TIA 01-28-052~~ rr ls~.r
E n+qd L
Transportation Engineering Northwest Traffic Impact
Analvcic
DATE: January 18, 2005
TO: Grant Beck, Community Development Director
Jim Gibson, Development Services Engineer
FROM: Jeff Schramm, Transportation Engineering North West
RE: Traffic Impact Analysis -Burnett Commercial Park Development
TENW Protect No. 2421
This traffic impact analysis has been prepared for the proposed Burnett Commercial Park
development. To analyze the traffic impacts of the proposed development, the following
tasks were undertaken:
• Described the proposed development;
• Assessed existing traffic volumes and intersection LOS at the intersection of Yelm
Avenue (SR-510) and Burnett Road for weekday PM peak hour conditions;
• Estimated trip generation and documented distribution of project traffic;
• Documented future without-project traffic forecasts and assumptions;
Evaluated intersection LOS at the Yelm Avenue (SR-510) / Burnett Road
intersection for weekday PM peak hour conditions;
Determined City transportation mitigation fees.
Project Description
Build out of the proposed development would occur over 2 phases. Phase I would consist
of 70,000 square feet of mini-storage space, and Phase II would be a mixed-used
development consisting of about 5,500 square feet of office space on the bottom floor with
4 apartments on the top floor. The project site would be located on the east side of
Burnett Road in Yelm, Washington. Vehicular access is proposed via one driveway on
Burnett Road. Full build-out of the project is expected by year 2006. A project site vicinity
map is shown in Figure 1, and a preliminary site plan is shown in Figure 2.
Existing Traffic Volumes
All Traffic Data Services, Inc. conducted weekday PM peak hour traffic volumes in
January 2005 between the 3:00 and 6:00 p.m. at the Yelm Avenue (SR-510) / Burnett
Road study intersection. The PM peak hour occurred between 4:45 and 5:45 p.m.
Figure 3 illustrates the 2005 PM peak hour traffic volumes at the study intersection.
Appendix A provides the detailed traffic count sheets.
Transportation Engineering/Operazions .Impact Studies ~ Detign Services . 7ransporGNOn Planning/FOrewtting
16625 Redmond Wag Suite M, PMO 323 r Retlmond, WA 98052 r O((ice (206) 396~B286 r Fax (915) RR5~14R]
Transportation Engineering Northwest Page 2
Pndcoun ~^ Mud R.m 0.d
a6iL Lu SE
SIO
BBJ~ Avu SE
89th Ave SE
Piaitle Vlrta LOOU
Project
Site
s
93rd Ave SE
r -
/., q`^ m U
ti o
oa d"`R
510 (?
^~`
Iterry Volley Rd
J
A S
~/~P t ~~
~ case
;Not m 6celel
Transportation Burnett
Engineering FlgUre ~ Commercial Park
Northwest, LLC Project Site Vicinity Yelm, WA
in(1' Impx~NWph
Transportation Engineering/Operations ~ Impact Studies ~ Detlgn Services •Transportalion Planning/Forecasting
16625 Redmond Wag Suire M, PMB 327 r Retlmonq WA 98052 r O((ice (206) 396-8286 ~ Fax (425) 885-1987
Transportation Engineering Northwest
Page 3
i l~___~______________
________________________~____________r
[ r
t [ _. - t
t t [
I [ t
t r [
[ t [
t t [
t [
I ~~
r--- .,
:I `.,
,.
,,
[
;~
t-
tE [
t' I
sm t
s [
t
t [
t t
[ t
I !
.~
~ rte-°----
wouo scare>
[
[
[
A
[
t
Transportation Burnett
Engineering Figure 2 Commercial Park
NorchWes[, LLC Project Site Pian Yelm, WA
Transportation Engineering/Opera[iont Impact S[udies r Detign Services r Transporta[ion Planning/Forecas[ing
16625 Redmond Way, Suite M, PMB 323 ~ Redmonq WA 98052 r O!(ice (206) 396-8286 ~ Fax (425) 885-198]
Transportation Engineering Northwest Page a
Pn,cOp+In MuB Fvn 0.\
86th lu SE
510
Barb Ave SE
e9tl~ A~.e SE
Pwlrie Vlsm hoop
Project d
Site
3
E
93rd Ave SE
Ln / a _`u
Hpp Y V
`? o
`~ 4 "e` p
510 d
oa°\c
Perry Valley R4 S
o >y
~~~ a p3
~aF
iNtl: ro 6re1e1
Fi ure 3 Boroe1
(\n Transpor~ition g Commercial Park
V~J Engineering 2005 Existing PM Peak Hour Yelm, WA
North West, LLC Traffic Volumes
IulM lnin+cl M9yfb
$R 510/Yelni A+y
&nnea Road
~b ~ y
O
^~ I I
y l L
t
ry
R
a
LantporGtion Engineering/Operations r Impact Smdiet ~ Design Services r Transportation Planning/Forerasling
16625 Redmond Way, Suite M, PMB 323 r Redmontl, WA 98052 r O((ice (106) 396~B286 ~ Fax (925) BBS-14BJ
Transportation Engineering Northwest Page 5
Existing Intersection Level of Service (LOS)
Level of service (LOS) serves as an indicator of the quality of traffc Flow and degree of
congestion at an intersection or roadway segment. It is a measure of vehicle operating
speed, travel time, travel delays, and driving comfort. Level of service is generally
described by a letter scale from A to F. LOS A represents free-flow conditions, i.e.
motorists experience little or no delays, and LOS F represents forced-flow conditions.
Table 1 summarizes the delay range for each level of service at unsignalized
intersections. The methods used to calculate the levels of service are described in the
Highway Capacity Manual (Special Report 209, Transportation Research Board, 2000).
The LOS at stop-controlled intersections is based on the average control delay (sec/veh)
and is reported for each movement.
Table 1.
LOS Criteria for Unsignalized Intersections
Unsienalized Intersection
Level of Service Dela ~ Ran a sec
A <10
6 >10 ro 15
C >7 5 to 25
D >25 to 35
E >35 to 50
F >50
Source: °I Ilghwav Copuci~y Mnnual". Spcciol Report 209, Trnnsponeiion Research BmN, ]000
Intersection LOS were calculated using the methodology and procedures outlined in the
2000 Highway Capacity Manual, Special Report 209, Transportation Research Board
using the software program Hiohwav Caoacitv for unsignalized intersections.
The methodology used in the year 2005 LOS analysis is consistent with an article
published in the Westernite Journal entitled Mysteries of fhe PHF, Ransford S McCourt
and Dennis Strong, November-December 2002. The article discusses the methodologies
associated with the Highway Capacity Manual's (HCM) recommendations regarding the
use peak hour factors. It also outlines some basic 'how to's" associated with appropriate
methods for applying peak hour factors for signalized and unsignalized capacity analysis.
This method establishes the peak 15-minute period of the overall intersection, and then
takes those peak 15-minute traffic volumes by movement and multiplies them by 4. In this
case, the peak hour factor (PHF) is equal to 1.0.
Existing weekday PM peak hour LOS analysis results for the study intersection are
summarized in Table 2, Detailed LOS summary worksheets are provided in Appendix B.
As shown in Table 2, all controlled movements at the unsignalized intersection of Yelm
Avenue (SR-510) / Burnett Road currently operate at LOS C or better during the PM peak
hour.
Transportation Engineering/Opermions ~ Imuact Studies r Design Services r Transportation Planning/Forecasting
16625 Redmond Way, Suite M, PMB 32J r Redmonq WA 98052 ~ O(fice (106) 396~B286 r Fax (425) 885~14B7
Transportation Engineering Northwest Page 6
Table 2. ~
Burnett Commercial Park
2005 Existing PM Peak Hour LOS Summary
PM Peak Hour
Unsignalized Study Intersection LOSS Delay' V/C'
I . Yelm Aveuue (SR-510) / [3umctl Road
Eastbound Lek A 8.5 0.03
Southbound C 20.0 0.03
L LOB analyses um M1esed on nmNOdologirs esloblished in the 20001/fghway Capae/ry Manual.
2. Ddey=avcmgc wnrrol ddey per vchldc.
3- V/C=VOlnmctoCVpvnp~mGa-
a. NI stpnuls sscrc essnmr4 to be tLlly xuuaied, s lies wereo timized under each scenario.
Determination of Project Impact
Trip Generation
The trip generation for the proposed development, as shown in Table 1, was based on trip
generation equations documented in the Institute of Transportation Engineers (ITE) Trip
Generation Manual 7`h Edition (LUC 151 Mini-Warehouse, LUC 710 General Office
Building and LUC 220 Apartment). The proposed development is estimated to generate
175 trips on a typical weekday, with 18 trips occurring during the PM peak hour in Phase I.
Wth Phase II, about 87 additional trips per day would be generated, with 12 of those trips
occurring during the PM peak hour. Total project trip generation is estimated at 262
weekday trips, with 30 trips occurring during the PM peak hour.
Table 1.
Burnett Commercial Park
Trip Generation Summary
PM Pea k Hour Daily
Land Use ~ Size Rate' Total In Ouf Rate Trips
Phase)
Mini-Warehouse 70,000 GEA' L01 IS 10 8 9.57 175
1'hasc 1 Total IS 10 8 175
Phase 11
General Office Building 5,500 GEA' 1.49 10 5 5 11.01 60
A artment 4 Units 0.62 2 I I 6.72 27
Phase II Total 12 6 6 -- 87
Taal Tri Generation (1'hnscl+phase ll) -- 30 I6 14 262
I. Mini~Warehouse-IIB LU C Ii I. Gonerel OlGcetluilJ,nS-ii[LUC ]Iq and Apartment=IT I: LUC2211.
2. Tnp rotes bused on llEin p Genereuon MOnual.9"GJltio¢?u03
3. GP:\is Gross Floor Area.
Transportation Engneering/OUerations ~ Impaa Studies ~ Design Services r Transporla[ion Planning/Forecasting
16625 Redmontl Way, Suite M, PMB 313 r Redmond, WA 98052 ~ Office (206) 396-8286 r Fax (425) 885-1987
Transportation Engineering Northwest Page 7
Trip Distribution and Assignment
Using standard engineering practices and guidelines, new vehicle trips generated by the
proposed Burnett Commercial Park development were distributed and assigned to the
surrounding street system based on local traffic patterns and high locations of housing
and commercial areas.
As shown in Figure 4, project trip distribution and assignment was assumed to follow
these patterns from the proposed site:
• 50 percent to the northwest via Yelm Avenue (SR 510).
• 50 percent to the southeast via Yelm Avenue (SR 510).
Traffic Volume Impact
Future traffic volumes with and without the proposed project were estimated for PM peak
hour conditions in the year 2006. Future traffic volumes at the study intersection of Yelm
Avenue (SR-510) / Burnett Road was developed based on existing peak hour traffic
counts increased to account for background growth. Based on discussions with the City
of Yelm, a 4 percent annual growth rate was used to account for traffic growth in the area.
In addition to the background growth rate, the pipeline project for Yelm Terra Plat (97
single-family residential homes) was added to existing conditions to determine 2006 PM
peak hour traffic volumes without the project.
The weekday PM peak hour traffic volumes for year 2006 without the project are shown
on Figure 5. Adding the project-generated PM peak hour trips (shown in Figure 4) to the
future without-project traffic volumes (Figure 5), results in future with-project traffc
volumes, as shown in Figure 6. Traffic volume estimates are provided in Appendix C.
Intersection LOS Impact
The weekday PM peak hour intersection LOS analysis results in 2006 at the study
intersection of Yelm Avenue (SR-510) / Burnett Road are summarized in Table 3. As
shown, all controlled movements at this intersection are expected to continue operating at
LOS C or better without the project and LOS D or better with the project. Detailed LOS
analysis worksheets for study intersections are provided in Appendix B.
Transporta[ion Engineering/Operations r ImpaR Studies • Design Services r Transporla[ion Planning/FOrecastin8
16625 Redmond Way, Sui[e M, PMB 323 r Redmond, WA 98051 r O(rice (206) 396-8286 r Fax (425) BBS-I9B7
Transportation Engineering Northwest Page 8
vn
Aede~' MuJ 0.vo Ad
86th Ln SE
510
BBdt Ave SE
89ot Ave SE '
Prairie Vuta Loop
Project
Site
14
d' ~ r _
~~
,~A. Z
+.16
91td Ace SE
~ ! j~ V
~"
~ 9
ti a
510 W¢o 5 re~Ro
S~`c ~
yo
e Gerry Vallev Rd
S`
J
~~~' ~3
h
~ n9re
rrvol 105[9101
Figure 4 Burnett
(fin Transportation Colnntercial Park
1974=J Engineering Project Trip Distribution Yelm, WA
Nonhwest, uc and Assignment
Gal@lmpa[r AruNm
hansportation Engineering/Operations • ImWCt Studies • Design Services • iranspor[a0on Planning/FOrecastlng
16625 Redmond Way, Suite M, PMB 323 . Redmond, WA 98052 r O(lice (206) 3968286 ~ Fax (425) 885 1987
Transportation Engineering Northwest
Page 9
eM^ ~n i
Poi Mu. Bon 0.•
86th Li SE
SIO
88rh Ave SE
89th Ave Sf
e, Pnlre Vlssa Lap
Project d
Site
f
9},A Ave SE °~
yt- Y U
SR S I ~; Yulin Aro/
Ilumetl NwJ
O
~
J 9
e
> 1 ~
ry
R t
n
k~
e
Transpo w[ion
Engineering
North Wes[, LLC
•, ca
S rOR
510 ~~e o
S~`¢ F:
Item Valley R,1 1~
S`
r J
J
"2 3
~ ag4e
Figure 5 I Burnett
2006 Without Project nmercial Park
PM Peak Hour Traffic Volumes D re'I»,wA
LrLf[ Impxl MLpI~
Transportation Engineering/Operations rlmpaR Studies r Design Services r Transportation Planning/Forecasdng
16625 Redmond Way, Suite M, PMB 323 ~ Redmond, WA 98051 • O((ice (106) 396~81B6 • Fax (425) BB5~14B]
Transportation Engineering North West Page 10
Pape,wp In MuA ROn Rd
86th Ln SE
510
BBtM1 Ave SE
89oh Ave SE
e, Pral(e Vlsu L,wp
Project
Sice n p
f
93rA Ave SE
p''9 rv x V
SR 510/Yxlm Aw!
6wncil Ro.q
ti5 19 I6
ry° ~
ay
S
R~~~° '. 5 t0 c,'ec ~~ y,PjR°
Mlry Valley RA
Mol to scale{ e
Fi ure 6 Burnet[
nr~ TransporW[ion g Cominer<ial Park
hC9:J Engineering 2006 With Project veim,wn
Norcnwest, sic pM Peak Hour Traffic Volumes
r,nn, Immn n~.,lrvx
Transportation Engineering/Operations ~ Impaa Studies ~ Design Services ~ Transportation Planning/Forecasting
16625 Retlmond Way, Suite M, PMB 313 ~ Retlmond, WA 98052 ~ O(lice (206) 396-8286 r Fax (925) 885-1987
Transportation Engineering Nor[hWest Page 17
Table 3.
Burnett Commercial Park
2006 1'M Peak Hour LOS Summary
2006 Without Project 2006 With Project
U nsignalized Study Intcrsectlon LOSS Delay' V/Ct LOSS Delay V/C'
2. SE 304'" St/ SR IS SB Ramps
Westbound Left A 8.6 0.02 A 8.6 0.03
Southbound C 23.8 0.12 D 27.3 024
I. LOS analysts em bescd on nmWOdtlogics aslebllshtd ,n the 2000 /fIRH,ooy Capanry Manual.
2. Delay=avera6e control dtln5 pcnehide.
3. V/C=VOlumem CepaCiry ratio.
4. All signals were assumed to he Cully adunied spins wem nn~imiuA under reth mene
Transportation Impact Fees
The City of Yelm administers a traffic impact fee of $750 per PM peak hour trip. Based
upon this trip rate, Phase I would have a traffic impact fee of $13,500. The Phase II traffic
impact fee would be $9,000. The total impact fee for the Burnett Commercial Park
development would be $22,500.
We look forward to your comments regarding this traffic impact analysis memo. If you
have any questions, please contact Jeff Schramm at (206) 396-8286.
Transportation Engineering/Operazions r Impact Studies r Design Services r Transpor[a[ion Planning/Forecas[ing
16625 Redmond Way, Suite M, PMO J23 r Retlmonq WA 98052 r ORice (206) 3968286 r Fax (425) 885-1487
Appendix A
PM Peak Hour Traffic Count
All Traffic Data Services Inc
2225 NE 27th St
Renton, WA 98056 File Name :Burnett&SR510
Ph. 206-251 -0300 Site Code :00000000
Start Date :1/12/2005
Page No : 1
Groups Printed- U nshiked
-
BU RNE TT SR 510 BU RNETT SR 510
Sou th bo und Westbou nd Northbound Eastbound
Thr~ R 9 APP L TM1r Rig TM1r
APP Rig APP- APR Exdu Indu.
Tb Rig Int.
Stan T me leh M ry% .
Total Left M XV LeK
Total ryy
M Toiel Lek HV
ht T o WI
total Total
Total
Fa<tor 10 10' 1
0 10 ~ 1.0 10 1.0 1.B 1D 10 10 10 1D' 1.0 1.0 1.0
_
n300 PM 0 6 .
.
0 n 0~ _
0 121 3 12 129 0 6 0 0 0 0 121 6 6 121 1B 295 ]63
03.15 PM 6 0 9 0 10 ' 0 128 0 B 131 0 6 0 0 0 1 120 9 fi 1ffi N 2fifi 200
03:30 PM 3 B 2 0 5' 0 108 9 1P9 0 B 0 0 0' 2 162 0 B 160 T] 2]B 295
W'95 PM D 6 1 4 0 t1t 3 5 119 0 6 0 0 0 2 19] 0 12 199 IB 31] 335
Total 13 0 6 1 19 0 960 10 39 9]0 0 B 0 0 0 5 609 0 32 609 6] 110fi 193
09 W PM 3 0 2 0 5 0 114 121 0 p 0 0 0 3 199 0 9 162 5 2]fi 2&l
04]5 PM 9 0 0 4 0 t03 2 10] 0 0 0 0 0 2 190 0 ] 150 9 261 2]0
0930 PM 3 6 6 0 0 0 11] 5 122 0 0 0 0 0 2 169 0 fi P1 ] 301 308
04 H5 PM 0 B 0 1 0 122 5 ] 12] 0 6 0 0 0 9 16] D 5 2W 12 339 39B
iolel 10 0 6 0 16 0 956 21 11 9]] 0 0 0 0 0 16 663 0 22 6]9 33 11]9 11II]
PS OO PM ] 0 0 6 ] 0 110 ] 3 1q 0 0 0 0 0 106 D 3 18] 6 011 01]
05.15 PM 0 0 5 0 5 0 t19 9 t33 0 B 0 0 0 9 190 0 9 190 0 322 330
05:30 PM o 2 0 3 0 9] 5 2 102 0 0 0 0 0 2 19] 0 0 199 fi 309 310
0595 PM 6 B B 0 6 0 ]5
1 0 ]fi 0 0 0 0 0 1 PS 0 3 1]6 3 258 261
total 19 0 ] 0 21 ~ 0 901 1] 9 916 0 0 0 0 0 0 ]90 0 10 ]56 23 1195 1216
Grantl total 3] 0 21 1 fi0 0 135 90 59 1373 0 0 0 0 0 29 2D5 0 60 2-19 l29 09]5 4596
App rth% 6]0 00 3fi2 00 965 35 00 00 00 10 986 O6
Total% 1.1 00 O6 1] 00 301 19 395 00 Ofi 60 00 OB 580 00 $BB 3d 966
All Traffic Data Services Inc.
2225 NE 27th St
Renton, WA 98056
Ph. 206-251-0300
BURNETT SR 510
Southbound Westbound
0
91ert Time I Le% TM1m RIgM1I. T
e Left TM1ru Rig M1l
e
1
l
Peak HOUr From 03:00 PM 1 o 05:95 PM-Pea kt ott
sed ion
n1B 0q 95 PM
Valume 9 0 ifi 0 49B 21
P BFenI SG3 n0 93B 4.n 355 05
09:0.5 Volume 1 0 B + 0 122 5
Peak Fegor
XigM1 lnl 05O]PM 0095 PM
vm~me ] a a ] 0 1zz s
Peek Facrw n.5]1
File Name :Burnett&SR510
Site Code :00000000
Start Date :1/12/2005
Page No : 2
BURNETT SR 510
Northbound Ea
sibound
P Le% Thm Right Le% _
TM1ru '
R gM
To
al To al . To al. Total
069 n n 0 0 16 ]]0 n ]Bfi 1z]1
00 00 0.0 20 9B.0 0.0
19 n n 0 n 9 14i 0 RB6 34f
3951
P95:nn PM 0095 PM
12] n n 0 n 9 19] 0 2B6
09W 0950
Out In TOlal
J] i6 53
T 0 9
RigM1i Thm LeH
o~ ~O
_A
~ No Rh
'
°r.2 ~
1 1/t 2/20059'A590 PM 9
1/12Y10P5 5:30 00 PM ~ m '
O a Unshi%etl ~
p - -
=
1 k
Left TM1ru RIgM
B o 0
B o 0
om to Total
s Ru rT __
Appendix B
Intersection LOS Results
2004 Existing
ontrol Dela s/veh 8.5 20.0
LOS A C
pproach delay
s/veh - -_ 20.0
pproach LOS -- -- C
HCSSOOOTM Capyrigh~ ffi 200 Univewirv oC F1ond~. All ItigMs Itesewed Ve¢ion 4J d
2006 Without-Project
Control Dela s/veh 8.6 23.8
LOS A C
pproach delay
s/veh __ __ 23.8
pproach LOS -- - C
NcsauooTM' co~r~em ~ zom unmcrmy orniodm, au e~sn~s a~.e~a vca~o~ aie
2006 With-Project
Control Dela s/veh 8.6 27.3
LOS A D
pproach delay
s/veh
-
--
27.3
pproach LOS -- -- D
HCSSOOOT~~ Copyright C 3001 Omversiry of llondn, All ItigMs 2eseovetl Voaian 4.14
Appendix C
2006 Future Year Traffic Volume
Estimates
=v
- .;
°' „ n
~_ m~
~ _
m ~ L
N
3
T
.\° NN ~
x a $ -
w w
n n n z
a w
K Y Y a F
c n E
= J _
O
~ N
LL ~
W Q
C
b a
x
w
N >
N
0
v
a
as
N m
EE
~U
J v
C j
N pj
E ~ a
~ .. < W
p E N e
rnz'ua
C « « I
` a U
~ ~ ~ y
F n n` a
w
6E o o
-
o
E 9L L 0
-
~ n
z
o a o o d
0 0 _
f
0 8
ode
~ > o
3
8 C 8 0
v ~
l
r l
e L o a
' o o
S
L 8 0
m
8
ry
[E 6 8 0
~
0 0
a 8l L 0 0
~ °
tiC
~Q
d
'o£ w3: m o
O
a`
3
O
4 O
r
" a
v 'c
O N
n O
ove
SS 91 0 8
3 8
f
dE OL 8 8
v ~
9L L m 0
E
c" e L o
I
~~
~ '..
`s ~
%005
w r