Appendix D Traffic Impact Analysis - westplainseis.com

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HCM Signalized Intersection Capacity Analysis 11: Hwy. 2 & Fairchild AFB 2/14/2011 Movement EBT EBR WBL WBT NBL NBR Lane Configurations Volume (vph) 703 60 576 775 439 1193 Ideal Flow (vphpl) 1900 1900 1900 1900 1900 1900 Total Lost time (s) 6.0 6.0 6.0 6.0 4.0 4.0 Lane Util. Factor 0.95 1.00 0.97 1.00 1.00 1.00 Frt 1.00 0.85 1.00 1.00 1.00 0.85 Flt Protected 1.00 1.00 0.95 1.00 0.95 1.00 Satd. Flow (prot) 3471 1553 3467 1881 1805 1615 Flt Permitted 1.00 1.00 0.95 1.00 0.95 1.00 Satd. Flow (perm) 3471 1553 3467 1881 1805 1615 Peak-hour factor, PHF 0.72 0.72 0.72 0.72 0.72 0.72 Adj. Flow (vph) 976 83 800 1076 610 1657 RTOR Reduction (vph) 0 61 0 0 0 0 Lane Group Flow (vph) 976 22 800 1076 610 1657 Heavy Vehicles (%) 4% 4% 1% 1% 0% 0% Turn Type Perm Prot Free Protected Phases 6 5 2 4 Permitted Phases 6 Free Actuated Green, G (s) 23.0 23.0 19.0 48.0 27.0 85.0 Effective Green, g (s) 23.0 23.0 19.0 48.0 27.0 85.0 Actuated g/C Ratio 0.27 0.27 0.22 0.56 0.32 1.00 Clearance Time (s) 6.0 6.0 6.0 6.0 4.0 Vehicle Extension (s) 3.0 3.0 3.0 3.0 3.0 Lane Grp Cap (vph) 939 420 775 1062 573 1615 v/s Ratio Prot 0.28 0.23 0.57 0.34 v/s Ratio Perm 0.01 c1.03 v/c Ratio 1.04 0.05 1.03 1.01 1.06 1.03 Uniform Delay, d1 31.0 22.9 33.0 18.5 29.0 42.5 Progression Factor 1.00 1.00 1.00 1.00 1.00 1.00 Incremental Delay, d2 40.1 0.1 40.9 30.9 56.0 29.3 Delay (s) 71.1 23.0 73.9 49.4 85.0 71.8 Level of Service E C E D F E Approach Delay (s) 67.3 59.9 75.3 Approach LOS E E E Intersection Summary HCM Average Control Delay 68.1 HCM Level of Service E HCM Volume to Capacity ratio 1.03 Actuated Cycle Length (s) 85.0 Sum of lost time (s) 0.0 Intersection Capacity Utilization 73.5% ICU Level of Service D Analysis Period (min) 15 c Critical Lane Group West Plains Development Traffic Impact Analysis 5:00 pm 2/8/2011 2032 Alternative 3 Buildout Synchro 7 - Report Page 11
HCM Unsignalized Intersection Capacity Analysis 12: 6th Ave & Craig Road 2/14/2011 Movement WBL WBR NBT NBR SBL SBT Lane Configurations Volume (veh/h) 245 0 540 324 0 410 Sign Control Stop Free Free Grade 0% 0% 0% Peak Hour Factor 0.92 0.92 0.92 0.92 0.92 0.92 Hourly flow rate (vph) 266 0 587 352 0 446 Pedestrians Lane Width (ft) Walking Speed (ft/s) Percent Blockage Right turn flare (veh) 4 Median type TWLTL None Median storage veh) 2 Upstream signal (ft) pX, platoon unblocked vC, conflicting volume 1209 763 939 vC1, stage 1 conf vol 763 vC2, stage 2 conf vol 446 vCu, unblocked vol 1209 763 939 tC, single (s) 6.4 6.2 4.1 tC, 2 stage (s) 5.4 tF (s) 3.5 3.3 2.2 p0 queue free % 34 100 100 cM capacity (veh/h) 405 404 730 Direction, Lane # WB 1 NB 1 SB 1 SB 2 Volume Total 266 939 0 446 Volume Left 266 0 0 0 Volume Right 0 352 0 0 cSH 403 1700 1700 1700 Volume to Capacity 0.66 0.55 0.00 0.26 Queue Length 95th (ft) 115 0 0 0 Control Delay (s) 29.8 0.0 0.0 0.0 Lane LOS D Approach Delay (s) 29.8 0.0 0.0 Approach LOS D Intersection Summary Average Delay 4.8 Intersection Capacity Utilization 68.4% ICU Level of Service C Analysis Period (min) 15 West Plains Development Traffic Impact Analysis 5:00 pm 2/8/2011 2032 Alternative 3 Buildout Synchro 7 - Report Page 12
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APPENDIX D TRAFFIC IMPACT ANALYSIS
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TABLE OF CONTENTS 1. EXECUTIVE SUMM
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Table 7. Alternative 1 - PM Peak Ho
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• 10,480-square-foot Tribal Cultu
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Hwy. 2 / Hayford Rd. S 2012 - Phase
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Hwy 2 / Lundstrom: Restripe and wid
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2032 Alternative 2 Mitigations (in
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Table ES- 2. Operational Analysis S
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Table ES- 4. Operational Analysis S
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INTERSECTION MITIGATION - ALTERNATI
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MITIGATION-ALT 2, CONTINUED 2012 PM
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MITIGATION-ALT 3, CONTINUED INTERSE
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• 41,633-square-foot commercial d
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Project Site J 908 N. Howard St. St
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J Map from Friedmutter Group, Decem
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2.5 Methodology The weekday PM peak
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2.7 Applicable Standards, Policies
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3. EXISTING CONDITIONS 3.1 Street N
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3.5 Traffic Volumes The bulk of int
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Pipeline Project Description and As
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4.4 Operational Analysis and Level
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5. TRIP GENERATION and DISTRIBUTION
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5.3 Trip Generation - Alternative 2
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5.6 Trip Reductions and Net New Tri
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5.7 Trip Distribution (Proposed Pro
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6.1.2 ALTERNATIVE 1 - 2015 Phase 2
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6.1.4 ALTERNATIVE 1 - MITIGATION Th
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Listed below are improvements recom
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6.1.5 ALTERNATIVE 2 - 2012 Buildout
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MITIGATION-ALT 2, CONTINUED 2012 PM
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6.1.8 ALTERNATIVE 3 - MITIGATION Th
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The Spokane Tribe should work with
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Table 22. Level of Service for 2032
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Alternative 3 is projected to gener
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2032 Alternative 2 Mitigations:
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8. CONCLUSIONS Based upon the techn
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9. RECOMMENDATIONS Mitigation recom
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Hwy 2 / Hayford: Optimize signal ti
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Hwy 2 / Fairchild AFB: Modify signa
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APPENDIX A TRAFFIC COUNT DATA Appen
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PROJECT: West Plains Development DA
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1 PROJECT: DAVID EVANS and ASSOCIAT
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PROJECT: Project Location INTERSECT
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Pipeline (Year 2012) Int. # INTERSE
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APPENDIX C TRIP GENERATION/INTERNAL
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TRIP GENERATION LAND USE: SHOPPING
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TRIP GENERATION LAND USE: Quality S
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TRIP GENERATION LAND USE: POLICE ST
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ITE Multi-Use Project Internal Capt
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APPENDIX E SYNCHRO WORKSHEETS Appen
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HCM Unsignalized Intersection Capac
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HCM Signalized Intersection Capacit
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APPENDIX E4 YEAR 2019 EXISTING PLUS
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APPENDIX E6 ALTERNATIVE 1 YEAR 2015
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YEAR 2032 SYNCHRO WORKSHEETS Append
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Page 359 and 360: HCM Unsignalized Intersection Capac
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Page 425: APPENDIX F SIDRA ANALYSIS WORKSHEET
Page 428 and 429: MOVEMENT SUMMARY Craig Rd./Hwy. (YE
Page 430 and 431: INTERSECTION SUMMARY Craig Rd./Hwy.
Page 432 and 433: QUEUE DISTANCE Largest 95% Back of
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Page 443 and 444: INTERSECTION SUMMARY Middle Dwy./Hw
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Page 457: QUEUE DISTANCE Largest 95% Back of
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MOVEMENT SUMMARY Craig Rd./Hwy. 902
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INTERSECTION SUMMARY Craig Rd./Hwy.
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QUEUE DISTANCE Largest 95% Back of
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YEAR 2032 SIDRA ANALYSIS WORKSHEETS
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MOVEMENT SUMMARY Craig Rd./Hwy. (YE
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MOVEMENT SUMMARY Craig Rd./Hwy. (YE
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MOVEMENT SUMMARY Middle Dwy./Hwy. (
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INTERSECTION SUMMARY Middle Dwy./Hw
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INTERSECTION SUMMARY Middle Dwy./Hw
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MOVEMENT SUMMARY Craig Rd./6th Ave.
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MOVEMENT SUMMARY Craig Rd./Dwy. Nor
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8 Hour-100%-Minimum Volume - Craig-
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8 Hour-100%-Minimum Volume - Craig-
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8 Hour-100%-Minimum Volume - Middle
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8 Hour-100%-Minimum Volume - Middle
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8 Hour-100%-Minimum Volume - SR-902
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8 Hour-100%-Minimum Volume - SR-902
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ADDENDUM TO TRAFFIC IMPACT ANALYSIS
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overall site plan would not be sign
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In lieu of the various mitigations
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Project Proportional Share: 29.8% F
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Hwy 2 / Fairchild AFB: Modify signa
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Attachment B: Two Roundabout Access
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Attachment C: Operational Analysis
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LEVEL OF SERVICE SUMMARY West Dwy./
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MOVEMENT SUMMARY West Dwy./Hwy. (YE
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MOVEMENT SUMMARY West Dwy./Hwy. (YE
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MOVEMENT SUMMARY West RB 2032 Alt.1
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LEVEL OF SERVICE SUMMARY West RB 20
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MOVEMENT SUMMARY West RB 2032 Alt.3
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LEVEL OF SERVICE SUMMARY Middle Dwy
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LEVEL OF SERVICE SUMMARY Craig Rd./
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Appendix D Traffic Impact Analysis - westplainseis.com

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