Appendix D Traffic Impact Analysis - westplainseis.com

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INTERSECTION SUMMARY Middle Dwy./Hwy. (YEAR 2015 PM PEAK, ALT.1,PH.2) West Plains Development Roundabout Site: Roundabout Intersection Performance - Hourly Values Performance Measure Vehicles Persons Demand Flows (Total) 4599 veh/h 5529 pers/h Percent Heavy Vehicles 1.0 % Degree of Saturation 0.987 Practical Spare Capacity -13.9 % Effective Intersection Capacity 4660 veh/h Control Delay (Total) 23.79 veh-h/h 28.55 pers-h/h Control Delay (Average) 18.6 sec 18.6 sec Control Delay (Worst Lane) 36.4 sec Control Delay (Worst Movement) 35.3 sec 35.3 sec Geometric Delay (Average) 5.2 sec Stop-Line Delay (Average) 13.4 sec Level of Service (Aver. Int. Delay) LOS B Level of Service (Worst Movement) LOS D Level of Service (Worst Lane) LOS D 95% Back of Queue - Vehicles (Worst Lane) 18.9 veh 95% Back of Queue - Distance (Worst Lane) 475.9 ft Total Effective Stops 5203 veh/h 6243 pers/h Effective Stop Rate 1.13 per veh 1.13 per pers Proportion Queued 0.78 0.78 Performance Index 130.8 130.8 Travel Distance (Total) 1678.9 veh-mi/h 2014.7 pers-mi/h Travel Distance (Average) 1928 ft 1924 ft Travel Time (Total) 71.9 veh-h/h 86.3 pers-h/h Travel Time (Average) 56.3 sec 56.2 sec Travel Speed 23.3 mph 23.3 mph Cost (Total) 1118.24 $/h 1118.24 $/h Fuel Consumption (Total) 80.6 gal/h Carbon Dioxide (Total) 763.0 kg/h Hydrocarbons (Total) 1.296 kg/h Carbon Monoxide (Total) 54.78 kg/h NOx (Total) 1.658 kg/h LOS (Aver. Int. Delay) for Vehicles is based on average delay for all vehicle movements. LOS Method: Delay (HCM). LOS Method for individual vehicle movements and lanes: Delay (HCM). Roundabout LOS Method: Same as Signalised Intersections. Roundabout Capacity Model: SIDRA Standard. Intersection Performance - Annual Values Performance Measure Vehicles Persons Demand Flows (Total) 2,207,478 veh/y 2,653,774 pers/y Delay 11,420 veh-h/y 13,705 pers-h/y Effective Stops 2,497,310 veh/y 2,996,772 pers/y Travel Distance 805,880 veh-mi/y 967,056 pers-mi/y Travel Time 34,526 veh-h/y 41,431 pers-h/y Cost 536,757 $/y 536,757 $/y Fuel Consumption 38,686 gal/y Carbon Dioxide 366,251 kg/y Hydrocarbons 622 kg/y Carbon Monoxide 26,295 kg/y NOx 796 kg/y Processed: Tuesday, February 08, 2011 2:54:01 PM Copyright © 2000-2010 Akcelik & Associates Pty Ltd SIDRA INTERSECTION 5.0.5.1510 www.sidrasolutions.com Project: P:\S\SPTR00000001\0600INFO\Traffic\February-2011-TIA\Sidra\Hwy.2-Middle Dwy\Alt1-PH2.sip
MOVEMENT SUMMARY Middle Dwy./Hwy. (YEAR 2015 PM PEAK, ALT.1,PH.2) West Plains Development Roundabout Site: Roundabout Movement Performance - Vehicles Mov ID Turn Demand Deg. Average Level of 95% Back of Queue Prop. Effective Average Flow HV Satn Delay Service Vehicles Distance Queued Stop Rate Speed veh/h % v/c sec veh ft per veh mph East: Hwy. 2 6T T 1211 1.0 0.699 8.2 LOS A 9.1 229.7 0.86 0.90 27.9 6R R 586 1.0 0.365 4.3 NA 9 NA 9 NA 9 NA 9 0.41 31.4 Approach 1797 1.0 0.699 7.0 LOS A 9.1 229.7 0.58 0.74 29.0 North: Middle Dwy. 7L L 874 1.0 0.938 35.3 LOS D 13.0 326.4 0.98 1.44 18.8 4R R 189 1.0 0.118 4.3 NA 9 NA 9 NA 9 NA 9 0.41 31.4 Approach 1063 1.0 0.938 29.8 LOS D 13.0 326.4 0.81 1.25 20.1 West: Hwy. 2 5L L 398 1.0 0.693 16.8 LOS B 5.6 140.9 0.83 1.04 24.8 2T T 1341 1.0 0.987 26.0 LOS C 18.9 475.9 1.00 1.59 20.7 Approach 1739 1.0 0.987 23.9 LOS C 18.9 475.9 0.96 1.46 21.6 All Vehicles 4599 1.0 0.987 18.6 LOS B 18.9 475.9 0.78 1.13 23.3 Level of Service (Aver. Int. Delay): LOS B. Based on average delay for all vehicle movements. LOS Method: Delay (HCM). Level of Service (Worst Movement): LOS D. LOS Method for individual vehicle movements: Delay (HCM). Approach LOS values are based on the worst delay for any vehicle movement. Roundabout LOS Method: Same as Signalised Intersections. Roundabout Capacity Model: SIDRA Standard. 9 Continuous movement Processed: Tuesday, February 08, 2011 2:54:01 PM Copyright © 2000-2010 Akcelik & Associates Pty Ltd SIDRA INTERSECTION 5.0.5.1510 www.sidrasolutions.com Project: P:\S\SPTR00000001\0600INFO\Traffic\February-2011-TIA\Sidra\Hwy.2-Middle Dwy\Alt1-PH2.sip 8000011, DAVID EVANS & ASSOCIATES INC, SINGLE
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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 395 and 396: HCM Signalized Intersection Capacit
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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
Page 443 and 444: INTERSECTION SUMMARY Middle Dwy./Hw
Page 445: QUEUE DISTANCE Largest 95% Back of
Page 453 and 454: MOVEMENT SUMMARY Middle Dwy./Hwy. (
Page 457: QUEUE DISTANCE Largest 95% Back of
Page 460 and 461: MOVEMENT SUMMARY Craig Rd./Hwy. 902
Page 474 and 475: YEAR 2032 SIDRA ANALYSIS WORKSHEETS
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INTERSECTION SUMMARY Middle Dwy./Hw
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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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MOVEMENT SUMMARY Craig Rd./Hwy. 902
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INTERSECTION SUMMARY Craig Rd./Hwy.
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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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MOVEMENT SUMMARY Middle Dwy./Hwy. (
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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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