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TIA updated 11-06-06 0011 1 1 t 1 1 1 1 Transportation EngineeringNorthWest DATE: November 6, 2006 Updated Traffic TO: Steve Chamberlain, The SCA Group }~~- ,~ FROM: Jeff Schramm, Transportation Engineering North West `~!/F RE: UPDATED Traffic Impact Analysis -Burnett Commercial Park Development TENW Project No. 2421 This updated traffic impact analysis has been prepared for the Burnett Commercial Park development. Phase II of the development has changed, and this memo updates the traffc impacts associated with the Phase II site plan changes. Project Description Buildout of the proposed development would occur over 2 phases. Phase I, which has already been constructed, consists of about 70,000 square feet of mini-storage space. Phase II would be a mixed-used development consisting of about 7,100 square feet of retail space on the bottom floors of Buildings A and B, along with 4,450 square feet of professional office on the top floor of Building A. The project site is located on the east side of Burnett Road in the City of Yelm. Vehicular access occurs at one driveway on Burnett Road. Build-out of Phase II will be completed in 2007. A project site vicinity map is shown in Figure 1, and an updated site plan is shown in Figure 2. ' Existing Traffic Volumes All Traffc 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. 1 ' TrantpprGtion Engineering/Operations a Impatt Studies • Deslgn Services a Transportation Planning/Forecasting ' 816 6'^-Street 5. • IOrklanq WA 98033 • ORlce (206) 3968286 r Fax (925) 889~TENW (8369) Transportation Engineering NorchWest November 6, 2006 Page 2 Transportation Engineering/Ocera[ions r Impact Studies ~ Design Services ~ TransporNHOn PWnning/FOrerastlng 816 6'"-Street 5. ~ Kirkland, WA 98033 r O/lice (206) 396-8286 r Fax (425) 689-TENW (8369) Transportation Engineering Northwest November 6, 2006 Mini Swrage is ali Loilq some (60%) occupied. ~ ~ i sineaccess ~ ~ °~.// i / • 4 G ... onr ~~ ~ .m. I I I ~i / JtP N/...,..,yy.~,.m ~I _ ... .-.: ~ ~ z -. wri I I Bldg A: Bldg B= retail all 3,644 lwttom= retail= 4,450 4,450 top=ofFlce= 4,450 7,094 8 rNa to 5ceiel (fin Trans ortation Burnett iV`y/ p Figure 2 Commercial Park ~ Yelny WA Nor[hWeerl LlC Project Site Plan I Transportation Engineering/Ocera[ions a Impatt Studies a Design Services a Transports[ion Planning/FOrerasting ' 816 6'"- Spee[ 5. a Kirkland, WA 98033 a Ofece (206) 396-8286 a Fax (425) 889-TENW (8369) Transportation Engineering Northwest November 6, 2006 Dmnd Pn~~~Vn Mdaon Ra.--_ ~ Bbth Ln SE '.510 '.., BBrh Ave SE _-_-, B9th Ave SE ~ Prame Visca Loop ---- --- Project ' Site d E 93rd Ace SE ' °a N o = ~qM x'. u' SR 510/Yeim Avel Rumen Rmtl e 1~ Ly ~ ~ ~ ~k t ~F S ~'e&R R ati 510 L' @ -w off. ~ RegY Valley Rd _ _ _-_ e ~~ o~ ' ~~ q ~ e ~ (NOt to Sesle) ~ - ~ Transportation Fi ure 3 g g°r"eTt Commercial Park Engineering Existing PM Peak Hour Y W Nortnwest, uc Traffic Volumes elnl, A rr.,mr mm.. A~mea Transportation Engineering/Operations • Impatt Studies r Design Servires r TransporGtlon PWnning/FOrecastlng B I6 6'"- Street 5. r Kirkland, WA 98033 r Office (206) 396-8286 r Fax (425) 869-TENW (8369) 5 Existing Intersection Level of Service (LOS) Level of service (LOS) serves as an indicator of the quality of traffic 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. 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 Capacity for unsignalized intersections. Existing weekday PM peak hour LOS analysis results for the study intersection are summarized in Table ~. As shown in Table 1, 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. Table 1. Burnett Commercial Park Existing PM Peak Hour LOS Summary Unsignalized Smdy intersection Movement LOSS Dela}~ V/Lv Yelm Avenue (SR-510) / 13umett Road EB Left-Tum A 8.5 0.03 EB Left Turn C 20.0 0.03 1. IAB analyses are based on meModningiez e-~sbGSMed in ILC 2000 //iphx~ay CuOOCIro Manual. 2 Delay=average conlml deJUy per vehicle. }. V/C=VOlumem CU arvauo- I ' Transportation Engineering/Operations r Impact Studies ~ Design Services a Transportation Planning/Forecasting B 16 6'^~ Street 5. r Kirkland, WA 98077 r Office (206) 396-8286 ~ Fax (925) BB9 7ENW (8369) v s I ' Determination of Project Impact Trip Generation The trip generation for the proposed development, as shown in Table 2, was based on trip generation equations documented in the Institute of Transportation Engineers (ITE) Trip Generation Manual 7'" Edition (LUC 151 Mini-Warehouse, LUC 710 General Office Building and LUC 814 Specialty Retail). The new Phase II plan would generate about 364 additional trips per day, with 26 of those trips occurring during the PM peak hour. Total project trip generation is estimated at 539 weekday trips, with 44 trips occurring during the PM peak hour. Table 2. Burnett Commercial Park Trip Generation Summary PM Pea k Hour Daily Laud Use' Size Ita[e' Total Tn Ou[ Rate Trips Phasel Mini-Warehouse 70.000 GFA' 1.01 18 ]0 8 9.57 175 Phase I Total IS 10 8 175 Phase H Professional Office Building 4,450 GFA 1.49 7 2 5 11.01 49 5 ecialty Retail 9.100GFA 2.71 19 8 I1 44.32 315 Phase II Total 26 10 16 364 Total Tri Generation (Phase I+Phase II) 44 20 24 539 1. Mini-Waahovice-rFE WCISI,Grncrel Office Bwltling=ITL UJC 410, Rnail-ITE LUC 814. Tnp rams based on ITF Tnp Generedoa Manuul, ]°' Edi~ioq 2o0J 1. GFA is Gross Floor Area. 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). Trantpprtation Engineering/Operations ~ Impatt SNOies • Design Services a Transportation Planning/Forecasting B I6 6'^- Street S. ~ Kirkland, WA 98033 r O/fia (206) 3968286 • Fax (925) 8B9-TENW (8369) ~ ~~ t Traffic Volume Impact ' Future traffc volumes with and without the proposed project were estimated for PM peak hour conditions in the year 2006. Future traffc volumes at the study intersection of Yelm Avenue (SR-510) / Burnett Road was developed based on existing peak hour traffc ' 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 traffc 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 traffc volumes (Figure 5), results in future with-project traffc ' volumes, as shown in Figure 6. 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. 1 Table 2. Burnett Commercial Park ' 2006 PM Peak Hour LOS Summary '~ 2006 Without Project 2006 With Project Unsi nalized SNdy Ivtersectiov LOS' Delay V/~ LOSS Dela ' V/Ca 2. SE 304'" St i SR 18 SB Ramps Westbound Left A R.6 0.02 A 8.7 0.03 Southbound C 23.8 0.12 D 29.3 0.32 I- IAB analyses ace based on,oethodologies ~srablishM in We 1000 /lighxvy CopucrN Manual. 2 Delay=wecnge wntml delay per aehlde. 3. V/C=VOlumem Ca dmmtio- ' Transportation Impact Fees ' The City of Yelm administers a traffic impact fee of $750 per PM peak hour trip. Based upon this trip rate, the updated Phase II traffic impact fee would be $19,500 (26 trips x ' $750 per trip). If you have any questions, please contact Jeff Schramm at (206) 396-8286 or Schramm@tenw.com ' Trantporta[ion Engineering/Operations r Impatt Studies r Design Services • Transportation Planning/FOrewstlng B I6 6'^~ S[reet 5. r Kirkland, WA 98033 r Olfice (206) 396-8286 r Fax (425) 889~iENW (8369) Transportation Engineering Northwest November 6, 2006 Pace 8 PneeM^V~ Mpeguo Re _.... _. 86{h Ln 55't18?'0} W '', BBN Ave SE - "' E Prairk Vk_ra Loop Project m Site ~ zn '~,~ - 0 ~e sE .I V,,'• r. Y, ~~ _._..... ~ .~.a_ ¢5 S C$r~ BIO' ~,J ~ RO S` --'a2i;'4y .~~. Berry Valley Rd ~ ® Q,, g. ~D Q ~Cr V/„ y~' ~ V {NO11o Scale) i'1 Ure 4 Burnett Transportation g Commercial Park Engineering Updated PM Peak Hour Yelm, WA Norcnwest, tic Trip Distribution and Assignment Traflk Imprzt Amlysir Transportation Engineering/Operations • Impatt S[urlles a Design Services • Transportation Planning/Forecasting B 16 6'^~ Street 5. r KirklanJ, WA 98033 ~ Office (206) 3968286 r Fax (425) 889~TENW (8369) .~ «a Aode~lp. MuA pun RD BbN Ln SE i S 510' ' 88N Ave SE 89Th Ave SE ~ --_ ',. Pra r e Vora Loop Project 9 Site t~ d ----. 93rd. AVe SE ---_ ~ '^ yP/~ ,y P y y $A 510/Yelm Ave! Bumen Rand ~~ ) 9 tC ~q SIOi (.. ~ai /~.? ~ ~~ ~. v~~ Berry Valley 0.d _, © a i,~~~~~ A~ .s ~~ CS ~~ (NOt toStyle) Figure 5 Burnett n^ Transportation Commercial Park 1;t74:J Engineering 2006 Without Project yelm, WA NorthWes[, uc PM Peak Hour Traffic Volumes a..nr ~",~, ~" Transporfalion Engineering/Operations r Impact Studies ~ Design Services ~ hansporta[ion Planning/Forecasting 816 6'"-Street 5. • Kirkland, WA 98033 ~ O/fice (206) 396-8286 ~ Fax (425) BB9~iENW (8369) Transportation Engineering Northwest November 6, 2006 L~ ,.. xe_... - __ Bbth-Lg SE ~ r ' c '.. -~- 88th Ave SE ~ " B9[h Ave SE rc ( " E Pn de Viw Loop !. t Project m Site d F I 93rd ASre SE mi '" __.. i " ~'9, 2 °o d s . ( x,l. U'. SR S IQlyelm Ave/ Bvnaert Roatl "` '`~. oti y ~ is zl $ > 1 L a w t R s'~ fNOt to Sw~ei (\n Transportation lf9L/ Engineering Northwest, LLC Berry Valley Rd _ _~/ ~i Figure 6 2006 With Project PM Peak Hour Traffic Volumes 5-" ~~~~Rd ,~C a 0 4 1 °S; `'` q r `"~ Yelm, WA Transportation Engineering/Operations ~ Impa¢ Studies r Design Servires • Transportation Planning/Foreresimg 816 6'^~ Street 5. ~ Kirkland, WA 98033 r O(Fice (206) 396-8286 • Fax (425) 889-TENW (8369) ~ TWO-WAY STOP CONTROL SUMMARY enc /Co. TENW Jurisdiction Cit of Yelm Date PeAormed 11/3/06 nal sis Year 2006 With Pro ecf nal sis Time Period PM Peak 1 ncsznmP'^ CopyrigM1~ @?0f13 nnfversiry ofFlondn, All Rights Rcu+veA Version a R