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JAN-14-2005 FRI 09 41 AM PARRMETRIX FAX N0. 360 459 0154 P, O1 ENOINRERINO . -LAMNINY .ENVIRONMENTAL eCr6NCES 8790 TALLON LANE NE x.ACE"1', W.A 98516-6641 T.360.4b9~b09 F. 3(0.459.0151 ~~+%M11Hriic.con~ F A X T R A N S M I T 'T A L FAX: 380-459-p~54 /PHONE: 360-469-3BOp To:-~ ~ ~ Date: ~ ~ (~ From: Sent By: (L~`(5a~~ Project Number: Phone: Project Name: Fax: ~~ . cc: Total Pages: O URGENT ^ FOR REVIEW Q PER YOUR REgUEST p LEASE REPLY ^ FOR YOUR FILES BACKUP COPY WILL NOT BE SENT Comments/Message: ~~~ ~- ~~ ~~ ~ n ~ ~~ ~n a'~.-P.o rfu--- h~`~-- C~nv~s~n- w~ ~s~- . ~X .~~d ~~c~, ,AN 1 ~ 2pp5 C. TMe fatsimle i5 con6derttlal end may el6o be anomeyprivlleged. If you are nol the 1Mended recipianl a the person responsible for Its d~stribulion. pease call us collect Immediately at 960.456.3608 and return Uie original t0 us via the U.S. Postal 3ervlce. Thank you. (Rer. o7ro~) JAN-14-2005 FRI 09 41 AM PARRMETRIX FAX N0. 360 459 0154 P. 02 lxuuu~~un ~a3o TACIAN UNE, SUI'rP B UCEY, WASHINGTAN 98516-6641 T:360.d59.3609 F. 360.459.0134 www pac:~mcuizcom July 29, 2004 PMX# 254-4520-002 Jim Gibson, P.E. City of Yelm Development Services PO Box 479 Yelm, WA 98597 ~e~eived JAN 14 2005 lte: Cullens Road Plat -Traffic Seoping Analysis Dear Jim: Don Findlay is proposing construction of the Cullens Road Plat, a 34_unit single-family residential development located west of Cullens Road in the City of Yelm. The development will be served by a primary vehicular access onto Cullens Road with an additional paved emergency access to Cullens Road at the south edbe of the property. The proj ect will be designed with a stub street for future connection to the south. The project is scheduled for completion and occupancy in 2006. We have prepared a project trip generation/distribution map and a list of assumptions we intend to use in preparing a Traffic Impact Analysis for the proposed project. Project Trip Generation Vehicle trip generation was calculated for this project using the current edition of the Trip Generation report by the Institute of Transportation Engineers (ITE). The Single-Family Detached Housing land use (land use code 210) was determined to be the most applicable to this site. The trip generation rates used for this analysis are shown below i.n Table 1. ... 1'a6;le Trip .Generation Clartcteri'sti.ES Culleps Raa<# Plat .: Daily Trip PM Peak Land Use (LU Code) Unit Rate Hour Rate Inbound Outbound Single-Fanuly Detached Dwelling Housing (LU 210) Unit 9.57 1.01 63"/" 37% The total trip generation expected from the proposed Cullens Road Plat was calculated by applying the number of units to the appropriate trip generation rate. The total project trip generation is shown on Table 2. r• :< ~`<. ,..::~ JRN-14-2005 FRI 09 41 AM PARAMETRIX FAX N0. 360 459 0154 P, 03 Jim Gibson, P July 29, 2004 Page 2 .. _ ..... Table 2 .. .. ProjrctTrip, Gencr;atjo •, .. _... Gullens:Roailf PI'a!. .. Daily PM Pea k Hour Tr i s Land Use Units Size Trips Total In Out Sinl;le-Family Detached Housing (LU 210) Dwelling Units 34 325 34 ? 1 13 Trip Distribution The vehicle directional trip distribution to and from the site will be based primarily on: • the arcs street system characteristics • current travel patterns on the area roadways • the proposed access system for the project, and • locations of other residential areas and shopping/commercial centers For this analysis, the direcrional distribution of traffic to and from the proposed Cullens Road Plat was estimated using the results of the traffic study prepared foe the Cherry Meadows project (formerly referred to as `1'elm Subdivision'), a residential development located in the immediate vicinity. Based on this input, we have estimated 45% of the new trips to/from the development will arrive from the northwest and 55% from the southeast. The site traffic distribution for the Cullens .Road Plai project is shown on Figure 1. Summary 1~}re proposed Cullens Road Plat will generate approximately 34 PM peak hour trips (21 entering and 13 exiting). Based on the trip distribution analysis, it appears that two intersections will require further analysis and documentation. These are: • Cullens Road/Site Driveway • Cullens Road/Yelm Avenue To prepare the Traffic Impact Analysis for this development we intend to use the following data and assumptions: • We will base our traffic volume projections on turning movement counts collected in April/May 2003 (from the August 13, 2003 Yelm Subdivision (Cherry Meadows) Transportation Impact Study) • The 2003 volumes will be increased by 4% to reflect base year 2004 conditions JAN-14-2005 FRI 09 42 AM PARRMETRIX FAX N0. 360 459 0154 P, 04 Jim Gibson, P.E. July 29, 2004 Page 3 • The 2003 volumes will be increased by 4% per year (uncompounded) to reflect `base' 2006 traffic conditions • Pipeline development traffic from the Yelm Subdit~sion project will be included in addition to the bacl~gound growth rate • The Cherry Meadows project on Cullens Road has been required to construct the following improvements at the Cullens Road/Yelm Avenue intersection: o Add a southbound left-turn lane on Cullens Road at Yelm Avenue o Add east and west bound left-turn lanes on Yelm Avenue at Cullens Road Those improvements will be assumed to have been completed prior to the 2006 horizon year for the Cullens Road Plat Once you have re~~ewed this scoping litter, please confirm the extent of the traffic impact anal}'sis. Thant: you for reviewing the enclosed materials. If you have any questions or continents about the enclosed information, please call me at (360) 459.3609. Than] you. Sincerely, Parametrix, Inc. ~.~Lti,. f... . Georg L. Smith Transportation Planner k~~244-4520-00?'.eorres~.Gibson 7_2!3_04 scoping lcr cc: Don Findlay JAN-14-2005 FRI 09 42 RM PARAMETRIX FRX N0. 360 459 0154 P, 05 .~ LEGEND XX96 GISYRIBU'nON PERCENTAGE XX w PM PEAk NOUR TRAFFIC VOLUME [XXX)+ AVERaGE DAILY TRAFFIC (ADT) VOLUtvIE 0 Z J Y 51J y ~~~ ~9~ ., ~~A SJ 45% ~~ ``s ERRY `dALLEY RD SI'iE-GENERATED TRAFFIC PM PEAK HOUR IN80UND OUTBOUND TOTAL 21 13 34 DAILY 7RAfFIC TOTAL 325 PROJECT SITE 0 N U 33//~~ z // N J d H G Y ~ ~ ~1 v `w U r 1!) N M •.d ~~ 1~t `~`~~~ 1 . ~tl ~ ~~ his J ~~h `ti q~ ~ ~SO~y'~o 9~„ ~ t s ? ~, 1 ~,3 } Gf 7 ~. r ~ j ~~s 5 % ` lis o~ 5~. G~' S ti 5; °~, , ~_,,. ' ~, 507 Jc % 1 5% N.T.S. ~J 35% 507 ~`°"""° sllmn~r '..elk rr " 31TE-GENERATED FIGURE N0. M~pNea Peope Mpy~ ~ryy MYK11gY0NMMlee 7oeune Br.m.n~w Klrklan0 LBEG4t! Tecor~a NM °iynpk ,Qene TRAFFIC VOLUMES CULLENS ROAD PLAT- pe,~~ena [rv.llia w..~a~a, TRAFFIC IMPACT ANALYSIS JAN-14-2005 FRI 09 42 RM PARAMETRIX FAX N0, 360 459 0154 P. 06 July 29, 2004 PMX# 254520-002 Jim Gibson, P.E. Ciry of Yahn Development Services PO Box 479 Yelm, WA 98597 Re: Cullens Road Plat -Traffic Scoping Analysis Dear Jim: Don Findlay is proposing construction of the Cullcrns Road Plut, a 34-unit single-family residential development located west of Cullens Road in the City of Yelm. The development will be served by a primary vehicular access onto Cullens Road with an additional paved emergency access to Cullens Road at the south edge of the property. The project will be designed with a stub street for future connection to the south. The project is scheduled for completion and occupancy in 2006. We have prepared a project trip generation/distribution map and a list of assumptions we intend to use in preparing a Traffic Impact Analysis for the proposed project_ Prof ect Trip Generation Vehicle trip generatioa was calculated for this project using the currant edition of the Trip Generation report by the Institute of Transportation Engineers (ITE). The Single-Family Detached Housing land use (land use code 210) was determined to be the most applicable to this site. The trip generation rates used for this analysis arc shown below in Table 1. Table l Trlp Generation Cbstracteristics Cullens Road Platf Daily Trip PM Peak Land Use (LU Code) Unit Rate Hour Rate Inbound Outbound Single-Family Detached Dwelling Housing (LU 2l0) Unit 9.57 1.01 63% 37% The total trip generation expected from the proposed Cullens Road Plat was calculated by applying the number of units to the appropriate trip generation rata. The total project trip grneration is shown on Table 2. ' JAN-14-2005 FRI 09:42 AM PARAMETRIX FAX N0. 360 459 0154 P, 07 ~.~ Jim Gibson, P.E. July 29, 2004 Page 2 TAble 2 Project Trip Generation Cullens Road P1At Daily PM Pea k Hour Tri s Land Use Units Size Tri s Total In Out Single-Family Detached Housing (LU 210) Dwelling Units 34 325 34 21 13 Trip Distribution The vehicle directional trip distribution to and from the site will be based primarily on: • the area street system characteristics current travel patterns on the area roadways the proposed access system for the project, and locations of other residential areas and shopping/commercial centers For this analysis, the directional distribution of traffic to and from the proposed Cullens Road Plat was estimated using the results of the traffic study prepared for the Cherry Meadows project (formerly referred to as'Yelm Subdivision'), a residential development located in the immediate vicinity. Based on this input, we have estimated 4S% of the new trips to/from the development will arrive from the northwest and SS% from the southeast. The site traffic distribution for the Cullens Road Plat project is shown on Figure 1. Summary The proposed Cullens Road Plat will generate approximately 34 PM peak hour trips (21 entering and 13 exiting). Based on the trip distribution analysis, it appears that two intersections will require further analysis and documentation. These are: Cullens Road/Site Driveway Cullens Road/Yelm Avenue • ~- (~ c.~.9 ~'pots~G ~. To prepare the Traffic Impact Analysis for this development we intend to use the following data and assumptions: We will base our traffic volume projections on taming movement counts collected in April/May 2003 (from tht August 1 S, 2003 Yelm Subdivision (Cherry Meadows) Transportation Impact Study) The 2003 volumes will be increased by 4% to reflect base year 2004 conditions P~ I ~ • `~ ~ p~O ~r ~~,~~ ~~ JAN-14-2005 FRI 09 43 AM PARRMETRIX FAX N0. 360 459 0154 P. 08 ~~ Jim Gibson, P.E. July 29, 2004 Page 3 • The 2003 volumes will be increased by 4% per year (uncompounded) to reflect `base' 2006 traffic conditions • Pipeline development traffic from the Yelm Subdivision project will be included in addition to the background growth rate • The Cheny Meadows project on Cullens Road has been required to construct the following improvements at the Cullens Road/Yelm Avenue intersection- o Add a southbound left-turn lane on Cullens Road at Yelm Avenue o Add east and west bound left-turn lanes on Yelm Avenue at Cullens Road Those improvements will be assumed to have been completed prior to the 2006 horizon year for the Cullens Road Plat Once you have reviewed this scoping letter, please confirm the extent of the traffic impact analysis. Thank you for reviewing the enclosed materials- If you have any questions or comments about the enclosed information, please call me at (360) 459-3609. Thank you. Sincerely, Parametrix, Inc. George L. Smith Transportation Planner k:L44-4520-00?lcorreslGibson 7 28_04 scoping 1[r.doc cc: Don Findlay JAN-14-2005 FRI 09 43 AM PARAMETRIX LEGEND '`~ XX7. DISTRIBUTION PERCENTAGE XX -- PM PEAK HOUR TRAFFIC VOLUME [XXX] ~ AVERAGE DAILY Ti2AFFIC {ADT) VOLUME 0 Z e J J Y 510 y~ C,y q~ liyS J 45% 9'~~s ~~.~.jy s_ ~~ FAX N0. 360 459 0154 PROJECT SITE 0 z _ 4 ry 1 N ~ ~ ~ N Z u .-, h N n u I~ Nll-- I 1 ~ J ,~~ 3 ~°q ~'s-I' lSOJs'~o ?> .~ ~, ~- =RRY VALLEY RO -- 1 , ti '~ j ~t~ ~ l ~~. oy Oy1PP ' ~ ~ 9 ~ ti SITE-GENERATED TRAFFIC 5%~+ ~ '` PM PEAK HOUR `.- INBOUND OUT80UND 70TAL 1~ 21 13 34 ,~ DAILY TRAFFIC 507 5% TOTAL 32S 5% P. 09 N.T.S. 5~ 35% 507 ~_ SITE-GENERATED i FIGURE NO.~~' :,.~,. s.,~~a ~~p~» ~: `" TRAFFIC VOLUMES ' imps sow~ron, rrtna~ ~ . M.w.w.an.~.o n~ Dean CUI_LENS ROAD PLAT- ~~ ~„°"°id,,,,,. "iw1d'" TRAFFIC IMPACT ANALY;;15 ~ Traffic Impact Analysis Prepared for Don Findlay 253-851-3600 Prepared by Parametrix 8830 Tallon Lane NE Suite B Lacey, WA 98503 360-459-3609 www.parametrix. com December 2004 Project No. 257-4520-002 Traffic Impact Analysis Prepared for Don Findlay 253-851-3600 Prepared by Parametrix 8830 Tallon Lane NE Suite B Lacey, WA 98503 360-459-3609 www.parametrix.com December 2004 Project No. 257-4520-002 CERTIFICATE OF ENGINEER The technical material and data contained in this document were prepared under the supervision and direction of the undersigned, whose seal, as a professional engineer licensed to practice as such, is affixed below. ~~ Checked by Cathie Carlson A. Sh~'a, P.E. Don Findlay 257-4520-002 Cullens Road Plat i December 2004 Traffic Impact Analysis TABLE OF CONTENTS 1. INTRODUCTION ..............................................................................................................................1-1 1.1 PROJECT OVERVIEW ......................................................................................................1-1 1.2 STUDY CONTEXT ............................................................................................................1-1 2. PROJECT DESCRIPTION ...............................................................................................................2-1 2.1 DEVELOPMENT PROPOSAL .......................................................................................... 2-1 3. BACKGROUND INFORMATION .....................................................................................................3-1 3.1 AREA LAND USES ........................................................................................................... 3-1 3.2 ROADWAY INVENTORY ................................................................................................3-1 3.3 TRAFFIC VOLUME DATA ............................................................................................... 3-1 4. PROJECT TRAFFIC CHARACTERISTICS .....................................................................................4-1 4.1 PROJECT TRIl' GENERATION ........................................................................................4-1 4.2 TRIP DISTRIBUTION ........................................................................................................4-2 5. FUTURE TRAFFIC CONDITIONS ...................................................................................................5-1 5.1 ROADWAY AND INTERSECTION IMPROVEMENTS ................................................. 5-1 5.2 FUTURE TRAFFIC VOLUMES ........................................................................................ 5-1 6. TRAFFIC OPERATIONS ANALYSIS .............................................................................................. 6-1 6.1 CAPACITY ANALYSIS .................................................................................................... 6-1 6.2 STOP SIGN-CONTROLLED INTERSECTIONS .............................................................6-2 6.3 SITE ACCESSES ................................................................................................................6-4 7. MITIGATION .....................................................................................................................................7-1 8. CONCLUSIONS ............................................................................................................................... 8-1 APPENDICES Appendix A Traffic Volume Calculations Appendix B Capacity Analysis Worksheets Appendix C Traffic Signal Warrant Analysis Don Findlay 257-4520-002 Cullens Road Plat ii December 2004 Traffic Impact Analysis 1.1 PROJECT OVERVIEW Don Findlay is proposing construction of the Cullens Road Plat, a 30-lot single-family residential development located west of Cullens Road in the City of Yelm. Figure 1 illustrates the site vicinity and the transportation network serving the project area. 1.2 STUDY CONTEXT This report by Parametrix documents the results of a Traffic Impact Analysis (TIA) of existing and future traffic conditions. The study was prepared according to City of Yelm TIA guidelines as part of the required environmental review submittal for the proposed project. The following two intersections in the study area were analyzed, in addition to the site access: • Cullens Road/Yelm Avenue • Cullens Road/Coates Road The project is expected to be completed by 2006, which was used as the horizon year for this study. The scope of work for this study was determined through a scoping process involving representatives of the City of Yelm and Parametrix staff. The intersections and roadways analysis requirements were determined by City staff. NOT TO SCALE 510 ~ w w ~ ~ ~ ~ L ~ ~ ~ ~ ~ ~ ~ m ~ c ~ ~ ~ 0 e~~ ~ ~ ~9~ e PROJECT Q' Canal Rd SE -° °- w o' ~ ~ ~ ~, _ z o ~ ~ ~ ~ ~ T U C~ o 0 Berry Valley 'a Rd SE Longmire St SE , 5 5~ 1 507 Figure 1 -Site Vicinity 50 c ~w ~~ ~~ -~ ~~ 8 N.r.s. ~~v , o ~ .Q aa a io o' S w ~ ~ ~ 0 NE 103rd Ave r Don Findlny 257-4520-002 Cullens Rond Plnt 1-1 December 2004 Traff c Impact Analysis 2.1 DEVELOPMENT PROPOSAL Don Findlay is proposing construction of the Cullens Road Plat, a 30-lot single family residential development on the west side of Cullens Road in the City of Yelm. The development will be served by a primary vehicular access onto Cullens Road, with an additional paved emergency access to Cullens Road at the south edge of the property. The project will be designed with a stub street for future connection to the south. A reduced copy of the preliminary site plan showing the proposed lots and internal roadway network is attached as Figure 2. i ------~-- _ __ r._______~ __ ____I _ _ _ _ I I I ---_---- -- I I I I T(OCt A - __ I 1 I I I 1 .14 Acres ~--- , r----, r----~ r----~ r----~ r----~ ~'-------J 1'---- ' ~ 3 I I 4 I ~ ~ I I I I I -- ~ 5~ 1 6 1 1 7. 1 g ---I --~ ~ - I I I I ~ I _` I I I I I ; ; I I I I I I I I I I I ~ I I I I I I I I , I I I-•~ I ~___~ L.____J L____J L____J L____J L___J ' ; 10 -- I I _ ~ I I -_____~~ ROAD 'A' I ~ I i ~~ I 111 \ ~~ i __--_--- --- I I ~ ~ I I 1 1 12 I .--------- I I I ~ ~~ ~ I I q ~ i I 141 I ` ~ ! I I 13 I I` `----~ ----- ~-----~-----' I I -----. Tract 'C' I i ------ I 1~ J ! ~ i---I r----~ 47 Acres i------- ~ I 1 g 1 ------I 116 ' ' 17 1 1 18 l ~ ~ ' I I I , ~-'-'-, I I I I ~ 1 I I L, 1 I I I I ! ~___I / I 20 I I Q ___ I_ I_____ I -~ _,- ~ I I ~ I I L--__-J I ~ ~ I I r_-___, I 30 I ' 21 ~ ~ RoaD 'e' ~ Tract 'B' i 1 I , ~ I I _._ __ _ 19 Acres i_____I _ ~ --- L- r---- r ! -- -----, ----- L_____J 124 ~ 25 ; 26 ~ ; 27 ~ ; 28 ~ ~ 29 I ~ NIC I r-----, .--- '~-----~ 1-----% ~-----II 1-----'I ~--------, I 1 23 1 . ~.~ L_____J --L~-___ ---- ____ _________ E ERG NCY AC ESS- - Figure 2 ~ Site Plan O O W J ~J Don Findlay 257-4520-002 Cullens Rond Plnt 2-I December 2004 Traffic Impact Analysis 3.1 AREA LAND USES The project site and surrounding area is zoned R-6 Moderate Density Residential. Surrounding properties are developed with single family residences or are vacant. Cherry Meadows, a 200+/- unit single family residential plat (formerly referred to as Yelm Subdivision), is planned immediately to the north of the site. 3.2 ROADWAY INVENTORY A comprehensive roadway inventory was performed by Parametrix to identify pre-existing conditions of the primary traffic facilities serving the site of the proposed Cullens Road Plat. Cullens Road is a two-lane north-south roadway bordering the site on the east. Total pavement width is approximately 19 feet with narrow unpaved shoulders, and the posted speed limit is 25 mph. Coates Road is a two-lane east-west roadway with pavement width between 19 feet and 32 feet. The posted speed limit is 25 mph. Yelm Avenue (State Route 510) is a State facility. In the project vicinity, it consists of ll- to 12-foot travel lanes and 4-foot paved shoulders. The posted speed limit is 35 mph west of Cullens Road and 25 mph east of Cullens. 3.3 TRAFFIC VOLUME DATA Turning movement counts collected in April/May 2003 (from the August 18, 2003 Yelm Subdivision [Cherry Meadows] Transportation Impact Study) were used for this study. These traffic volumes were increased by 4% to reflect base year 2004 conditions. Figure 3 shows the existing 2004 traffic volumes for the study intersections. Don Findlay 257-4520-002 Cullens Rond Plnt 3-I DecemGer 2004 Trnffc Impnct Analysis LEGEND XX -- PM PEAK HOUR TRAFFIC VOLUME - -- LESS THAN 5 VEHICLES Y~. ~~ ~ L~ ~~ ~ ~S~ S> Vl Z w J J U IFS ~'0 N.T.S. Figure 3 -Existing 2004 PM Peak Hour Traffic Volumes Public Transportation Intercity Transit Route 94 provides hourly service along Yelm Avenue on weekdays from the Olympia Transit Center to Nisqually Plaza in Yelm. Don Finrilny 257-4520-002 Cullens Rocul Plat 3-2 December 2004 Traffic Impnct Annlysis The two project-related characteristics having the most effect on area traffic conditions are peak hour trip generation and the directional distribution of traffic volumes. 4.1 PROJECT TRIP GENERATION Vehicle trip generation was calculated for this project using the current edition of the Trip Generation report by the Institute of Transportation Engineers (ITE). The Single-Family Detached Housing land use (land use code 210) was determined to be the most applicable to the site. The trip generation rates used for this analysis are shown below in Table 1. Table 1 Trip Generation Characteristics Cullens Road Plat -Daily Trip PM Peak Land Use (LU Code) Unit Rate Hour Rate Inbound Outbound Single Family Detached Dwelling Housing (LU 210) Unit 9.57 1.01 63% 37% The total trip generation expected from the proposed Cullens Road Plat was calculated by applying the number of units to the appropriate trip generation rate. The total project trip generation is shown on Table 2 below. Table 2 Project Trip Generation Cullens Road Plat Daily PM Peak Hour Trips Land Use Units Size Trips Total In Out Single Family Detached Housing (LU 210) Dwelling Units 34 325 34 21 13 NOTE: The project trip generation is based on a higher density site plan (34-lots). The subsequent analysis is based on this slightly higher site-generated traffic potentials Don Findlay 257-4520-002 Cullens Road Plat 4-1 December 2004 Traffic Impact Analysis 4.2 TRIP DISTRIBUTION The vehicle directional trip distribution to and from the site will be based primarily on: • the area street system characteristics • current travel patterns on the area roadways • the proposed access system for the project • locations of residential areas and shopping/commercial centers For this analysis, the directional distribution of traffic to and from the proposed Cullens Road Plat was estimated using the results of the traffic study prepared for the Cherry Meadows project. Based on this input, we have estimated 45% of the new trips to/from the development will arrive from the northwest and 55% from the southeast. The site traffic distribution for the Cullens Road Plat is shown on Figure 4. The project trip generation and distribution were approved by the City of Yelm during the traffic scoping process. Don Findlny 257-4520-002 Cullens Road Plat 4-2 DecemGer 2004 Trnffic Impnct Analysis LEGEND XX% DISTRIBUTION PERCENTAGE XX -+ PM PEAK HOUR TRAFFIC VOLUME [XXX] -- AVERAGE DAILY TRAFFIC (ADT) VOLUME PROJECT SITE 0 o s Z `y (n _~ z_ N.T.S. Y ~ X13 h N J 510 a F- ~~~ ~ r ~~~ ~ ~ z w ~~ WSJ ~ 45% 9~. R6 N R. ~~~~~~ 1~? ~ o°~T~s°~ F ~ ~~ `~ ~SOJ S ~'o 9~ 9 2'~. h ~~~ ~ °J ~~. ~ ti ~~ BERRY VALLEY RD 1 ~~~ ~t~ /~/ J 5% ~ ~'s °J ~~. a5 ~P~ ~S ~ R ~O 1 ~ 9 `ti SITE-GENERATED TRAFFIC 5% PM PEAK HOUR , ~~- ~ ~ INBOUND OUTBOUND TOTAL 1 J 35% 21 13 34 5% DAILY TRAFFIC 507 507 TOTAL 325 5% `"A5"'"°T°" SITE-GENERATED FIGURE N0. Sumner Seottle Krei r°e°m° To<om° Krei TRAFFIC VOLUMES Inspired People Bremerton Olympi0 Inspired Solutions KirkiOnd Makingadifference ~~. IDAHO CULLENS ROAD PLAT- Cowollls Mer1d1on TRAFFIC IMPACT ANALYSIS 5.1 ROADWAY AND INTERSECTION IMPROVEMENTS The City of Yelm determined that the Cherry Meadows development would cause the need for improvements to the Yelm Avenue/Cullens Road intersection. Based on the SEPA determination, the developer of the Cherry Meadows project will be required to construct eastbound and westbound left-turn lanes on Yelm Avenue at Cullens Road and to add a southbound left-turn lane on Cullens Road at Yelm Avenue. It is assumed for this study that these improvements will be completed prior to the construction of the Cullens Road Plat. If the Cherry Meadows project does not construct the improvements, the Cullens Road Plat may be responsible for construction of some or all of the improvements. 5.2 FUTURE TRAFFIC VOLUMES To estimate the non-specific traffic growth that will occur at the study intersections we applied an annual growth rate of 4% (uncompounded) to the base year traffic volumes. The 4% growth rate was determined by the City of Yelm. In addition to the background growth, the traffic volumes anticipated from the Cherry Meadows development were also added to reflect the 2006 traffic volume scenario without the Cullens Road Plat. The projected 2006 traffic volumes with background growth, without the Cullens Road Plat project are shown on Figure 5. LEGEND XX -- PM PEAK HOUR TRAFFIC VOLUME - -- LESS THAN s vEHIaEs r~.<~ 0 z O ~ i ~ ~ U _J h ~ ~ ~ °o d N.T.S. ~~O ~~ N ~~F ~ .r ~s~ s 1 soJ F%'~o 1~ 9 S" ~i ` 6 ~s r ~ S0 ~ 0 ~ ~ i i ~ _Z30 x'20 ~°~"'~'~°~r ~~ FS ~' O Figure 5 -Projected 2006 Traffic Volumes Without Project Don Findlay 257-4520-002 Cullens Road Plat 5-1 December 2004 Traffic Impnct Analysis The 2006 with-project traffic volumes were calculated by adding the site-generated traffic volumes for Cullens Road Plat (shown on Figure 4) to the without-project traffic volume projections shown on (Figure 5). The total traffic assignment for the 2006 horizon is shown on Figure 6. The traffic volume calculations for the study intersections are shown in Appendix A. LEGEND XX -- PM PEAK HOUR TRAFFIC VOLUME - -- LESS THAN 5 VEHICLES F~~~ ~~F ~S,p S~ aJ ~O ~9 ~ O S 0 z o CO J U 1 '1 T 157, °o ~ ~ O tNt ~. y ~~ S 1~ 0 ~ ~ h~ S ~ ~ `~~~5 ~ ~~ SO i~ ~~ Z35 ~C" 2~ ~~ ~ ~o ~ ~ ~ ~ TFS~ ~~ a N.T.S. Figure 6.2006 Traffic Volumes With Project Don Findlay 257-4520-002 Cullens Road Plat 5-2 December 2004 Traffic Impact Analysis Traffic analyses were conducted to determine any capacity deficiencies within the study area for the base year 2004, and 2006 project completion horizon year. 6.1 CAPACITY ANALYSIS The acknowledged source for determining overall capacity for arterial segments and independent intersections is the current edition of the Highway Capacity Manual (HCM). Capacity analyses were completed for the base year and projected 2006 PM peak hour traffic volume scenarios with and without project completion. Intersections were analyzed using the Highway Capacity Software that also utilizes the methodology in the 2000 HCM Capacity analysis results are described in terms of Level of Service (LOS). LOS is a qualitative term describing operating conditions a driver will experience while traveling on a particular street or highway during a specific time interval. It ranges from A (very little delay) to F (long delays and congestion). Level of Service D is the concurrency standard adopted by the City of Yelm for the study area, with the exception of the Yelm Avenue corridor which has an adopted LOS F standard. Level of service calculations for intersections determine the amount of `control delay' (in seconds) that drivers will experience while proceeding through an intersection. Control delay includes all deceleration delay, stopped delay, and acceleration delay caused by the traffic control device. The level of service is directly related to the amount of delay experienced. For intersections under Two-Way-Stop-Control (TWSC), the LOS of the minor street approaches and the major street left-turns is calculated. The following table shows the level of service criteria for stop-sign controlled intersections. Table 3 Level of Service Criteria for Sto -Si n Controlled Intersections Level of Service Average Control Delay (seconds/vehicle) A 5 10 B > 10 - 15 C > 15-25 D >25-35 E >35-50 F > 50 The capacity analysis worksheets are provided in Appendix B. Following is a description of the level of service analysis for the study intersections for the scenarios listed above. Don Findlay 257-4520-002 Cullens Rond Plnt 6-1 DeeemGer 2004 Traffic Impact Analysis 6.2 STOP SIGN-CONTROLLED INTERSECTIONS Cullens Road/Coates Road This is a four-leg intersection under stop sign control for the east-west approaches of Coates Road. The eastbound approach is a minor driveway approach. Each approach at this intersection provides single shared lanes. The intersection currently operates at a LOS A for the minor street left-turn movements. The intersection is expected to remain at LOS A through completion of the Cullens Road Plat project in 2006. Cullens Road/Yelm Avenue (SR 510) This is a four-leg intersection under stop sign control for the north-south approaches of Cullens Road. Currently there are single shared lanes at each approach. For existing traffic volumes the intersection operates at a LOS F for the southbound approach and LOS C for the northbound approach. This intersection will be upgraded as part of the SEPA mitigation responsibility of the Cherry Meadows development. The intersection improvements will include constructing eastbound and westbound left- turn lanes on Yelm Avenue at Cullens Road adding a southbound left-turn lane on Cullens Road at Yelm Avenue. For this analysis it is assumed that the intersection improvements will be in place by the 2006 horizon of the Cullens Road Plat. For the 2006 horizon, without Cullens Road Plat, the intersection will operate at a LOS F for the southbound left-turn movement and a LOS C for the southbound through-right movements with an approach average of LOS D. The northbound approach will operate at a LOS C. With the addition of traffic from the Cullens Road Plat the intersection will remain at LOS F for the southbound left-turn movement and LOS C for the through-right movement. The average delay for the southbound approach will increase by approximately 3 seconds per vehicle and remain at LOS D. The northbound approach will remain at a LOS C condition. When astop-sign controlled intersection experiences a poor level of service, a potential solution may be the installation of a traffic signal system. The Manual on Uniform Traffic Control Devices (MUTCD~ by the Federal Highway Administration (FHWA) describes a list of signal `warrants' which, if met, may indicate the need for signalization. A review of these warrants indicates that a traffic signal would not be warranted at this location. A summary of the Traffic Signal Warrant Analysis is provided in Appendix C. Table 10 below shows a summary of the operations analysis results for the stop sign-controlled intersections. Dan Findlay 257-4520-002 Cullens Road Plat 6-2 December 2004 Traffic Impact Analysis Table 4 Level of Service (LOS) Summary PM Peak Hour Projected 2006 Projected 2006 With Existing 2004 Volumes without Project Project LOS (Delay) LOS (Delay) LOS (Delay) Minor Minor Minor Street Left- Approach Street Approach Street Approach Intersection Approach turn* Average Left-turn Average Left-turn Average Cullens Road! EB A (8.7) A (9.1) A (9.3) Coates Road W B A (9.1) A (9.7) A (9.9) Cullens Road/Yelm NB C (21.8) C 19.1) C (19.3) Avenue (SR 510) SB F (68.9) F (50.0) D (30.2) F (55.9) D (33.1) * Minor Street left-Turn Level-of-Service shown only where a separate left-turn lane exists. Don Findlny 257-4520-002 Cullens Road Plat 6-3 December 2004 Trnffic Impnct Analysis 6.3 SITE ACCESSES Vehicle access to the project site will be provided by a single full access driveway located on Cullens Road. A secondary access to Cullens Road will also be provided at the southern edge of the subject property and will serve as an emergency access to the proposed subdivision. The project will also be designed with anorth-south stub street to allow connection to the undeveloped property to the south. The stub street will eventually align with the existing north-south stub street within the existing Prairie Winds subdivision located south of the undeveloped property. Site Driveway/Cullens Road This driveway access will be a `tee' intersection located near the north edge of the subject property and will provide full access movements into and out of the proposed plat. The intersection will be designed to provide single shared lanes at each approach. Based on this configuration, the site driveway/Cullens Road intersection will operate at a LOS A condition in the 2006 horizon. Don Findlay 257-4520-002 Cullens Rond Plnt 6-4 DecemGer 2004 Trnfftc Impact Analysis Traffic generated by the proposed Cullens Road Plat will have a measurable impact on the area roadways and intersections. Based on the analysis provided with this report, no intersections will fall to an unacceptable level of service with the construction of the Cullens Road Plat development and no off-site mitigation is required. However, the developer will be responsible for the following items: • The developer will be required to pay a Transportation Facility Charge per the City of Yelm Transportation Facility Charge ordinance. The fee will be determined by the City of Yelm. • The developer will be required to allow future development to the south to connect to the proposed roadway network internal to the plat. The design and construction of the future connection would be at the expense of the adjacent property owner. • The planned improvements to the Yelm Highway/Cullens Road intersection are expected to be constructed by the developer of the Cherry Meadows development prior to development of the Cullens Road Plat. If the intersection improvements are not constructed by the developer of the Cherry Meadows project, the developer of the Cullens Road Plat may be responsible for some or all of the planned improvements. The intersection analysis should be re-evaluated to determine the extent of the intersection improvements that would be needed if Cherry Meadows does not develop. If these improvements are provided by the Cullens Road Plat developer, the costs of improvements will be credited toward the Transportation Facility Charge. Don Findlay 257-4520-002 Cullens Road Plnt 7-t December 2004 Traffic Impact Analysis Donald Findlay is proposing development of the Cullens Road Plat in the City of Yelm located west of Cullens Road and south of the proposed Cherry Meadows development. The project will include construction of 34 single-family lots and an internal roadway network. Traffic generated by the proposed Cullens Road Plat will have a measurable impact on the area roadways and intersections. This study has analyzed two off-site intersections for the project completion in the 2004 horizon. Based on the analysis, all of the study roadways and intersections can accommodate the projected traffic levels expected by the 2006 development horizon year. However, the developer will be required to pay a transportation facilities charge to the City of Yelm in accordance with the current ordinance. Don Findlay 257-4510-002 Cullens Road Plat 8-1 December 2004 Traffic Impact Analysis APPENDIX A Traffic Volume Calculation Worksheet Parametrix, Inc. August 11, 2004 Appendix A Traffic Volume Worksheet Cullens Road Plat Traffic Impact Analysis Annual Growth Rate (Uncompounded) = 4% A B C D E F G ~ o ~ ~ m ~ 1= 7 ~ ~ ~ ~ ~ ~ V O > CJ N O ~ O Q. O O O ~ O _ '~' cC ~ U ~ ~ O O E N ~ ~ O N N .O ~ ~ ~ ~~ O> ~ O Q N O N O ~ ~ N~ C O N C ~ N ~ ~ ~ C~•~n N ~N ~~ ~ ~ ~ (n I-Q Cullens Road/ Site Driveway rt 0 0 0 0 0 0 0 SB th 18 19 20 41 61 0 61 It 0 0 0 0 0 0 0 rt 0 0 0 0 0 0 0 WB th 0 0 0 0 0 0 0 It 0 0 0 0 0 0 0 rt 0 0 0 0 0 0 0 NB th 25 26 28 72 100 0 100 It 0 0 0 0 0 21 21 rt 0 0 0 0 0 13 13 EB th 0 0 0 0 0 0 0 It 0 0 0 0 0 0 0 Cullens Road/ Coates Road rt 0 0 0 0 0 0 0 SB th 11 11 12 30 • 42 11 53 It 7 7 8 11 19 2 21 rt 9 9 10 20 30 3 33 WB th 2 2 2 0 2 0 2 It 20 21 22 0 22 0 22 rt 86 89 96 0 96 0 96 NB th 16 17 18 52 70 18 88 It 2 2 2 0 2 0 2 rt 5 5 6 0 6 0 6 EB th 2 2 2 0 2 0 2 It 0 0 0 0 0 0 0 A B C D E F G O O ~ ~. N U c tS ~ ~ ~ Q ~ U O ~ ~ (p ~ O O O CD O U 'D O ~ i U ~ O E ~ O N ~ ~ a O N~ O N O ~ N ~ O N ~ I- ~ ~ ~ N ~ N ~ 7 ~ O E N (Yj ~ d' U U O ~ C U ~~ U N O C.~ C ~ ~ O O ~_ ~ , y N S N ~f-- 0.. ~ ~ ~ (~ HQ Cullens Road/ Yelm Avenue rt 47 49 53 11 64 6 70 SB th 2 2 2 0 2 0 2 It 27 28 30 19 49 5 54 rt 31 32 35 32 67 9 76 W B th 564 587 632 20 652 0 652 It 16 17 18 0 18 0 18 rt 13 14 15 0 15 0 15 NB th 0 0 0 0 0 0 0 It 2 2 2 0 2 0 2 rt 24 25 27 0 27 0 27 EB th 785 816 879 11 890 0 890 It 68 71 76 20 96 9 105 NOteS: Column A: Turning movement counts (co nducted i n April/Ma y 200 3) taken from Yelm Subdivision Transportation Impact Study -August 18, 2003 by Transportation Engineering Northwest, LLC (TENW) Column B = Column A X 1.04 Column C = Column A X 1.12 Column D: taken from Yelm Subdivision Transportation Impact Study -August 18, 2003 by TENW Transportation Impact Studv -August 18, 2003 by Transportation Engineering Northwest, LLC (TENW) Column E = Column C + Column D Column F =From July 29, 2004 Cullens Road Plat Traffic Scopin4 Analysis by Parametrix, Inc. Column G = Column E + Column F APPENDIX B Capacity Analysis Worksheets Two-Way Stop Control Page 1 of 2 TWO-WAY STOP CONTROL SUMMARY General Information Site Information nalyst gency/Co. Date Performed nalysis Time Period Geo Parametrix, Inc. 8/11/2004 PM Peak Hour Intersection Jurisdiction nalysis Year 1c City of Yelm 2006 with project Project Descri tion Cullens Road Plat East/West Street: Site Drivewa North/South Street: Cullens Road Intersection Orientation: North-South Stud Period (hrs : 0.25 ehicle Volumes and Ad'ustments Ma'or Street Northbound Southbound Movement 1 2 3 4 5 6 L T R L T R olume 20 100 0 1 60 1 Peak-Hour Factor, PHF 0.90 0.90 0.90 0.90 0.90 0.90 Hourly Flow Rate, HFR 22 111 0 0 66 1 Percent Heavy Vehicles D -- -- D -- -- Median Type Undivided RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LT TR U stream Si nal 0 0 Minor Street Westbound Eastbound Movement 7 8 9 10 11 12 L T R L T R olume 0 0 0 1 0 15 Peak-Hour Factor, PHF 0.90 0.90 0.90 0.90 0.90 0.90 Hourly Flow Rate, HFR 0 0 0 1 0 16 Percent Heavy Vehicles 0 0 0 0 0 0 Percent Grade (%) 0 0 Flared Approach N N Storage 0 0 RT Channelized 0 0 Lanes 0 0 0 0 0 0 Configuration LR Dela ,Queue Len th, and Level of Service pproach NB SB Westbound Eastbound Movement 1 4 7 8 9 10 11 12 Lane Configuration LT LR (vph) 22 17 C (m) (vph) 1547 985 lc 0.01 0.02 95% queue length 0.04 0.05 Control Delay 7.4 8.7 LOS A A pproach Delay -- -- 8.7 pproach LOS -- -- A Rights Reserved Copyright ©2003 University of Florida, All Rights Reserved Version 4.1d file://C:\Documents%,20and%20Settin~s\cramecan.001\Local%20Settin~s\Temn\u2k42.tmn 12/1/2004 Two-Way Stop Control Page 2 of 2 HCS2000TNt Version 4.1d Two-Way Stop Control Page 1 of 2 TWO-WAY STOP CONTROL SUMMARY General Information Site Information nalyst gency/Co. Date Performed nal sis Time Period Geo Parametrix, Inc. 8/11/2004 PM Peak Hour Intersection Jurisdiction nalysis Year 2a City of Yelm Exisfing 2004 Traffic Project Description Cullens Road Plat East/Vllest Street: Coates Road North/South Street: Cullens Road Intersection Orientation: North-South Stud Period (hrs): 0.25 ehicle Volumes an d Ad'ustments Ma'or Street Northbound Southbound Movement 1 2 3 4 5 6 L T R L T R olume 1 15 90 5 10 1 Peak-Hour Factor, PHF 0.90 0.90 0.90 0.90 0.90 0.90 Hourly Flow Rate, HFR 1 16 100 5 11 1 Percent Heavy Vehicles 0 -- -- 0 -- -- Median Type Undivided RT Channelized 0 p Lanes 0 1 0 0 1 0 Configuration LTR LTR U stream Si nal 0 0 Minor Street Westbound Eastbound Movement 7 8 9 10 11 12 L T R L T R olume 20 1 10 1 1 5 Peak-Hour Factor, PHF 0.90 0.90 0.90 0.90 0.90 0.90 Hourly Flow Rate, HFR 22 1 11 1 1 5 Percent Heavy Vehicles 0 0 0 0 0 0 Percent Grade (%) 0 0 Flared Approach N l~/ Storage 0 0 RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LTR LTR Dela ,Queue Len th, and Level of Service pproach NB SB Westbound Eastbound Movement 1 4 7 8 9 10 11 12 Lane Configuration LTR LTR LTR LTR (vph) 1 5 34 7 C (m) (vph) 1620 1485 920 983 vlc 0.00 0.00 0.04 0.01 95% queue length 0.00 0.01 0.12 0.02 Control Delay 7.2 7.4 9.1 8.7 LOS A A A A pproach Delay -- -- 9.1 8.7 pproach LOS -- -- A A Rights Reserved Copyright O 2003 University of Florida, All Rights Reserved Version 4.1d Two-Way Stop Control Page 2 of 2 HCS1000TM Version 4.1d Two-Way Stop Control Page 1 of 1 TWO-WAY STOP CONTROL SUMMARY General Information Site Information nalyst gency/Co. Date Performed nal sis Time Period Geo Parametrix, Inc. 8/11/2004 PM Peak Hour Intersection urisdiction nalysis Year 2b City of Yelm 2006 without project Pro'ect Descri tion Cullens Road Plat East/West Street: Coates Road North/South Street: Cullens Road Intersection Orientation: North-South Stud Period (hrs): 0.25 ehicle Volumes an d Ad'ustments Ma'or Street Northbound Southbound Movement 1 2 3 4 5 6 L T R L T R olume 1 70 95 20 40 1 Peak-Hour Factor, PHF 0.90 0.90 0.90 0.90 0.90 0.90 Hourly Flow Rate, HFR 1 77 105 22 44 1 Percent Heavy Vehicles 0 -- -- 0 -- -- Median Type Undivided RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LTR LTR U stream Si nal 0 0 Minor Street Westbound Eastbound Movement 7 , 8 9 10 11 12 L T R L T R olume 20 1 30 1 1 5 Peak-Hour Factor, PHF 0.90 0.90 0.90 0.90 0.90 0.90 Hourly Flow Rate, HFR 22 1 33 1 1 5 Percent Heavy Vehicles 0 0 0 0 0 0 Percent Grade (%) 0 0 Flared Approach N /y Storage 0 0 RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LTR LTR Dela ,Queue Len th, and Level of Service pproach NB SB Westbound Eastbound Movement 1 4 7 8 9 10 11 12 Lane Configuration LTR LTR LTR LTR v (vph) 1 22 56 7 C (m) (vph) 1576 1405 828 887 Ic 0.00 0.02 0.07 0.01 95% queue length 0.00 0.05 0.22 0.02 Control Delay 7.3 7.6 9.7 9.1 LOS A A A A pproach Delay -- -- 9.7 9.1 pproach LOS -- -- A A HCS2000TM Copyright ©2003 University of Florida, All Rights Reserved Version 4.1d Two-Way Stop Control Page 1 of 1 TWO-WAY STOP CONTROL SUMMARY General Information Site Information nalyst gency/Co. Date Performed nal sis Time Period Geo Parametrix, Inc. 8/11/2004 PM Peak Hour Intersection Jurisdiction nalysis Year 2c City of Yelm 2006 with project Pro'ect Description Cullens Road Plat East/Vllest Street: Coates Road North/South Street: Cullens Road Intersection Orientation: North-South Stud Period hrs : 0.25 ehicle Volumes an d Ad'ustments Ma'or Street Northbound Southbound Movement 1 2 3 4 5 6 L T R L T R olume 1 90 95 20 55 1 Peak-Hour Factor, PHF 0.90 0.90 '0.90 0.90 0.90 0.90 Hourly Flow Rate, HFR 1 100 105 22 61 1 Percent Heavy Vehicles 0 -- -- 0 -- -- Median Type Undivided RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LTR LTR U stream Si nal 0 0 Minor Street Westbound Eastbound Movement 7 8 9 10 11 12 L T R L T R olume 20 1 35 1 1 5 Peak-Hour Factor, PHF 0.90 0.90 0.90 0.90 0.90 0.90 Hourly Flow Rate, HFR 22 1 38 1 1 5 Percent Heavy Vehicles 0 0 0 0 0 0 Percent Grade (%) 0 0 Flared Approach N N Storage 0 0 RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LTR LTR Dela ,Queue Len th, and Level of Service pproach NB SB Westbound Eastbound Movement 1 4 7 8 9 10 11 12 Lane Configuration LTR LTR LTR LTR (vph) 1 22 61 7 C (m) (vph) 1554 1378 802 854 v/c 0.00 0.02 0.08 0.0 ~ 95% queue length 0.00 0.05 0.25 0.02 Control Delay 7.3 7.7 9.9 9.3 LOS A A A A pproach Delay -- -- 9.9 g.3 pproach LOS -- -- A A HCS2000T'~ Copyright ©2003 University of Florida, All Rights Reserved Version 4.1d Two-Way Stop Control Page 1 of 2 TWO-WAY STOP CONTROL SUMMARY General Information Site Information nal st Geo enc /Co. Parametrix, Inc Date Performed 8/11/2004 nal sis Time Period PM Peak hour Pro'ect Descri tion Cu/lens Road Plaf East/West Street: Yelm Avenue (SR 510) Intersection Orientation: East-West ehicle Volumes and Ad'ustments Ma'or Street Eastbound Movement 1 2 L T olume (veh/h 70 815 Peak-hour factor, PHF 0.95 0.95 Hourly Flow Rate (veh/h) 73 857 Proportion of heavy _ 0 -- '~icles, PHv dian type Channelized? yes U stream Signal Minor Street Movement olume veh/h) Peak-hourfactor, PHF Hourly Flow Rate veh/h) Proportion of heavy ehicles, PHv Percent grade (%) Flared approach Storage RT Channelized? Lanes Configuration Control Dela , Queue pproach Movement Lane Configuration olume, v (vph) Capacity, cm (vph) v/c ratio Queue length (95%) Control Delay (s/veh) 0 1 LTR 0 Northbound 7 8 L T 1 1 0.95 0.95 1 1 0 0 0 N 0 0 1 LTR Len th, Level of Service EB WB 1 4 LTR LTR 73 15 949 775 0.08 0.02 0.25 0.06 9.1 9.7 Intersection 3a urisdiction Yelm/WSDOT nal sis Year Existin 2004 South Street: Cullens Road Period lhrs): 0.25 3 4 R L 25 15 0.95 0.95 26 15 -- 0 Undivided 0 0 0 LTR 9 10 R L 15 30 0.95 0.95 15 31 0 0 0 0 0 Northbound 7 8 9 LTR 17 231 0.07 0.24 21.8 Westbound 5 6 T R 585 30 0.95 0.95 615 31 0 1 0 0 Southbound 11 12 T R 1 50 0.95 0.95 1 52 0 0 0 N 0 0 1 0 LTR Southbound 10 11 12 LTR 84 134 0.63 3.30 68.9 file://C:\Documents%20and%20Settin~s\cramecan.001 \T.ncal%2(lSetting~\ Two-Way Stop Control Page 2 of 2 LOS A A C F pproach delay 27 8 68 9 (s/veh ) pproach LOS -- -- C F HCS2000~ Copyright ©2003 University ofFlorida, All Rights Reserved Version 4.Id Two-Way Stop Control Page 1 of 2 TWO-WAY STOP CONTROL SUMMARY General Information Site Information nai st Leo enc /Co. Parametrix, Inc Date Performed 8/11/2004 nal sis Time Period PM Peak hour Project Descri tion Cullens Road Plat East/West Street: Yelm Avenue (SR 510) Intersection Orientation: East-West ehicle Volumes and Ad'ustments Ma'or Street Eastbound Movement 1 2 L T olume (veh/h 95 890 Peak-hour factor, PHF 0.95 0.95 Hourly Flow Rate (veh/h) 100 936 Proportion of heavy vehicles, PHV 0 -- Median type RT Channelized? Lanes 1 1 Configuration L U stream Signal 0 Minor Street Northbound Movement 7 8 L T olume (veh/h) 1 1 Peak-hour factor, PHF 0.95 0.95 Hourly Flow Rate (veh/h) 1 1 Proportion of heavy vehicles, PHV 0 0 Percent grade (%) 0 Flared approach N Storage 0 RT Channelized? Lanes 0 1 Configuration LTR Control Dela ,Queue Len th, Level of Service pproach EB WB Movement 1 4 Lane Configuration L L olume, v (vph) 100 21 Capacity, Cm (vph) 867 724 v/c ratio 0.12 0.03 Queue length (95%) 0.39 0.09 Control Delay (s/veh) 9.7 10.1 Intersection 3b thru-left) urisdiction Yelm/WSDOT nal sis Year 2006 Withouf Project orth/South Street: Cullens Road tudv Period thrsl: 0.25 Westbound 3 4 5 6 R L T R 25 20 650 65 0.95 0.95 0.95 0.95 26 21 684 68 -- 0 -- -- Two Way Left Turn Lane 0 0 0 1 1 0 TR L TR 0 Southbound 9 10 11 12 R L T R 15 50 1 65 0.95 0.95 0.95 0.95 15 52 1 68 0 0 0 0 0 N 0 0 0 0 0 1 1 LT R Northbound Southbound 7 8 9 10 11 12 LTR LT R 17 53 68 272 130 432 0.06 0.41 0.16 0.20 1.75 0.55 19.1 50.6 14.9 file://C:\Documents%20and%20Settin~s\cramecan.001 \Lccal Two-Way Stop Control Page 2 of 2 LOS A 8 C F B pproach delay (s/veh) __ __ 19.1 30.5 pproach LOS -- -- C D HCS2000T'~"t Copyright ©2003 University of Florida, All Rights Reserved Version 4.1 d Two-Way Stop Control Page 1 of 2 (General Information nal st G enc /Co. Pa Date Performed 8/ nal sis Time Period PM Peak hour Project Description Cullens Road Plat East/West Street: Yelm Avenue (SR 510 North/South Street: Cullens Road Intersection Orientation: East-West Stud Period hrs): 0.25 ehicle Volumes and Ad'ustments Ma'or Street Eastbound Westbound Movement 1 2 3 4 5 6 L T R L T R olume veh/h 105 890 25 20 650 75 Peak-hour factor, PHF 0.95 0.95 0.95 0.95 0.95 0.95 Hourly Flow Rate (veh/h) 110 936 26 21 684 78 Proportion of heavy vehicles, f'HV 0 -- -- 0 -- -- Median type Two Way Left Turn Lane RT Channelized? 0 0 Lanes 1 1 0 1 1 0 Configuration L TR L TR U stream Signal 0 0 Minor Street Northbound Southbound Movement 7 8 9 10 11 12 L T R L T R olume (veh/h 1 1 15 55 1 70 Peak-hour factor, PHF 0.95 0.95 0.95 0.95 0.95 0.95 Hourly Flow Rate (veh/h) 1 1 15 57 1 73 Proportion of heavy ehicles, PHV 0 0 0 0 0 0 Percent grade (%) 0 0 Flared approach N N Storage 0 0 RT Channelized? 0 0 Lanes 0 1 0 1 1 0 Configuration LTR L TR Control Dela ,Queue Len th, Level of Service pproach EB WB Northbound Southbound Movement 1 4 7 8 9 10 11 12 Lane Configuration L L LTR L TR olume, v (vph) 110 21 17 57 74 Capacity, Cm (vph) 859 724 268 125 419 v/c ratio 0.13 0.03 0.06 0.46 0.18 Queue length (95%) 0.44 0.09 0.20 2.03 0.63 Control Delay (s/veh) 9.8 10.1 19.3 55.9 15.4 Yelm/WSDOT 2006 With Pro, TWO-WAY STOP CONTROL SUMMARY Site Information eo Intersection rametrix, Inc urisdiction 11/2004 nalvsis Year Two-Way Stop Control Page 2 of 2 LOS A 8 C F C pproach delay (s/veh) __ __ 19.3 33.1 pproach LOS -- -- C D HCS2000TM Copyright ©2003 University of Florida, All Rights Reserved Version 4.1 d APPENDIX C Traffic Signal Warrant Analysis APPENDIX C Traffic Signal Warrant Analysis Cullens Road/Yelm Avenue (SR 510) Donald Findlay is planning construction of the Cullens Road Plat, a 34-unit single-family residential development, in the City of Yelm. The project is expected to be completed and occupied by the year 2006 Most of the project traffic will use the Cullens RoadlYelm Avenue (SR 510) intersection to access the site. Based on analysis described in the report, the intersection is expected to experience a poor level of service for the southbound left-turn movement. When an intersection experiences a poor level of service an appropriate improvement maybe the implementation of a traffic signal system. The Manual on Uniform Traffic Control Devices by the Federal Highway Administration (FHWA) describes a list of warrants which, if met, may indicate the need for constructing a traffic signal. We have evaluated the intersection for each of eight warrants for the projected 2006 traffic volume scenario. Based on this analysis, no signal warrants are currently met. The following is a brief description of each of the eight warrants. Traffic Volume Notes: The traffic volume criteria can be reduced by 70% if the intersection is located within an isolated community of 10,000 or less. The 70% reduction was used based on that criterion. The 8th highest hourly volume and 4th highest hourly volumes were estimated based on the PM peak hour volume. The 8th hour was estimated as 60% of the PM peak hour and the 4th highest hour was estimated as 80% of the PM peak hour. The southbound approach of Cullens Road represents the highest minor street volume and was therefore used for this analysis. The southbound approach will be re-constructed to have a separate left-turn lane and a shared through-right lane. Because the southbound through movement is expected to be less than 5 vehicles during the PM peak hour, the southbound through-right lane is considered to operate as a `de facto' right-turn lane. The southbound right- turn movement traffic volumes were therefore removed from the southbound approach analysis volumes. Warrant 1, Eight-Hour Vehicular Volume This warrant addresses the ability of intersecting street traffic to enter the major street and is based on the eight highest hours of traffic during the day. Based on the values shown on Table 4C-1, this warrant is not met. Warrant 2, Four-Hour Vehicular Volume This warrant is intended to be applied where the volume of intersecting traffic is high and is based on the four highest hours of traffic during the day. The traffic volume criteria were also reduced by 70% for this analysis. Based on the values shown on Figure 4C-2, this warrant is not met. Warrant 3, Peak Hour This warrant is intended for use at a location where the minor street suffers excessive delay for at least one hour during a typical day. The traffic volume criteria were also reduced by 70% for this analysis because the traveled speed on the major street exceeds 40 mph. Based on the values shown on Figure 4C-4, this warrant is not met. Warrant 4, Pedestrian Volume This warrant is intended for application when the traffic volume is so heavy that pedestrians experience excessive delay crossing the street. The first criterion to consider is the pedestrian volume crossing the major street during a normal day. The specific criteria are 100 pedestrian crossings per hour for any four hours during the day, or 190 pedestrian crossings during one hour. There is no indication that pedestrian levels are near the thresholds listed above. Warrant 5, School Crossing There are two schools within one to two miles of the intersection, although none are directly adjacent. Bus service is provided within the area, and as noted in the description of Warrant 4, the pedestrian traffic at this location is currently not very high. Based on this information, it does not appear that Warrant 5 is met. Warrant 6, Coordinated Signal System There are no other signals nearby that would warrant construction of a signal at this location to maintain proper vehicle platooning. Warrant 7, Crash Experience This warrant is considered if five or more crashes have occurred at the intersection, in a 12-month period, of a type that would be correctable by signal control. Accident data has not been reviewed for this location; however, the planned Cullens Road/Yelm Avenue intersection lane improvements should improve the safety of the intersection. The accident occurrence at the intersection should be monitored after construction of the lane improvements. Warrant 8, Roadway Network This warrant was not evaluated for this study. Based on projected 2006 traffic conditions, construction of a traffic signal at the Cullens Road/Yelm Avenue (SR 510) intersection is not warranted. O:\cad\4520-002\signal warrant.doc