Appendix D Traffic Impact Analysis - westplainseis.com

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INTERSECTION SUMMARY Middle Dwy./Hwy. (YEAR 2032 PM PEAK, Alt 1 Buildout) West Plains Development Roundabout Site: Roundabout Intersection Performance - Hourly Values Performance Measure Vehicles Persons Demand Flows (Total) 6177 veh/h 7423 pers/h Percent Heavy Vehicles 1.0 % Degree of Saturation 1.702 Practical Spare Capacity -50.0 % Effective Intersection Capacity 3632 veh/h Control Delay (Total) 188.68 veh-h/h 226.41 pers-h/h Control Delay (Average) 110.0 sec 109.8 sec Control Delay (Worst Lane) 343.4 sec Control Delay (Worst Movement) 342.2 sec 342.2 sec Geometric Delay (Average) 5.0 sec Stop-Line Delay (Average) 105.0 sec Level of Service (Aver. Int. Delay) LOS F Level of Service (Worst Movement) LOS F Level of Service (Worst Lane) LOS F 95% Back of Queue - Vehicles (Worst Lane) 85.5 veh 95% Back of Queue - Distance (Worst Lane) 2154.9 ft Total Effective Stops 15381 veh/h 18457 pers/h Effective Stop Rate 2.49 per veh 2.49 per pers Proportion Queued 0.84 0.83 Performance Index 493.0 493.0 Travel Distance (Total) 2245.7 veh-mi/h 2694.9 pers-mi/h Travel Distance (Average) 1920 ft 1917 ft Travel Time (Total) 253.1 veh-h/h 303.7 pers-h/h Travel Time (Average) 147.5 sec 147.3 sec Travel Speed 8.9 mph 8.9 mph Cost (Total) 3358.81 $/h 3358.81 $/h Fuel Consumption (Total) 178.6 gal/h Carbon Dioxide (Total) 1690.4 kg/h Hydrocarbons (Total) 3.287 kg/h Carbon Monoxide (Total) 106.25 kg/h NOx (Total) 3.027 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) 2,965,044 veh/y 3,562,852 pers/y Delay 90,565 veh-h/y 108,678 pers-h/y Effective Stops 7,382,769 veh/y 8,859,322 pers/y Travel Distance 1,077,954 veh-mi/y 1,293,545 pers-mi/y Travel Time 121,481 veh-h/y 145,778 pers-h/y Cost 1,612,226 $/y 1,612,226 $/y Fuel Consumption 85,706 gal/y Carbon Dioxide 811,401 kg/y Hydrocarbons 1,578 kg/y Carbon Monoxide 50,999 kg/y NOx 1,453 kg/y Processed: Thursday, February 10, 2011 11:16:57 AM 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\2032 Alt1-Buildout-
MOVEMENT SUMMARY Middle Dwy./Hwy. (YEAR 2032 PM PEAK, Alt 1 Buildout) 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 1749 1.0 1.088 62.4 LOS E 47.7 1202.8 1.00 2.27 12.4 6R R 711 1.0 0.443 4.4 NA 9 NA 9 NA 9 NA 9 0.41 31.4 Approach 2460 1.0 1.088 45.6 LOS E 47.7 1202.8 0.71 1.73 15.2 North: Middle Dwy. 7L L 1051 1.0 1.701 342.2 LOS F 85.5 2154.9 1.00 3.80 3.7 4R R 228 1.0 0.142 4.3 NA 9 NA 9 NA 9 NA 9 0.41 31.4 Approach 1279 1.0 1.702 281.9 LOS F 85.5 2154.9 0.82 3.19 4.4 West: Hwy. 2 5L L 478 1.0 0.750 17.2 LOS B 7.1 178.8 0.84 1.07 24.6 2T T 1960 1.0 1.199 101.1 LOS F 66.7 1680.7 1.00 3.33 9.5 Approach 2438 1.0 1.198 84.6 LOS F 66.7 1680.7 0.97 2.88 10.9 All Vehicles 6177 1.0 1.702 110.0 LOS F 85.5 2154.9 0.84 2.49 8.9 Level of Service (Aver. Int. Delay): LOS F. Based on average delay for all vehicle movements. LOS Method: Delay (HCM). Level of Service (Worst Movement): LOS F. 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: Thursday, February 10, 2011 11:16:57 AM 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\2032 Alt1-Buildout- Middle.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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APPENDIX F SIDRA ANALYSIS WORKSHEET
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MOVEMENT SUMMARY Craig Rd./Hwy. (YE
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INTERSECTION SUMMARY Craig Rd./Hwy.
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QUEUE DISTANCE Largest 95% Back of
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MOVEMENT SUMMARY Craig Rd./Hwy. (YE
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INTERSECTION SUMMARY Craig Rd./Hwy.
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Page 440 and 441: MOVEMENT SUMMARY Craig Rd./Hwy. (YE
Page 443 and 444: INTERSECTION SUMMARY Middle Dwy./Hw
Page 445 and 446: QUEUE DISTANCE Largest 95% Back of
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Page 457: QUEUE DISTANCE Largest 95% Back of
Page 460 and 461: MOVEMENT SUMMARY Craig Rd./Hwy. 902
Page 462 and 463: INTERSECTION SUMMARY Craig Rd./Hwy.
Page 474 and 475: YEAR 2032 SIDRA ANALYSIS WORKSHEETS
Page 510: QUEUE DISTANCE Largest 95% Back of
Page 513 and 514: MOVEMENT SUMMARY Craig Rd./6th Ave.
Page 516 and 517: MOVEMENT SUMMARY Craig Rd./Dwy. Nor
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Page 524 and 525: 8 Hour-100%-Minimum Volume - Middle
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Page 528 and 529: 8 Hour-100%-Minimum Volume - SR-902
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Page 532: ADDENDUM TO TRAFFIC IMPACT ANALYSIS
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Page 537 and 538: In lieu of the various mitigations
Page 539 and 540: 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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