
average stopped delay for those movements. The measure of delay IS generally used to
ascertam 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 (statIOnary) at an mtersectIOn. ASIde from the overall quantity of
traffic, key factors WhICh mfluence SIgnalIzed mtersectIOn LOS mclude the type of SIgnal
operatIOn, speCIfic phasmg pattern, allocatIOn of green time, and external frIction factors.
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The methodology for determmmg the LOS at unsIgnalIzed mtersectIOns stnves to
determme the potential capaCItIes for the vanous vehIcle movements and ultimately
determmes the average total delay for each speCIfic vehIcle movement. Potential
Capacity represents the number of addItional vehIcles that could effectively utIlIze a
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Transportation and Civil Engineering
EXISTING PM PEAK HOUR VOLUMES
FIGURE 3
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partIcular movement, WhICh IS essentIally the eqUIvalent of the dIfference between the
movement capaCIty and the eXIstmg movement volume Total delay IS described as the
elapsed tIme from when a vehIcle stops at the end of a queue untIl the vehIcle departs
from the stop lme Average total delay IS SImply the mean total delay over the entIre
traffic stream. Several factors mfluence potentIal capaCIty and total delay, rangmg from
the aVaIlabIlIty of gaps m the traffic stream, the usefulness of gaps, the pnonty rankmg of
movements, bus presence, pedestnan mfluences, and several others
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The range for mtersectIOn level of servIce IS typIcally regarded as LOS A to LOS F WIth
LOS A mdIcatmg low delays/congestIOn and LOS F mdIcates long delays DetaIled
descnptIOns of mtersectIOn LOS are gIVen m the HIghway CapaCIty Manual
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D Level of ServIce Results
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The results of the level of servIce analYSIS are gIven m Table 1 below These results were
determmed through the use of the automated mtersectIOn analYSIS program known as
Signal97 ThIS program IS based on Highway CapaCIty Manual analYSIS procedures for
SIgnalIzed mtersectIOns Refer to Chapter 9 of the HCM.
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TABLEl
EXIstmg Level of ServIce
Delays given in seconds per vehicle
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Intersection
Yelm/FIrst
Control
SIgnal
Approach
Southbound
Westbound
Northbound
Eastbound
Overall
LOS
D
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D
Delay
426
344
31 5
33 1
356
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As shown m Table 1, thIS mtersectIOn presently expenences mIld to moderate delays,
WIth overall delays at LOS D
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E. Pedestnan and BIcycle Traffic
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ObservatIOns for pedestnan and bIcycle actIVIty were made dunng the vehIcle count.
Mild non-motonst actIVIty was noted. Non-motonst volumes dId not appear to have
much mfluence on vehIcle progreSSIOn.
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The nearest tranSIt servIce aVaIlable IS on Y elm Avenue InterCIty Route 94 runs on Yelm
Avenue, WIth a stop near the Yelm/FIrst mtersectIOn. No dIrect tranSIt servIce would be
prOVIded for the proposed sIte. Only mmor tranSIt usage would be realIzed m the future
WIth most project tnps made VIa passenger car No tnp generatIOn reductIOns were made
for tranSIt.
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PrelImmary exammatIOns of the proposed accesses onto SR 507 were made to determme
whether or not adequate entenng and stoppmg sIght dIstance can be provIded for mbound
and outbound project traffic Based on field reVIews, It appears that both accesses have
sufficIent aVailable sIght dIstance No obstructIons or honzontal or vertIcal road
curvature was noted near the entrances.
Tnp generatIOn IS used to determme the magnItude of proJect Impacts on the surroundmg
street system. ThIS IS usually denoted by the quantIty or speCIfic number of new tnps that
enter and eXIt a project durmg a desIgnated tIme penod, such as a speCIfic peak hour or an
entIre day Data presented m thIS report was taken from the InstItute of TransportatIOn
Engmeers publIcatIOn, Trip Generation, SIxth edItIon (LUe 210) Table 3 shows the tnp
generatIOn values used for thIS study Included are the average weekday daily volume
and the AM and PM peak hour generatIOn volumes for the proposed 49 dwellmg umts.
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G SIght DIstance at Accesses
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IV FUTURE TRAFFIC DEMAND
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A. Tnp GeneratIOn
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TABLE 2
Tnp GeneratIOn Volumes
As shown m the table, the reSIdentIal portIOn shows approxImately 25 percent fewer tnps
expected for the AM peak hour penod compared to the PM peak. ThIS IS typIcal for
reSIdentIal subdIVIsIons where the dIscrepancy m mommg and evemng peak volumes IS
somewhat notIceable As IS usually the case, the greater number oftnps generated dunng
the PM peak are due to a hIgher number of personal tnps such as recreatIOn and
shoppmg.
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61 Units of
Time Period Smgle Family Detached
Average Weekday Traffic 658 vpd
AM Peak Inbound 13 vph
AM Peak Outbound 39 vph
AM Peak Total 52 vph
PM Peak Inbound 44 vph
PM Peak Outbound 25 vph
PM Peak Total 69 vph
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Conv Mart with
8 Fuel Posltwns
4341 vpd
69 vph
69 vph
137 vph
77 vph
77 vph
154 vph
Total
4999 vpd
82 vph
108 vph
189 vph
121 vph
102 vph
223 vph
A sIgnIficant amount of the traffic volume assocIated wIth convemence/gas uses IS m the
form of pass-by tnps and dIverted tnps wIth only a portIOn of the project volume defined
as pnmary tnps. A pass-by tnp IS defined as a tnp made as an mtermedIate stop on the
way to a pnmary destmatIOn. Such a tnp IS attracted from traffic "passmg by" a sIte on
an adjacent street WhICh contams dIrect access to the generator A second traffic volume
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element assocIated wIth thIs use but to a lesser degree IS the dIverted tnp whIch IS a
vehIcle already on the traffic network whIch decIdes to dIvert to the project SIte from a
neIghbonng roadway In both cases the tnp to and from the convemence mart IS m some
sense "spur of the moment" and convemence based.
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TypIcally, to gIve a conservatIve estImate of project Impacts, pass-by tnps should be
exammed exclusIvely as they become transparent or not detectable at outlymg
mtersectIOns. Such tnps for convemence marts have been found to account for an
average of 66 percent of the total peak hour project traffic To gIve a slIghtly
conservative estimate oftnp reduction, however, a figure of 60 percent was employed for
thIS project. The pass-by reductIOn IS not shown m Table 2
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B Tnp DIstributIOn Pattern
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Tnp dIstributIOn describes the process by whIch project generated tnps are dIspersed on
the street network surroundmg the SIte SIte generated tnps are expected to follow the
tnp pattern shown m FIgures 4,5, and 6 FIgure 4 shows the pnmary, or destmatIOn-
based tnps taken by both the resIdential and commercIal portIOns of thIs project. As
shown m the figure, the dIstributIOn IS splIt WIth 20 percent southwesterly, 30 percent
southeasterly, 10 percent northeasterly, 5 percent northerly, and 35 percent northwesterly
FIgure 5 shows the effect of the pass-by tnps on the project entrances. Smce pass-by
tnps are already a part of the eXIstmg traffic patterns, they have no Impact on outlymg
mtersectIOns, as shown m the figure The combmed totals of pnmary and pass-by tnps
are shown m FIgure 6
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C Peak Hour Volumes With and Without the Project
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CompletIOn of thIS subdIvISIon IS expected by the year 2002, therefore, future traffic
volumes for the 2002 honzon year IS targeted and analyzed. Baselme 2002 peak hour
volumes WIthout the project were denved by applymg a 2 percent growth rate per year to
the eXIstmg volumes of FIgure 4 The turnmg and through movements of FIgure 4 were
mcreased by 2 percent over a 2 year penod whIch translates to an overall growth factor of
1 022 = 1 04 The 2 percent growth rate IS based on hIstoncal traffic growth data, the
proXImIty of commerCIal areas, and antiCIpated growth patterns. Prame View was added
as a pIpelme project. 2002 mtersectIOn volumes WIthout the project are gIven m FIgure 8
(WIth pIpelme tnps mcluded) whIle volumes WIth the project are shown m FIgure 9
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D Level of ServIce
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A level of servIce analYSIS was made of the future peak hour volumes WIth and WIthout
project generated tnps added to the pnmary mtersectIOns and entrance nodes. Results for
mtersectIOn delay condItIOns were determmed through the use of the Win UNSIG and
Signal 97 programs. WinUNSIG IS based on HCM Chapter 10 procedures for
unsIgnalIzed mtersectIOns A summary of the analYSIS results IS shown m Table 3 on
page 17
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HEATH & ASSOCIATES, INC
Transportation and Civil Engineering
PROJECT TRAFFIC - PRIMARY TRIPS
FIGURE 4
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HEATH & ASSOCIATES, INC
Transportation and Civil Engineering
PROJECT TRAFFIC PASS BY TRIPS
FIGURE 5
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HEATH & ASSOCIATES, INC
Transportation and Civil Engineering
PROJECT TRAFFIC - TOTAL TRIPS
FIGURE b
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Transportation and Civil Engineering
PIFELlNE TRAFFIC
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Transportation and Civil Engineering
2002 PM PEAK HOUR VOLUMES WITHOUT PROJECT
FIGURf 8
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Transportation and Civil Engineering
2002 PM PEAK HOUR VOLUMES WITH PROJECT
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FIGURf 5
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The 2002 LOS analysIs both wIth and wIthout the project mdIcate delays of LOS D for
the pnmary Yelm Ave/FIrst St mtersectIOn. Project traffic IS expected to add roughly a
second to average overall delays at thIS locatIOn. For the proposed entrances, delays of
LOS B are expected for the eXItmg movements onto SR-507 Left turns mto eIther
entrance are expected to mcur LOS A delays.
Left turn lanes are a means of provIdmg a necessary storage area for left turnmg vehIcles
at mtersectIOns. For a two-lane or four-lane artenal wIth no left turn storage, delays are
often created by vehIcles waItmg to complete the desIred left turn movement. These
turnmg vehIcles typIcally block the heaVIer through movement, thereby causmg some
dIsruptIOns to traffic flow and subsequent congestIOn. Methods have been developed by
vanous agencIes to determme under what CIrcumstances a left turn lane would be needed.
For thIS Impact study, procedures from the WSDOT DeSIgn Manual, FIgure 910-8 were
used to ascertam storage reqUIrements on SR-507 at both project entrances. The results
of thIS assessment mdIcate that a left turn lane is needed at the commercial entrance, but
IS apparently not needed at the residential entrance, although It IS close. Due to the
vaganes of traffic counts, the volumes may well be suffiCIent to warrant a left turn lane at
the reSIdentIal entrance Refer to the appendIx for the nomographs and mput data.
The Bruno- Y elm prOj ect proposes to create 61 smgle- famIly resIdentIal lots, as well as a
commercIal lot for a convemence mart WIth gas pumps. The SIte IS located just to the
southwest of the CIty ofYelm on SR-507 The pnmary artenal dIrectly servmg the SIte IS
SR-507, or S FIrst Street, from WhICh dIstributIOn to the road network IS estImated m
accordance WIth the tnp aSSIgnment shown on FIgure 4 ThIS project IS expected to see
an average of 658 reSIdentIal tnp movements and 4341 convemence mart tnp movements
dunng a typIcal weekday However, 60 percent of the convemence mart traffic IS
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TABLE 3
Future 2002 Level of ServIce
Delays given in seconds per vehicle
'""\
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IntersectLOn
Yelm/FIrst
Control
SIgnal
Geometry
Southbound
Westbound
Northbound
Eastbound
Overall
Westbound
Southbound L T
Westbound
Southbound L T
Without ProTect
LOS Delay
D 480
D 398
C 325
D 356
D 397
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Stop
507/Res Ent
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507/Conv Ent
Stop
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E. Left Turn Lane Warrants
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V CONCLUSIONS AND MITIGATION
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17
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With Pro1ect
LOS Delay
D 487
D 406
C 333
D 375
D 406
B 10.2
A 80
B 107
A 79
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expected to be pass-by m nature, wIth no Impact to outlymg mtersectIOns An estimated
52 vehIcle tnps are assocIated wIth the AM peak hour and 69 tnps wIth the PM peak hour
for the resIdential portIOn. Estimates for the convemence mart are at 189 and 223 tnps
for the AM and PM peak hour, respectIvely, before pass-by reductIOns are made.
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The area IS charactenzed WIth moderately traveled roads and mIldly congested
mtersectIons. As noted m Table 1, current delays at Ye1m A venuelFIrst Street are at LOS
C to LOS D 2002 traffic volumes at the mtersectIons were also determmed and
analyzed, WIthout and WIth project traffic mcluded. Table 3 notes that the Ye1m/FIrst
mtersectIon IS still expected to see LOS C to LOS D delays WIth eIther scenano
Entrance delays should be low
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SIght dIstance at the project entrances appears to be adequate, based on a 55 mph speed
lImIt. Usmg WSDOT FIgure 910-8 analYSIS, left turn storage IS needed at the commercIal
entrance The resIdential entrance appears to be Just under the threshold for left turn
storage reqUIrements V olume counts are qUIte vanab1e, and there may well be suffiCIent
volumes on SR-507 to warrant left turn storage at the resIdential access
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Based on the above, recommended mItIgatIOn IS constructIOn of a two-way left-turn lane
(TWL TL), bUIlt to WSDOT standards, to serve both the commercIal access and the
resIdentIal access, WIth 30 ill (984ft) of storage for the resIdentIal access. If the
commercIal plot IS to remam fallow or bUIlt later, then the TWL TL should be constructed
only for the resIdentIal portIOn, then extended to the commercIal plot when that bUI1dmg
permIt IS applIed for
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No other mItigatIOns are IdentIfied.
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BRUNO- YELM
RESIDENTIAL SUBDIVISION WITH COMMERCIAL
TRAFFIC IMP ACT ANAL YSIS
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APPENDIX
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LEVEL OF SERVICE
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The followmg are excerpts from the 1994 Highway Capacity Manual - TransportatIOn
Research Board Specral Report 209, as well as the 1997 Update to the HCM
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The concept of levels of servIce uses qualItatIve measures that charactenze operatIOnal
condItIons wIthm a traffic stream and theIr perceptIOn by motonsts and passengers. The
descnptIOns of mdIvIduallevels of servIce charactenze these condItIOns m terms of such
factors as speed and travel tIme, freedom to maneuver, traffic mterruptIOns, and comfort
and convemence
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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. Each level of servIce represents a range
of operatmg condItIOns
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Level-of-ServIce defimtIOns
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The followmg defimtIOns generally define the vanous levels of servIce for artenals
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Level of service A represents pnmanly free-flow operatIOns at average travel speeds,
usually about 90 percent of the free-flow speed for the artenal claSSIficatIOn. VehIcles are
seldom Impeded m theIr abIlIty to maneuver m the traffic stream. Delay at SIgnalIzed
mtersectIOns IS mImmal.
"
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Level of service B represents reasonably ummpeded operatIOns at average travel speeds,
usually about 70 percent of the free-flow speed for the artenal claSSIficatIOn. The abIlIty
to maneuver m the traffic stream IS only slIghtly restncted and delays are not bothersome
"
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Level of service C represents stable operatIons, however, abIlIty to maneuver and change
lanes m mIdblock locatIOns may be more restncted than m LOS B, and longer queues,
adverse SIgnal coordmatlOn, or both may contribute to lower average travel speeds of
about 50 percent of the average free-flow speed for the artenal claSSIficatIOn.
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Level of service D borders on a range m whIch small mcreases m flow may cause
substantIal mcreases m approach delay and hence decreases m artenal speed. LOS D
may be due to adverse SIgnal progreSSIOn, mappropnate SIgnal tImmg, hIgh volumes, or
some combmatIOn of these Average travel speeds are about 40 percent of free-flow
speed.
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Level of servIce E IS charactenzed by sIgmficant delays and average travel speeds of one-
thIrd the free-flow speed or less. Such operatIOns are caused by some combmatIOn of
adverse progreSSIOn, hIgh SIgnal denSIty, hIgh volumes, extenSIve delays at cntIcal
mtersectIOns, and mappropnate SIgnal tImmg.
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Level of service F charactenzes artenal flow at extremely low speeds, from less than one-
thud to one-quarter of the free-flow speed. IntersectIOn congestIon IS likely at cntIcal
sIgnalIzed locatIOns, wIth long delays and extensIve queuIng.
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These defimtIOns are general and conceptual In nature, and they apply pnmanly to
umnterrupted flow Levels of servIce for Interrupted flow facIlItIes vary WIdely In terms
of both the user's perceptIOn of servIce qualIty and the operatIOnal vanables used to
describe them.
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For each type of facIlIty, levels of servIce are defined based on one or more operatIOnal
parameters that best describe operatIng qualIty for the subject facIlIty type WhIle the
concept oflevel of servIce attempts to address a WIde range of operatIng condItIOns,
lImItatIOns on data collectIOn and avaIlabIlIty make It ImpractIcal to treat the full range of
operatIOnal parameters for every type of faCIlIty The parameters selected to define levels
of servIce for each faCIlIty type are called "measures of effectIveness" or "MOE's", and
represent aVaIlable measures that best describe the qualIty 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 In the
parameters gIVen. Thus, a level of servIce IS not a dIscrete condItIon, but rather a range of
condItIOns for WhICh boundanes are establIshed.
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The followmg tables describe levels of servIce for sIgnalIzed and unsIgnalIzed
mtersectIOns. Level of servIce for sIgnalIzed 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 vehIcle for a 15-mmute analysIs penod. Level of servIce for unsIgnalIzed
mtersectIOns IS measured m terms of potentIal capacIty and average total delay of the lane
m questIOn.
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Signalzzed Intersections - Level of Service
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Level of ServIce
A
B
C
D
E
F
Stopped Delay per
VehIcle (sec)
~10
> 10 and ~20
> 20 and ~35
> 35 and ~55
> 55 and ~80
>80
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Unslgnalized Intersections - Level of Servlce
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Level of ServIce
A
B
C
D
E
F
Average Total Delay
per VehIcle (sec)
~10
> 10 and ~ 15
> 15 and ~25
> 25 and ~35
> 35 and ~50
>50
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As described m the 1997 Highway CapacIty Manual, level of servIce breakpomts for all-
way stop controlled (A WSC) mtersectlOns are somewhat dIfferent than the cntena used
for sIgnalIzed mtersectIons The pnmary reason for thIS dIfference IS that dnvers expect
dIfferent levels of performance from dIfferent kmds oftransportatlOn facIlItIes The
expectatIon IS that a SIgnalIzed mtersectlOn IS desIgned to carry hIgher traffic volumes
than an A WSC mtersectlOn. Thus a hIgher level of control delay IS acceptable at a
SIgnalIzed mtersectlOn for the same level of servIce
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A WSC IntersectlOns - Level of Service
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Level of ServIce
A
B
C
D
E
F
Average Total Delay
per VehIcle (sec)
~10
> 10 and ~15
> 15 and ~25
> 25 and ~35
> 35 and ~50
>50
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BRUNO-YELM
Summary of Trlp Generation Calculation
For 61 Dwelllng Units of Slngle Famlly Detached Housing
August 02, 2000
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Avg Weekday 2-Way Volume
7-9 AM Peak Hour Enter
7-9 AM Peak Hour EXlt
7-9 AM Peak Hour Total
4-6 PM Peak Hour Enter
4-6 PM Peak Hour Exit
4-6 PM Peak Hour Total
AM Pk Hr, Generator, Enter
AM Pk Hr, Generator, EXlt
AM Pk Hr, Generator, Total
PM Pk Hr, Generator, Enter
PM Pk Hr, Generator, EXlt
PM Pk Hr, Generator, Total
Saturday 2-Way Volume
Saturday Peak Hour Enter
Saturday Peak Hour Exit
Saturday Peak Hour Total
Sunday 2-Way Volume
Sunday Peak Hour Enter
Sunday Peak Hour Exit
Sunday Peak Hour Total
n
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n
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Average
Rate
Standard
Deviation
Adjustment
Factor
10 78
o 21
o 64
o 86
o 72
o 41
1 13
o 23
o 68
o 90
o 74
o 41
1 15
10 58
o 58
o 49
1 07
8 64
o 61
o 54
1 15
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
o 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
1 00
n
Note A zero indicates no data available
The above rates were calculated from these equatlons
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24-Hr 2-Way Volume
7-9 AM Peak Hr Total
LN (T)
T =
R^2 =
LN(T)
R^2
T =
R^2
LN (T)
R^2 =
LN(T)
T
T =
T =
R^2
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4-6 PM Peak Hr Total
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AM Gen Pk Hr Total
n
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PM Gen Pk Hr Total
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Sat
Sat
Sun
Sun
Volume
Total
Volume
Total
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2-Way
Pk Hr
2-Way
Pk Hr
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92LN(X) + 2 707, R^2
7(X) + 9 477
o 89, 0 25 Enter,
.901LN(X) + 527
o 91, 0 64 Enter, 0 36
704(X) + 12 09
o 89, 0 25 Enter,
887LN(X) + 605
o 91, 0 64 En t e r , 0 3 6
956LN(X) + 2 54, R^2
886(X) + 11 065
8 832(X) + -11 604, R^2
756(X) + 23 815
o 86 0 53 Enter, 0 47
o 75
o 75
n
Source Institute of Transportation Engineers
Trip Generation, 6th Edition, 1997
LJ
Drlveway
Volume
o 96
Exit
EXlt
EXlt
Exit
o 92
o 94
Exit
658
13
39
52
44
25
69
14
41
55
45
25
70
645
35
30
65
527
37
33
70
"
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Summary of Trlp Generatlon Calculatlon
For 8 Vehlcle Fueling Posltlons of Convenlence Market wlth Gasollne Pumps
July 11, 2000
Average
Rate
Standard
Devlatlon
AdJustment
Factor
Drlveway
Volume
Avg Weekday 2-Way Volume 542 60 113 52 1 00 4341
7-9 AM Peak Hour Enter 8 59 0 00 1 00 69
7-9 AM Peak Hour EXlt 8 59 0 00 1 00 69
7-9 AM Peak Hour Total 17 17 11 32 1 00 137
4-6 PM Peak Hour Enter 9 61 0 00 1 00 77
4-6 PM Peak Hour Exit 9 61 0 00 1 00 77
4-6 PM Peak Hour Total 19 22 12 02 1 00 154
AM pk Hr, Generator, Enter 8 52 0 00 1 00 68
AM Pk Hr, Generator, EXlt 8 52 0 00 1 00 68
AM Pk Hr, Generator, Total 17 03 11 39 1 00 136
PM Pk Hr, Generator, Enter 9 99 0 00 1 00 80
PM Pk Hr, Generator, Exit 9 99 0 00 1 00 80
PM Pk Hr, Generator, Total 19 98 12 23 1 00 160
Saturday 2-Way Volume 204 47 88 93 1 00 1636
Saturday Peak Hour Enter 5 29 0 00 1 00 42
Saturday Peak Hour Exit 4 88 0 00 1 00 39
Saturday Peak Hour Total 10 17 0 00 1 00 81
Sunday 2-Way Volume 166 88 70 19 1 00 1335
Sunday Peak Hour Enter 0 00 0 00 1 00 0
Sunday Peak Hour Exit 0" 00 0 00 1 00 0
Sunday Peak Hour Total 0 00 0 00 1 00 0
Note A zero lndicates no data available
Source Institute of Transportation Engineers
Trip Generation, 6th Edition, 1997
TRIP GENERATION BY MICROTRANS
,. A-&~ $ ,\, :&TE. ~9 ~~~ c)....) ~~
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Heath & Associates Inc
Transportation Division
2214 Tacoma Road File Name 1629b
Puyallup, WA 98371 Site Code 00001629
Start Date 02/14/2000
Page No 1
Start Time Left Left Left Int. Total
Factor 1.0 1.0 1.0
04'00 PM 28 23 28 420
04 15 PM 39 26 44 446
04.30 PM 42 24 40 469
04 45 PM 34 32 47 456
Total 143 105 159 1791
05 00 PM 60 20 32 26 117 28 25 11 11 8 77 41 456
05 15 PM 46 21 31 15 134 35 15 5 6 8 71 36 423
05 30 PM 27 9 21 17 124 29 18 13 8 4 101 35 406
05 45 PM 28 10 30 28 132 29 18 7 9 8 75 25 399
Total 161 60 114 86 507 121 76 36 34 28 324 137 1684
Grand Total 318 138 2571 187 993 2261 165 82 681 53 692 2961 3475
Apprch % 446 194 36.0 13.3 706 16.1 52.4 26.0 216 5.1 66.5 28.4
Total % 9.2 40 74 54 28.6 6.5 47 2.4 2.0 1.5 199 8.5
FIRST STREET
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Heath & Associates Inc
Transportation Division
2214 Tacoma Road
Puyallup, WA 98371
File Name
Site Code
Start Date
Page No
1629b
00001629
02/14/2000
2
App. App. Right App Int.
Total Total Total Total
479 110 696 92 42 38 172 30 338 172 540 1827
68.8 158 53.5 244 22.1 5.6 62.6 319
125 24 175 23 10 11 44 6 91 40 137 469
0.974
47 141
0957
-<
m
r
;;::
)>
<
m
Start Time Right ;~iai Right
Peak Hour From 04'00 PM to 05 45 PM - Peak 1 of 1
Intersection 04 15 PM
Volume 189 83 147 419 107
Percent 45.1 198 351 154
0430 49 22 42 113 26
Volume
Peak Factor
High Int. 04 30 PM 04 45 PM
Volume 49 22 42 113 26 120
Peak Factor 0.927
05'00 PM
32 178 25 11
0978
04 45 PM
11 47 7 87
0.915
FIRST STREET
CfuJ In ~
1 ;89~ ;471
:Tht Tr LC
T
North
.l T r
I I ,:~': '"~:: ?~'I
Out In T olal
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BRUNO-YELM
YELM AVENUE & FIRST STREET
EXISTING PM PEAK HOUR VOLUMES
08/07/00
15:56:07
u
r--I
SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Input Worksheet
u
n
Intersection # 0 -
189 83 147 II
0.0 12.0 12.0 II
0 1 1
II
------------- 1 \
Area Location Type: NONCBD
r--I
u
Key: VOLUMES -- >
I WIDTHS
v LANES
u
\
107 12.0 1
n
479 12.0 1
11\
I
North
I
u
-------------------
-------------------
30 0.0 0 \
+
\
II 38 42
II 12.0 12.0
II 1 1
II
1 110 12.0 1
172 12.0 1 1
-------------------
-------------------
'I
U
338 12.0 1
1
u
92
0.0
o
Phasing:
SEQUENCE
PERMSV N
OVERLP N
LEAD LAG
44
N N N
N N N
LD LD
r--I
r--I
u
r--I
Appr Grade % Heavy Veh. Adj.Pkg Bus Pk.Hr.Factor Conf.Ped Actuated Arr.Type
-------------- ------- -------------- -------- -------- --------
% RT TH LT Loc Nm Nb RT TH LT peds/hr RT TH LT RT TH LT
-------------- ------- -------------- -------- -------- --------
SB 0.0 2.0 2.0 2.0 NO 0 0 0.92 0.92 0.92 0- Y Y Y 3 3 3
WB 0.0 2.0 2.0 2.0 NO 0 0 0.96 0.96 0.96 0- Y Y Y 3 3 3
NB 0.0 2.0 2.0 2.0 NO 0 0 0.93 0.93 0.93 0- Y Y Y 3 3 3
EB 0.0 2.0 2.0 2.0 NO 0 0 0.98 0.98 0.98 0- Y Y Y 3 3 3
-------------- ------- -------------- -------- -------- --------
n
u
LJ
r--I
u
-------------------------------------------------------------------------
r--I
Sq 44
**1**
Phase 1
Phase 2
Phase 3
Phase 4
Phase 5
Phase 6
-------------------------------------------------------------------------
u
****
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~+++I
1++++>
I+++~
^
1 \
*
*
*>
* *
* *
u
r--I
North
I
<+
+
+
+ +>1
: : I
++++
<****
I
I
I
r--I
v
u
1
-------------------------------------------------------------------------
I
G/C=0.133
G= 12.0"
Y+R= 4.0"
OFF= 0.0%
G/C=0.218
G= 19.7"
Y+R= 4.0"
OFF=17.8%
G/C=0.144
G= 12.9"
Y+R= 4.0"
OFF=44.1%
G/C=0.327
G= 29.4"
Y+R= 4.0"
OFF=62.9%
G/c=O.OOO
G= 0.0"
Y+R= 0.0"
OFF= 0.0%
G/C=O.OOO
G= 0.0"
Y+R= 0.0"
OFF= 0.0%
r--I
u
-------------------------------------------------------------------------
r--I
C= 90 see
G= 74.0 see = 82.2% Y=16.0 see = 17.8% ped= 0.0 see = 0.0%
u
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BRUNO-YELM
YELM AVENUE & FIRST STREET
EXISTING PM PEAK HOUR VOLUMES
08/07/00
15:56:07
u SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Volume Adjustment Worksheet
"
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II
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L.J
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Appr Mvt
-Mvt Vol
vph
PHF
Flow
Rate
vph
Lane
Group
Adj
Flow
vph
Prop.of
LT RT
==============================================
SB-RT
SB-TH
SB-LT
170 0.92
83 0.92
147 0.92
185
90
160
TH+RT
LT
o 0.00 0.00
275 0.00 0.67
160 1.00 0.00
----------------------------------------------
WB-RT
WB-TH
WB-LT
107 0.96
479 0.96
110 0.96
111
499
115
RT
TH
LT
111 0.00 1.00
499 0.00 0.00
115 1.00 0.00
----------------------------------------------
NB-RT
NB-TH
NB-LT
83 0.93
42 0.93
38 0.93
89
45
41
TH+RT
LT
o 0.00 0.00
134 0.00 0.66
41 1.00 0.00
----------------------------------------------
EB-RT
EB-TH
EB-LT
30 0.98
338 0.98
172 0.98
31
345
176
TH+RT
LT
o 0.00 0.00
376 0.00 0.08
176 1.00 0.00
----------------------------------------------
SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Saturation Flow Adjustment Worksheet
Ap
pr
ch
Lane
Group
Mvmts
# Adjustment Factors
Ideal L -------------------------------------------------------
Satfl n Lane Heavy Bus Ar Lane Right Left Adj
pcphg - Width Vehs Grade Parkg Block Loc Util Turn Turn Fact
Adj
Sat-
flow
vphg
SB-
SB-
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.899 1.000 1.00 1675
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
-------------------------------------------------------------------------------
WB-
WB-
WB-
RT
TH
LT
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.850 1.000 1.00 1583
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 1.000 1.00 1863
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
-------------------------------------------------------------------------------
NB-
NB-
TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.900 1.000 1.00 1677
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
-------------------------------------------------------------------------------
EB-
EB-
TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.988 1.000 1.00 1840
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
-------------------------------------------------------------------------------
----,
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BRUNO-YELM
YELM AVENUE & FIRST STREET
EXISTING PM PEAK HOUR VOLUMES
08/07/00
15:56:07
SIGNAL97/TEAPAC[Ver 1.02.12] - 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 Grp
vph vphg vph
------------------------------------------------------------------
------------------------------------------------------------------
SB-
SB-
TH+RT
LT Pri.
275
160
1675
1770
0.164 0.218
0.090 0.133
366 0.751
236 0.678
*
*
------------------------------------------------------------------
WB- RT 111 1583 0.070 0.327 517 0.215
WB- TH 499 1863 0.268 0.327 608 0.821 *
WB- LT pri. 115 1770 0.065 0.144 254 0.453
------------------------------------------------------------------
NB- TH+RT 134 1677 0.080 0.218 366 0.366
NB- LT Pri. 41 1770 0.023 0.133 236 0.174
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EB-
EB-
TH+RT
LT Pri.
376
176
1840
1770
0.204 0.327
0.099 0.144
601 0.626
254 0.693
------------------------------------------------------------------
Cycle Length, C 90 sec
Lost Time Per Cycle, L 16.0 sec
Yc = Sum crit(v/s) 0.622
Xc = Yc x C/(C-L) 0.756
SIGNAL97/TEAPAC[Ver 1.02.12] ..:. HCM Level-of-Service Worksheet
Ap Lane Vol Green Unif progr Lane Calib Incr Lane Lan
pr Group Ratio Ratio Delay Fact Group Term Delay Group Grp Appr Appr
ch Mvts v/c g/C d1 PF Capac k d2 Delay LOS Delay LOS
sec/v vph sec/v sec/v sec/v
==============================================================================
SB-
SB-
TH+RT 0.751
LT 0.678
.218 32.9 1.00
.133 37.2 1.00
366 0.306
236 0.249
8.46
7.59
41.3
44.7
D+
D+
______________________________________________________------------> 42.6
WB- RT 0.215 .327 21.9 1.00 517 0.110 0.21 22.2 C+
WB- TH 0.821 .327 27.9 1.00 608 0.360 8.80 36.7 D+
WB- LT 0.453 .144 35.3 1.00 254 0.110 1.28 36.6 D+
______________________________________________________------------> 34.4
NB- TH+RT 0.366 .218 29.9 1.00 366 0.110 0.62 30.5 C
NB- LT 0.174 .133 34.6 1.00 236 0.110 0.35 34.9 C
______________________________________________________------------> 31.5
EB- TH+RT 0.626 .327 25.6 1.00 601 0.208 2.06 27.7 C
EB- LT 0.693 .144 36.6 1.00 254 0.260 7.88 44.5 D+
D+
C
C
------------------------------------------------------------------>
Cycle= 90" Duration=0.25 hours
Int Total 0.643 ================================================>
33.1 C
-----------
-----------
35.6 D+
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BRUNO-YELM
YELM AVENUE & FIRST STREET
EXISTING PM PEAK HOUR VOLUMES
08/07/00
15:56:07
SIGNAL97/TEAPAC[Ver 1.02.12] - Evaluation of Intersection Performance
Sq 44
**/**
Phase 1
------------------------------------------------
Phase 2 1 Phase 3 I Phase 4
------------------------------------------------
I 1
I I
<* * 1 1
I v 1 ++++1
I **** v I
<+ + +> ++++>
+ I + + 1++++
+ + + 1 v
------------------------------------------------
I
I
1
1
*
*
/1\
I
I
North
1
*>
* *
:+++1
<****1
I
I
I
G/C=O .133
G= 12.0"
Y+R= 4.0"
OFF= 0.0%
* *
G/C=0.218
G= 19.7"
Y+R= 4.0"
OFF=17.8%
G/C=0.144
G= 12.9"
Y+R= 4.0"
OFF=44.1%
G/C=0.327
G= 29.4"
Y+R= 4.0"
OFF=62.9%
C= 90 sec
-------------------------------------------------
G= 74.0 sec = 82.2% Y=16.0 sec = 17.8% Ped= 0.0 sec = 0 0%
Max Que:veh
Max Que: ft
MVMT TOTALS SB Approach WB Approach NB Approach EB Approach Int
Param:Units RT TH LT RT TH LT RT TH LT RT TH LT Total
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
AdjVol: vph 185 90 160 111 499 115 89 45 41 31 345 176 1887
Wid/Ln:ft/# 0/0 12/1 12/1 12/1 12/1 12/1 0/0 12/1 12/1 0/0 12/1 12/1
g/C Rqd@C:% 0 24 18 16 33 16 0 17 13 0 28 18
g/C Used: % 0 22 13 33 33 14 0 22 13 0 33 14
SV @E: vph 0 364 222 517 608 241 0 364 222 0 601 241 3380
----------- -------------- -------------- -------------- --------------
Svc Lvl:LOS D+ D+ C+ D+ D+ C C C D+ D+
Deg Sat:v/c 0.00 0.75 0.68 0.22 0.82 0.45 0.00 0.37 0.17 0.00 0.63 0.69 0.64
Avg Del:s/v 0.0 41.1 45.0 22.8 36.1 37.8 0.0 31.5 35.7 0.0 28.3 44.6 35 8
Tot Del:min 0 47 30 11 75 18 0 18 6 0 44 33 282
# Stops:veh 0 64 38 20 115 26 0 28 9 0 80 42 422
----------- -------------- -------------- -------------- --------------
Max Que:veh 0 11 7 4 17 5 0 5 2 0 13 8 72
Max Que: ft 0 272 175 95 425 125 0 132 45 0 320 191 425
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
-----------
-----------
SB Approach
WB Approach
NB Approach
Int
Total
APPR TOTALS
Param:Units
EB Approach
AdjVol: vph
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
435
725
175
1887
Svc Lvl:LOS
Deg Sat:v/c
Avg Del:s/v
Tot Del:min
# Stops:veh
552
D+
0.72
42.5
77
102
C
0.67
34.3
104
161
C
0.32
32.5
24
37
D+
0.64
35.8
282
422
C
0.65
33.5
77
122
,.,
u ----------- -------------- -------------- -------------- --------------
18
272
26
425
7
132
72
425
u
'1
u
21
320
-------------- -------------- -------------- --------------
-------------- -------------- -------------- --------------
-----
-----
r--,
u
n
BRUNO-YELM
YELM AVENUE & FIRST STREET
2002 PM PEAK HOUR VOLUMES WITHOUT PROJECT
u
n
08/07/00
16:00:44
Intersection #
o -
SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Input Worksheet
Appr Grade % Heavy Veh. Adj.Pkg Bus Pk.Hr.Factor Coni.Ped Actuated Arr.Type
-------------- ------- -------------- -------- -------- --------
% RT TH LT Loc Nm Nb RT TH LT peds/hr RT TH LT RT TH LT
-------------- ------- -------------- -------- -------- --------
SB 0.0 2.0 2.0 2.0 NO 0 0 0.92 0.92 0.92 0- Y Y Y 3 3 3
WB 0.0 2.0 2.0 2.0 NO 0 0 0.96 0.96 0.96 0- Y Y Y 3 3 3
NB 0.0 2.0 2.0 2.0 NO 0 0 0.93 0.93 0.93 0- Y Y Y 3 3 3
EB 0.0 2.0 2.0 2.0 NO 0 0 0.98 0.98 0.98 0- Y Y Y 3 3 3
-------------- ------- -------------- -------- -------- --------
u
n
u
I
153 I
12.0 II
1
II
\
+
\
II
II 63 44
12.0 12.0
" 1 1
n
209
0.0
o
86
12.0
1
u
------------- 1
r--,
u
-------------------
-------------------
186 12.0 1
1
n
371 12.0 1
u
44 0.0 0 \
n
u
n
u
n
u
n
u
n
u
Area Location Type: NONCBD
Key: VOLUMES -- >
I WIDTHS
v LANES
\
III 12.0 1
533 12.0 1
1/\
I
North
I
1
114 12.0 1
-------------------
-------------------
1
96
0.0
o
Phasing:
SEQUENCE
PERMSV N
OVERLP N
LEAD LAG
44
N N N
N N N
LD LD
r--,
Sq 44
**1**
Phase 3
-------------------------------------------------------------------------
Phase 6
Phase 1
Phase 2
Phase 4
Phase 5
-------------------------------------------------------------------------
u
I
I
I
I
I
I
I
I G/C=0.128
I G= 11.5"
Y+R= 4.0"
I OFF= 0.0%
G/C=0.143
G= 12.8"
Y+R= 4.0"
OFF=43.6%
*
* *
*
* *
n
11\
I
I
North
I
+ +>
: : I
*>
<* *
A
v
++++
v
A
****
u
<+
+
n
+
u
G/C=0.219
G= 19.7"
Y+R= 4.0"
OFF=17.2%
n
u
++++>
++++
v
:+++1
<****1
I
I
I
I
I
GIC=0.333
G= 30.0"
Y+R= 4.0"
OFF=62.3%
Glc=o.ooO
G= 0.0"
Y+R= 0.0"
OFF= 0.0%
GlC=O.OOO
G= 0.0"
Y+R= 0.0"
OFF= 0.0%
c= 90 see
-------------------------------------------------------------------------
n
G= 74.0 see = 82.2% Y=16.0 see = 17.8% Ped= 0.0 see = 0.0%
u
n
LJ
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,.-,
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08/07/00
16:00:44
n
BRUNO-YELM
YELM AVENUE & FIRST STREET
2002 PM PEAK HOUR VOLUMES WITHOUT PROJECT
u
,.-,
u SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Volume Adjustment Worksheet
Prop.of
LT RT
Adj
Flow
vph
Flow
Rate
vph
Lane
Group
n
Appr Mvt
-Mvt Vol
vph
PHF
LJ
==============================================
f1
U
o 0.00 0.00
300 0.00 0.69
166 1.00 0.00
207
93
166
190 0.92
86 0.92
153 0.92
SB-RT
SB-TH
SB-LT
TH+RT
LT
n ----------------------------------------------
116 0.00 1.00
555 0.00 0.00
119 1.00 0.00
116
555
119
RT
TH
LT
111 0.96
533 0.96
114 0.96
WB-RT
WB-TH
WB-LT
u
n
----------------------------------------------
o 0.00 0.00
141 0.00 0.67
68 1.00 0.00
94
47
68
87 0.93
44 0.93
63 0.93
NB-RT
NB-TH
NB-LT
L.J
TH+RT
LT
n
----------------------------------------------
o 0.00 0.00
424 0.00 0.11
190 1.00 0.00
LJ
45
379
190
44 0.98
371 0.98
186 0.98
EB-RT
EB-TH
EB-LT
TH+RT
LT
n
----------------------------------------------
L.J
,.-,
SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Saturation Flow Adjustment Worksheet
u
Adj
Sat-
flow
vphg
# Adjustment Factors
Ideal L -------------------------------------------------------
Satfl n Lane Heavy Bus Ar Lane Right Left Adj
pcphg - Width Vehs Grade Parkg Block Loc Util Turn Turn Fact
Lane
Group
Mvmts
Ap
pr
ch
n
u
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
n
TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.896 1.000 1 00 1670
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1 00 1770
SB-
SB-
LJ
-------------------------------------------------------------------------------
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.850 1.000 1.00 1583
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 1.000 1.00 1863
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
RT
TH
LT
WB-
WB-
WB-
,.-,
u
-------------------------------------------------------------------------------
TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.900 1.000 1.00 1676
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
,.-,
NB-
NB-
u
-------------------------------------------------------------------------------
TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.984 1.000 1 00 1833
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
EB-
EB-
,.-,
u
-------------------------------------------------------------------------------
n
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BRUNO-YELM
YELM AVENUE & FIRST STREET
2002 PM PEAK HOUR VOLUMES WITHOUT PROJECT
08/07/00
16:00:44
SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Capaeity Analysis Worksheet
Ap Lane LT Adj Adj Flow Green Lane V/C Crit
pr Group Phase Flow Satfl Ratio Ratio Group Ratio Lane
eh Mvts Type Rate Rate v/s g/C Capae v/e Grp
vph vphg vph
SB-
SB-
------------------------------------------------------------------
------------------------------------------------------------------
*
*
TH+RT
LT Pri.
300
166
1670
1770
0.180
0.094
0.219
0.128
366
226
0.820
0.735
RT
TH
LT
Pri.
116
555
119
1583
1863
1770
1676
1770
0.073
0.298
0.067
0.333
0.333
0.143
------------------------------------------------------------------
EB-
EB-
TH+RT
LT pri.
141
68
1833
1770
0.084
0.038
0.219
0.128
527
620
252
0.220
0.895
0.472
WB-
WB-
WB-
*
NB-
NB-
------------------------------------------------------------------
367
226
0.384
0.301
u
n ------------------------------------------------__________________
*
n
u
II
u
II
u
n
u
n
LJ
n
LJ
n
u
n
u
II
u
II
u
n
u
TH+RT
LT Pri.
424
190
0.231
0.107
0.333
0.143
610
252
0.695
0.754
TH+RT 0.820
LT 0.735
.219
.128
Cycle Length, C 90 see
Lost Time Per Cyele, L 16.0 see
------------------------------------------------------------------
Ye = Sum erit(v/s) 0.679
Xe = Ye x C/(C-L) 0.826
SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Level-of-Service Worksheet
Ap Lane Vol Green Unif Progr Lane Calib Iner Lane Lan
pr Group Ratio Ratio Delay Fact Group Term Delay Group Grp Appr Appr
ch Mvts v/e g/C dl PF Capae k d2 Delay LOS Delay LOS
sec/v vph see/v see/v see/v
SB-
SB-
------------------------------------------------------------------------------
------------------------------------------------------------------------------
D
D
------------------------------------------------------------------> 48.0
WB- RT 0.220 .333 21.6 1.00 527 0.110 0.21 21.8 C+
WB- TH 0.895 .333 28.5 1.00 620 0.418 15.59 44.1 D+
WB- LT 0.472 .143 35.5 1.00 252 0.110 1.40 36.9 D+
------------------------------------------------------------------> 39.8
NB- TH+RT 0.384 .219 30.0 1.00 367 0.110 0.67 30.6 C
NB- LT 0.301 .128 35.6 1.00 226 0.110 0.75 36.4 D+
------------------------------------------------------------------> 32.5
EB- TH+RT 0.695 .333 26.1 1.00 610 0.262 3.44 29.5 C
EB- LT 0.754 .143 37.1 1.00 252 0.308 12.15 49.2 D
33.4
37.8
1. 00
1.00
366 0.359
226 0.293
13.74
11. 75
47.2
49.5
D
D+
C
35.6 D+
------------------------------------------------------------------>
Cycle= 90" Duration=0.25 hours
Int Total 0.702 ================================================>
-----------
-----------
39.7 D+
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BRUNO-YELM
YELM AVENUE & FIRST STREET
2002 PM PEAK HOUR VOLUMES WITHOUT PROJECT
08/07/00
16:00:44
SIGNAL97/TEAPAC[Ver 1.02.12] - Evaluation of Intersection Performance
-------------------------------------------------
Sq 44
**/**
I
1
++++1
<****1
I
I
1
1
-------------------------------------------------
1 G/C=0.128 I G/C=0.219 1 G/C=0.143 1 G/C=0.333 I
I G= 11.5" 1 G= 19.7" I G= 12.8" G= 30.0" I
Y+R= 4.0" Y+R= 4.0" Y+R= 4.0" 1 Y+R= 4.0" 1
I OFF= 0.0% 1 OFF=17.2% I OFF=43.6% 1 OFF=62.3% 1
Phase 1
1 Phase 4
1
I
I
++++1
v 1++++>
1++++
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/1\
1
1
North
1
*>
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^
****
<+
+
+
+ +>
+ + I
+ + 1
-------------------------------------------------
C= 90 sec
G= 74.0 sec = 82.2% Y=16.0 sec = 17.8% Ped= 0.0 sec = 0.0%
MVMT TOTALS SB Approach WE Approach NB Approach EB Approach Int
param:Units RT TH LT RT TH LT RT TH LT RT TH LT Total
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
AdjVol: vph 207 93 166 116 555 119 94 47 68 45 379 190 2079
Wid/Ln:ft/# 0/0 12/1 12/1 12/1 12/1 12/1 0/0 12/1 12/1 0/0 12/1 12/1
g/C Rqd@C:% 0 26 18 17 36 16 0 17 14 0 30 19
g/C Used: % 0 22 13 33 33 14 0 22 13 0 33 14
SV @E: vph 0 364 211 527 620 239 0 365 211 0 610 239 3386
----------- -------------- -------------- -------------- --------------
Svc Lvl:LOS D D C+ D+ D+ C D+ C D D+
Deg Sat:v/c 0.00 0.82 0.74 0.22 0.89 0.47 0.00 0.38 0.30 0.00 0.69 0.75 0.70
Avg Del:s/v 0.0 47.6 49.8 22.5 46.6 38.2 0.0 31.7 37.3 0.0 29.6 49.3 40.6
Tot Del:min 0 59 34 11 108 19 0 19 11 0 52 39 352
# Stops:veh 0 71 40 21 132 27 0 30 15 0 92 46 474
----------- -------------- -------------- -------------- --------------
Max Que:veh 0 12 7 4 19 5 0 6 3 0 14 8 78
Max Que: ft 0 296 183 98 468 129 0 139 75 0 358 206 468
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
APPR TOTALS
param:Units
Int
Total
NB Approach
EB Approach
SB Approach
WE Approach
-----------
-----------
-------------- -------------- -------------- --------------
-------------- -------------- -------------- --------------
-----
-----
AdjVol: vph
466
790
209
2079
614
----------- -------------- -------------- -------------- --------------
Svc Lvl:LOS
Deg Sat:v/c
Avg Del:s/v
Tot Del:min
# Stops:veh
D+
0.73
41.8
138
180
C
0.36
33.5
30
45
D+
0.70
40.6
352
474
D+
0.71
35.7
91
138
D
0.79
48.4
93
111
----------- -------------- -------------- -------------- --------------
Max Que:veh 19 28 9 22 78
Max Que: ft 296 468 139 358 468
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
rl
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II
BRUNO-YELM
YELM AVENUE & FIRST STREET
2002 PM PEAK HOUR VOLUMES WITH PROJECT
08/07/00
16:03 50
u
II
SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Input Worksheet
o -
Area Location Type NONCBD
u
n
Intersection #
u
rl
u
rl
209
0.0
o
Key: VOLUMES -- >
I WIDTHS
v LANES
\
111 12.0 1
I
11\
I
North
I
533 12.0 1
-------------------
-------------------
-------------------
-------------------
Appr Grade % Heavy Veh. Adj.Pkg Bus Pk.Hr.Factor Conf.Ped Actuated Arr.Type
-------------- ------- -------------- -------- -------- --------
% RT TH LT Loc Nm Nb RT TH LT peds/hr RT TH LT RT TH LT
-------------- ------- -------------- -------- -------- --------
SB 0.0 2.0 2.0 2.0 NO 0 0 0.92 0.92 0.92 0- Y Y Y 3 3 3
WB 0.0 2.0 2.0 2.0 NO 0 0 0.96 0.96 0.96 0- Y Y Y 3 3 3
NB 0.0 2.0 2.0 2.0 NO 0 0 0.93 0.93 0.93 0- Y Y Y 3 3 3
EB 0.0 2.0 2.0 2.0 NO 0 0 0.98 0.98 0.98 0- Y Y Y 3 3 3
-------------- ------- -------------- -------- -------- --------
u
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Sq 44
**1**
LJ
II
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1
u
rl
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II
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n
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u
II
u
186 12 0 1
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136 12.0 1
371 12.0 1
I
74 0.0 0 \
113
0.0
o
Phasing: SEQUENCE 44
PERMSV N N N N
OVERLP N N N N
LEAD LAG LD LD
Phase 1
Phase 2
Phase 6
Phase 3
Phase 4
Phase 5
I
I
1
I
I
I
I
-------------------------------------------------------------------------
G/C=0.127 G/C=0.222 G/C=0.142 G/C=0.331 1 G/C=O.OOO 1 G/C=O.OOO I
G= 11.4" G= 20 . 0" G= 12 . 8" G= 29 . 8" I G= 0 . 0" I G= 0 . 0" I
Y+R= 4.0" Y+R= 4.0" Y+R= 4.0" Y+R= 4.0" Y+R= 0.0" Y+R= 0.0"
OFF= 0.0% OFF=17.2% OFF=43.8% OFF=62.4% I OFF= 0.0% I OFF= 0 0% 1
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C= 90 see
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BRUNO-YELM
YELM AVENUE & FIRST STREET
2002 PM PEAK HOUR VOLUMES WITH PROJECT
08/07/00
16:03:50
II
U SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Volume Adjustment Worksheet
U
Appr Mvt
-Mvt Vol
vph
PHF
II
Flow
Rate
vph
Adj
Flow
vph
Prop.of
LT RT
Lane
Group
----------------------------------------------
----------------------------------------------
II
SB-RT
SB-TH
SB-LT
u
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WB-LT
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NB-RT
NB-TH
NB-LT
II
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EB-RT
EB-TH
EB-LT
n
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190 0.92
94 0.92
153 0.92
111 0.96
533 0.96
136 0.96
104 0.93
50 0.93
85 0.93
74 0.98
371 0.98
186 0.98
207
102
166
TH+RT
LT
o 0.00 0.00
309 0.00 0.67
166 1.00 0.00
116
555
142
RT
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116 0.00 1.00
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112
54
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76
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190
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SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Saturation Flow Adjustment Worksheet
U
II
Ap
pr
ch
u
Lane
Group
Mvmts
# Adjustment Factors
Ideal L -------------------------------------------------------
Satfl n Lane Heavy Bus Ar Lane Right Left Adj
pcphg - Width Vehs Grade Parkg Block Loc Util Turn Turn Fact
Adj
Sat-
flow
vphg
II
SB-
SB-
===============================================================================
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TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.900 1.000 1.00 1676
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
-------------------------------------------------------------------------------
II
WB-
WB-
WB-
u
RT
TH
LT
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.850 1.000 1.00 1583
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 1.000 1.00 1863
1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
n
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NB-
NB-
-------------------------------------------------------------------------------
n
I
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EB-
TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.899 1.000 1.00 1674
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
TH+RT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 0.975 1.000 1.00 1816
LT 1900 1 1.000 0.980 1.000 1.000 1.000 1.0 1.00 1.000 0.950 1.00 1770
-------------------------------------------------------------------------------
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BRUNO-YELM
YELM AVENUE & FIRST STREET
2002 PM PEAK HOUR VOLUMES WITH PROJECT
08/07/00
16:03:50
SIGNAL97/TEAPAC[Ver 1.02.12] - 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 v/s g/C Capac v/c Grp
vph vphg vph
------------------------------------------------------------------
------------------------------------------------------------------
SB-
SB-
TH+RT
LT Pri.
309
166
1676
1770
0.184 0.222
0.094 0.127
372 0.831
225 0.738
*
*
------------------------------------------------------------------
WB- RT 116 1583 0.073 0.331 524 0.221
WB- TH 555 1863 0.298 0.331 617 0.900 *
WB- LT pri. 142 1770 0.080 0.142 251 0.566
NB-
NB-
TH+RT
LT Pri.
166
91
1674
1770
0.099 0.222
0.051 0.127
372 0.446
225 0.404
EB-
EB-
TH+RT
LT Pri.
455
190
1816
1770
0.251 0.331
0.107 0.142
601 0.757
251 0.757
*
Cycle Length, C 90 see
Lost Time Per Cycle, L 16.0 see
Yc = Sum crit(v/s) 0.684
Xc = Yc x C/(C-L) 0.831
SIGNAL97/TEAPAC[Ver 1.02.12] - HCM Level-of-Service Worksheet
Ap Lane Vol Green Unif progr Lane Calib Incr Lane Lan
pr Group Ratio Ratio Delay Fact Group Term Delay Group Grp Appr Appr
ch Mvts v/c g/C d1 PF Capac k d2 Delay LOS Delay LOS
sec/v vph sec/v sec/v sec/v
------------------------------------------------------------------------------
------------------------------------------------------------------------------
SB-
SB-
TH+RT 0.831
LT 0 . 738
.222 33.4 1.00
.127 37.8 1.00
372 0.368 14.65
225 0.295 12.07
D
D
48.0
49.9
------------------------------------------------------------------> 48.7
WB- RT 0.221 .331 21.7 1.00 524 0.110 0.21 21.9 C+
WB- TH 0.900 .331 28.7 1.00 617 0.422 16.21 44.9 D+
WB- LT 0.566 .142 36.0 1.00 251 0.161 2.97 39.0 D+
______________________________________________________------------> 40.6
NB- TH+RT 0.446 .222 30.2 1.00 372 0.110 0.85 31.1 C
NB- LT 0.404 .127 36.1 1.00 225 0.110 1.19 37.3 D+
______________________________________________________------------> 33.3
EB- TH+RT 0.757 .331 26.9 1.00 601 0.311 5.52 32.4 C
EB- LT 0.757 .142 37.1 1.00 251 0.310 12.45 49.6 D
D
D+
C
------------------------------------------------------------------>
Cycle= 90" Duration=0.25 hours
Int Total 0.723 ================================================>
37.5 D+
-----------
-----------
40 6 D+
,...-,
LJ
n
LJ
n
BRUNO-YELM
YELM AVENUE & FIRST STREET
2002 PM PEAK HOUR VOLUMES WITH PROJECT
08/07/00
16:03:50
LJ SIGNAL97/TEAPAC[Ver 1.02.12] - Evaluation of Intersection Performance
n
LJ
n
L.J
n
LJ
n
LJ
n
L.J
,...-,
LJ
n
u
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u
,...-,
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LJ
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u
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-------------------------------------------------
Sq 44 Phase 1 Phase 2 I Phase 3 I Phase 4 I
**/** -------------------------------------------------
* * * I I ^ I
* * * I I ++++1
/1\ *> <* * I <****1
I ^ ++++1 I
v
I ^ 1**** 1++++> I
v
North <+ + +>
I + + + I 1++++ I
+ + + I I v I
-------------------------------------------------
G/C=0.127 G/C=0.222 G/C=0.142 I G/C=0.331 I
G= 11.4" G= 20.0" G= 12.8" G= 29.8" I
Y+R= 4.0" Y+R= 4.0" Y+R= 4.0" Y+R= 4.0" I
OFF= 0.0% OFF=17.2% OFF=43.8% OFF=62.4% I
-------------------------------------------------
C= 90 sec G= 74.0 sec = 82.2% Y=16.0 sec = 17.8% Ped= 0.0 sec = 0.0%
MVMT TOTALS SB Approach WB Approach NB Approach EB Approach Int
param:Units RT TH LT RT TH LT RT TH LT RT TH LT Total
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
AdjVol: vph 207 102 166 116 555 142 112 54 91 76 379 190 2190
Wid/Ln:ft/# 0/0 12/1 12/1 12/1 12/1 12/1 0/0 12/1 12/1 0/0 12/1 12/1
g/C Rqd@C:% 0 26 18 17 36 17 0 19 15 0 32 19
g/C Used: % 0 22 13 33 33 14 0 22 13 0 33 14
SV @E: vph 0 370 210 524 617 238 0 370 210 0 601 238 3378
----------- -------------- -------------- -------------- --------------
Svc Lvl:LOS D D C+ D+ D+ C D+ C D D+
Deg Sat:v/c 0.00 0.83 0.74 0.22 0.90 0.57 0.00 0.45 0.40 0.00 0.76 0.76 0.72
Avg Del:s/v 0.0 48.7 50.2 22.6 47.9 40.0 0.0 32.3 38.5 0.0 32.0 49.7 41.6
Tot Del:min 0 63 35 11 111 24 0 22 15 0 61 39 381
# Stops:veh 0 74 40 21 132 33 0 36 21 0 102 46 505
----------- -------------- -------------- -------------- --------------
Max Que:veh 0 12 7 4 19 6 0 6 4 0 15 8 81
Max Que: ft 0 304 183 98 470 154 0 163 100 0 385 206 470
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
APPR TOTALS
param:Units
Int
Total
SB Approach
WB Approach
NB Approach
EB Approach
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
AdjVol: vph
475
813
257
645
2190
----------- -------------- -------------- -------------- --------------
Svc Lvl:LOS
Deg Sat:v/c
Avg Del:s/v
Tot Del:min
# Stops:veh
D+
0.75
42.9
146
186
C
0.43
34.5
37
57
D+
0.76
37.2
100
148
D+
0.72
41.6
381
505
D
0.80
49.2
98
114
LJ ----------- -------------- -------------- -------------- --------------
19
304
29
470
10
163
81
470
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23
385
Max Que:veh
Max Que: ft
----------- -------------- -------------- -------------- -------------- -----
----------- -------------- -------------- -------------- -------------- -----
,..,
HCS Unsignalized Intersections Release 3 Ib
LJ
TWO-WAY STOP CONTROL(TWSC) ANALYSIS
<1U1alyst
Intersection
LCount Date
Time Period
"
Intersection Orientation North-South Major St
SR-507 & Residential Entrance
U
Vehicle volume Data
':~ovements 2 3 4 5 7 9
I
LJ----------------------------------------------------------------------------------------------
Volume 228 9 35 269 5 20
HFR 253 10 39 299 6 22
iPH F 0 90 0 90 0 9 0 0 90 0 90 0 90
PHV 0 2 0 0 10 0 10 0 2 0 0 10 0 10
L-L______________________________________________________________________________________________
'l .
?edestrlan Volume Data
U
Movements
11_______________________________________________________________________________________________
I
I Flow
Ll..ane width
Walk speed
I~ Blockage
L!VIedian Type
# of vehicles
TWLTL
3
n.
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U
# of vehicles Eastbound 0
# of vehicles Westbound 0
II
LLane usage for movements
Lane 1
~ L T R
1 , 2 &3 approach
Lane 2
L T
R
L
Lane 3
T
R
-----------------------------------------------------------------------------------------------
LJ N Y N N N N N N N
.\=hannelized N
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LJ
Lane usage for movements 4,5&6 approach
" Lane 1 Lane 2 Lane 3
L T R L T R L T R
LJ_______________________________________________________________________________________________
N Y N N N N N N N
n
':hannelized N
L8rade 0 00
"
_lane usage for movements 7,8&9 approach
U Lane 1 Lane 2 Lane 3
L T R L T R L T R
-----------------------------------------------------------------------------------------------
" Y
N Y N N N N N N
N
0 00
for movements 10,11&12 approach
Lane 1 Lane 2 Lane 3
T R L T R L T R
L~:hannelized
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----------------------------------------------------------------------------------------------
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LJ
"Data for Computing Effect of Delay to Major Street Vehicles
----------------------------------------------------------------------------------------------
Shared In volume, major th vehicles
"Shared In volume, major rt vehicles
Sat flow rate, major th vehicles
LJSat flow rate, major rt vehicles
Number of major street through lanes
Northbound
o
o
1700
1700
1
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o
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1700
1700
1
u
"
LJLength of study period, hrs
o 25
-----------------------------------------------------------------------------------------------
"
INorksheet 4 Critical Gap and Follow-up time calculation
U
Critical Gap Calculations
,,1"Iovement 4 7 9
-----------------------------------------------------------------------------------------------
ut c,base 4 1 7 1 6 2
t c,hv 1 0 1 0 1 0
f> hv 0 10 0 10 0 10
lit c,g 0 2 0 1
e 0 00 0 00 0 00
UJ
t 3, It 0 0 0 7 0 0
t c,T
" 1 stage 0 00 0 00 0 00
2 stage 0 00 1 00 0 00
Ut c
1 stage 4 2 6 5 6 3
" 2 stage 4 2 5 5 6 3
LJ Follow Up Time Calculations
l\1ovement 4 7 9
------------------------------------------------------------------------------
"t f, base 2 2 3 5 3 3
LJt f,HV 0 9 0 9 0 9
P hv 0 10 0 10 0 10
tf 23 36 34
'1-----------------------------------------------------------------------------------------------
UWorksheet 6 Impedance and capacity equations
"Step 1 RT from Minor St
9
12
-----------------------------------------------------------------------------------------------
UConflicting Flows 258
Potential Capacity 761
Pedestrian Impedance Factor 1 00
'!Movement Capacity 761
,Probability of Queue free St 0 97
LJ_____________________________________________________------------------------------------------
"Step 2 LT from Major St
4
1
LJConflicting Flows
Potential Capacity
"pedestrian Impedance Factor
Movement Capacity
LJProbability of Queue free St
263
1256
1 00
1256
o 97
------------------------------------------------------------------------------
"
LJworksheet 7a - Computation of the effect of Two-stage gap acceptance
Step 3 TH from Minor St 8 11
r,Part 1- First Stage
------------------------------------------------------------------------------------
LJConflicting Flows
Potential Capacity
"Pedestrian Impedance Factor
Cap Adj factor due to Impeding mvrnnt
LJMovement Capacity
Probability of Queue free St
258
698
1 00
1 00
698
1 00
377
619
1 00
o 97
600
1 00
-----------------------------------------------------------------------------------------------
"
U
rJpart 2- Second Stage
LJ~~,~~~~~~~~;-;~~~~--------------------------------;;;--------------;~;--------------------------
Potential Capacity 619 694
r;Pedestrian Impedance Factor 1 00 1 00
Cap Adj factor due to Impeding mvmnt 0 97 1 00
LMovement Capacity 600 694
n .
Part 3- Slngle Stage
LJ- ---------------------------------------------------------------------------------------------
Conflicting Flows 635 640
Potential Capacity 399 396
rpedestrian Impedance Factor 1 00 1 00
L'cap Adj factor due to Impeding mvmnt 0 97 0 97
kovement Capacity 386 384
G~ t
, I
LJProbability of Queue free St
n
Result for 2 stage process
LJ- -------------------------------------------------------------________________________________
o 97 0 97
1 46 0 80
553 544
1 00 1 00
a
'1
Uworksheet 7b - Computation of the effect of Two-stage gap acceptance
Step 4 LT from Minor St
"Part 1- First Stage
7
10
-----------------------------------------------------------------------------------------------
~Conflicting Flows
Potential Capacity
"Pedestrian Impedance Factor
Cap Adj factor due to Impeding mvmnt
LJMovement Capacity
258
767
1 00
1 00
767
377
698
1 00
o 97
677
------~--------------------------------------------------------------------------~-------------
npart 2- Second Stage
-----------------------------------------------------------------------------------------------
Uconflicting Flows
Potential Capacity
rPedestrian Impedance Factor
'Cap Adj factor due to Impeding mvmnt
LtJlovement Capacity
377
677
1 00
o 97
656
269
780
1 00
o 97
758
-----------------------------------------------------------------------------------------------
'---'part 3- Single Stage
LJ-----------------------------------------------------------------------------------------------
Conflicting Flows 635 646
Potential Capacity 430 439
"Pedestrian Impedance Factor 1 00 1 00
~laj L, Min T Impedance factor 0 97 0 97
L'~laj L, Min T Adj Imp Factor 0 98 0 98
Cap Adj factor due to Impeding mvmnt 0 98 0 95
,~1ovement Capacity 420 416
----------------------------------------------------------------------------------------------
U
Result for 2 stage process
"
a
.-----------------------------------------------------------------------------------------------
ul
C t
o 97
1 47
604
o 97
o 86
604
-----------------------------------------------------------------------------------------------
"
LWorksheet 8 Shared Lane Calculations
,Shared Lane Calculations
Movement 7 8 9 10 11 12
LJ-----------------------------------------------------------------------------------------------
1------ ------11 I
I " I
I II I
"
i
~(~h) 6
Movement Capacity 604
Shared Lane Capacity 724
'1-----------------------------------------------------------------------------------------------
22
761
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,---,
L.;Worksheet 10 delay,queue length, and LOS
Movement 1
,---,- - - - - - - - - - - - - - - - - - - - - - - - - - - -
4
7
8
9
10
11
12
-------------------------------------------------------------------
1------
I
I
------11
II
II
LJ
iIV(vph)
C m(vph)
LN/C
95% queue length
Control Delay
"LOS
l.JP,pproach Delay
J\pproach LOS
39
1256
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28
724
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8 0
A
10 2
B
10 2
B
-----------------------------------------------------------------------------------------------
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HCS Unsignalized Intersections Release 3 Ib
LJ
TWO-WAY STOP CONTROL(TWSC) ANALYSIS
'\nalyst
Intersection SR-507 & Conv Mart Entrance
LCount Date
Time Period
,---,
Intersection Orientation North-South Major St
U
Vehicle Volume Data
,---,
~ovements 2 3 4 5 7 9
LJ-----------------------------------------------------------------------------------------------
Volume 183 26 51 223 32 45
HFR 203 29 57 248 36 50
r-oHF 0 90 0 90 0 90 0 90 0 90 0 90
OHV 0 20 0 10 0 10 0 20 0 10 0 10
LL____________________________________________________------------------------------------------
[1
cedestrian Volume Data
LJ
f\llovements
n
---------~-------------------------------------------------------------------------------------
Uf"low
Lane width
"ralk speed
I~: Blockage
L:Vledian Type
#= of vehicles
n
f'lared approach
LJ
# of vehicles
# of vehicles
,---,
TWLTL
3
Movements
Eastbound
Westbound
o
o
LJ
Lane usage for movements
Lane 1
,---, L T 'R
1,2&3 approach
Lane 2
L T
R
L
Lane 3
T
R
----------------------------------------------------------------------------------------------
u
Y N N N N N N N
N
0 00
for movements 4,5&6 approach
Lane 1 Lane 2 Lane 3
T R L T R L T R
U N
iFhannelized
:;rade
,iJane usage
LJ
L
----------------------------------------------------------------------------------------------
N Y N N N N N N N
I
:hannelized N
LGrade 0 00
I
....Jane usage for movements 7,8&9 approach
L) Lane 1 Lane 2 Lane 3
L T R L T R L T R
-----------------------------------------------------------------------------------------------
r-I Y
LChannelized
Grade
N
Y
N
N
N
N
N
N
N
o 00
'I
LLane usage for movements
Lane 1
T
fi
1-----------------------------------------------------------------------------------------------
LI N N N N N N N N N
L
R
10,11&12 approach
Lane 2
T
L
R
L
Lane 3
T
R
Channelized N
II
u
r--1
:::rade
o 00
u
~Data for Computing Effect of Delay to Major Street Vehicles
U
Shared In volume, major th vehicles
,Shared In volume, major rt vehicles
Sat flow rate, major th vehicles
L-5at flow rate, major rt vehicles
Number of major street through lanes
"
Northbound
o
o
1700
1700
1
Southbound
o
o
1700
1700
1
L.,~ength of study period, hI'S
o 25
"
\
~orksheet 4 Critical Gap and Follow-up time calculation
LJ
Critical Gap Calculations
,l'1ovement 4 7 9
Lt c,base 4 1 7 1 6 2
t c,hv 1 0 1 0 1 0
P hv 0 10 0 10 0 10
r--1 0 2 1
t c,g 0
r> 0 00 0 00 0 00
LJ'
t 3, It 0 0 0 7 0 0
t c,T
"1 stage 0 00 0 00 0 00
2 stage 0 00 1 00 0 00
Ut c
1 stage 4 2 6 5 6 3
,,2 stage 4 2 5 5 6 3
L.,Follow Up Time Calculations
Movement 4 7 9
"t. f. base 2 2 3 5 3 3
LF f,HV 0 9 0 9 0 9
P hv 0 10 0 10 0 10
t.f 23 36 34
r--1-------------------------------------------------------________________________________________
Lvlorksheet 6 Impedance and capacity equations
,ptep 1 RT from Minor St
9
12
L.,Conflicting Flows 218
Potential Capacity 802
Pedestrian Impedance Factor 1 00
~r10vement Capacity 802
Probability of Queue free St 0 94
~--------------------------------------------------------------------------------
'Step 2 LT from Major St
4
1
L-Conflicting Flows
Potential Capacity
"pedestrian Impedance Factor
~ovement Capacity
LProbability of Queue free St
232
1290
1 00
1290
o 96
'I
. Worksheet 7a - Computation of the effect of Two-stage gap acceptance
LI
Step 3 TH from Minor St 8 11
~?art 1- First Stage
i- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
~Conflicting Flows 218 361
Potential Capacity 726 629
"pedestrian Impedance Factor 1 00 1 00
Cap Adj factor due to Impeding mvmnt 1 00 0 96
L,Movement Capacity 726 602
Probability of Queue free St 1 00 1 00
"
u
n
~art 2- Second Stage
LI - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Conflicting Flows 361 232
Potential Capacity 629 716
~?edestrian Impedance Factor 1 00 1 00
:::ap Adj factor due to Impeding mvrnnt 0 96 1 00
Ll~ovement Capacity 602 716
Conflicting Flows
,-fotential Capacity
Pedestrian Impedance
L;:::ap Adj factor due
Movement Capacity
Factor
to Impeding mvrnnt
- --------~------------------------------------------------------------------------------------
n
~esult for 2 stage process
LJ_ ________________________________________________________________________________
a
o 97
1 65
563
1 00
o 97
o 78
550
1 00
,".,
::: t
~o~cobability of Queue free St
--------------------------------------------------------------------------------------------~--
n
LJNorksheet 7b - Computation of the effect of Two-stage gap acceptance
Step 4 LT from Minor St
("?art 1- First Stage
7
10
------------------------------------------------------------------------------------------
LConflicting Flows
Potential Capacity
r-pedestrian Impedance Factor
:::ap Adj factor due to Impeding mvrnnt
~~ovement Capacity
218
800
1 00
1 00
800
361
710
1 00
o 96
678
-----------------------------------------------------------------------------------------------
,..,
?art 2- Second Stage
LJ-----------------------------------------------------------------------------------------------
Conflicting Flows 361 243
Potential Capacity 688 802
r-Pedestrian Impedance Factor 1 00 1 00
:::ap Adj factor due to Impeding mvrnnt 0 96 0 94
L~ovement Capacity 658 752
-----------------------------------------------------------------------------------------------
n
~art 3- Single Stage
LJ ----------------------------------------------------------------------------------------------
Conflicting Flows 579 604
Potential Capacity 464 465
",ledestrian Impedance Factor 1 00 1 00
, (laj L, Min T Impedance factor 0 96 0 96
LMaj L, Min T Adj Imp Factor 0 97 0 97
Cap Adj factor due to Impeding mvrnnt 0 97 0 91
~"ovement Capacity 449 421
-------------------------------------------------------------------------------
LJ
Result for 2 stage process
,,-----------------------------------------------------------------------------------------------
, 0 97 0 97
L:1 1 68 0 94
C t 616 599
-------------------------------------------------------------------------------
,---,
LWorksheet 8 Shared Lane Calculations
,'3hared Lane Calculations
,~ovement 7 8 9 10 11 12
LJ-------------------------------------------------_____________________________________________
1------ ------11 I
I II I
I II I
r-I
I
L? (vph) 36
Movement Capacity 616
Shared Lane Capac it y 713
,-c______________________________________________________________________________________________
50
802
LJ
II
uworksheet 10 delay,queue length, and LOS
Movement 1 4 7 8 9 10 11 12
rj--------------------------------------------------------------------------------------------- -
1------ ------1 I I
U I II I
I II I
nV (vph)
C m (vph)
uv/c
95% queue length
Control Delay
'1LOS
I
UApproach Delay
Approach LOS
57
1290
o 04
86
713
o 12
7 9
A
10 7
B
10 7
B
II
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lEFT TURN STORAGE GUIDELINES
Unsignalized intersection
Two - lane highway
25
20
10
300
400
00
600
700
800
Total DHV-
-OHV is total volume from both directions.
-.Speeds ore posted speed limits
5'R - 507 k C.OtVIMerc ,q I E n+r"lI1Ce
Totql
P/..fJ.
~83
KEY~
D
~
900
Be'low curve,
storoge not
needed for
capacity
Above curve,
storage
recommendeo
1000
1200
LT'7;
5'1/ :::
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5.5 rv1fh
1100
10056 70
5pe.eJ L;,,^,+ '
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LEFT TURN STORAGE GUIDELINES
Unsignolized intersection
Two - lone highway
25
~
KEY~
D5
10
400
500
600
800
700
900
Total OHV.
-OHV is total volume from both directions.
--Speeds ore posted speed limits
5 R - 507
~ ResIJent-;"l1 Entrqf)ce
Totq 1
DHY:
5t.tl
LT%
3~L11 = b.'17~
5fee~
L:Mlt. 55 MfA
Beiow curve.
storage not
needed for
capacity
Above curve,
storage
recommended
1000
1100
1200