Appendix D Traffic Impact Analysis - westplainseis.com

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INTERSECTION SUMMARY Craig Rd./Hwy. 902 (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) 1569 veh/h 1893 pers/h Percent Heavy Vehicles 1.1 % Degree of Saturation 0.699 Practical Spare Capacity 21.6 % Effective Intersection Capacity 2245 veh/h Control Delay (Total) 4.12 veh-h/h 4.94 pers-h/h Control Delay (Average) 9.4 sec 9.4 sec Control Delay (Worst Lane) 12.7 sec Control Delay (Worst Movement) 16.8 sec 16.8 sec Geometric Delay (Average) 4.9 sec Stop-Line Delay (Average) 4.5 sec Level of Service (Aver. Int. Delay) LOS A Level of Service (Worst Movement) LOS B Level of Service (Worst Lane) LOS B 95% Back of Queue - Vehicles (Worst Lane) 8.7 veh 95% Back of Queue - Distance (Worst Lane) 220.1 ft Total Effective Stops 1221 veh/h 1465 pers/h Effective Stop Rate 0.78 per veh 0.77 per pers Proportion Queued 0.71 0.70 Performance Index 33.5 33.5 Travel Distance (Total) 575.9 veh-mi/h 691.1 pers-mi/h Travel Distance (Average) 1938 ft 1928 ft Travel Time (Total) 20.4 veh-h/h 24.4 pers-h/h Travel Time (Average) 46.7 sec 46.5 sec Travel Speed 28.3 mph 28.3 mph Cost (Total) 335.48 $/h 335.48 $/h Fuel Consumption (Total) 26.3 gal/h Carbon Dioxide (Total) 249.1 kg/h Hydrocarbons (Total) 0.410 kg/h Carbon Monoxide (Total) 18.34 kg/h NOx (Total) 0.571 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) 753,067 veh/y 908,480 pers/y Delay 1,977 veh-h/y 2,372 pers-h/y Effective Stops 585,993 veh/y 703,192 pers/y Travel Distance 276,436 veh-mi/y 331,724 pers-mi/y Travel Time 9,771 veh-h/y 11,725 pers-h/y Cost 161,029 $/y 161,029 $/y Fuel Consumption 12,630 gal/y Carbon Dioxide 119,576 kg/y Hydrocarbons 197 kg/y Carbon Monoxide 8,804 kg/y NOx 274 kg/y Processed: Tuesday, February 08, 2011 2:25:04 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\SR902-Craig Rd\Alt1-PH2-SR902.sip
MOVEMENT SUMMARY Craig Rd./Hwy. 902 (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 South: Craig Rd. 3L L 6 2.0 0.242 16.2 LOS B 1.5 38.7 0.65 0.95 28.6 8T T 140 2.0 0.241 9.0 LOS A 1.5 38.7 0.65 0.75 31.4 8R R 6 2.0 0.242 10.0 LOS B 1.5 38.7 0.65 0.79 31.4 Approach 151 2.0 0.241 9.3 LOS B 1.5 38.7 0.65 0.75 31.3 East: SR 902 1L L 16 1.0 0.519 14.5 LOS B 4.2 107.0 0.59 0.85 29.5 6T T 316 1.0 0.511 4.6 LOS A 4.2 107.0 0.59 0.51 29.0 6R R 126 1.0 0.512 6.7 LOS A 4.2 107.0 0.59 0.64 29.1 Approach 457 1.0 0.512 5.5 LOS B 4.2 107.0 0.59 0.56 29.0 North: Craig Rd. 7L L 152 1.0 0.698 16.8 LOS B 8.7 220.1 0.83 0.98 25.3 4T T 179 1.0 0.699 11.5 LOS B 8.7 220.1 0.83 0.89 29.5 4R R 218 1.0 0.698 10.9 LOS B 8.7 220.1 0.83 0.90 27.1 Approach 549 1.0 0.699 12.7 LOS B 8.7 220.1 0.83 0.92 27.2 West: SR 902 5L L 87 1.0 0.606 15.0 LOS B 5.4 136.7 0.71 0.99 26.3 2T T 316 1.0 0.605 8.0 LOS A 5.4 136.7 0.71 0.80 28.5 2R R 10 1.0 0.588 10.6 LOS B 5.4 136.7 0.71 0.85 30.7 Approach 412 1.0 0.604 9.6 LOS B 5.4 136.7 0.71 0.84 28.0 All Vehicles 1569 1.1 0.699 9.4 LOS A 8.7 220.1 0.71 0.78 28.3 Level of Service (Aver. Int. Delay): LOS A. Based on average delay for all vehicle movements. LOS Method: Delay (HCM). Level of Service (Worst Movement): LOS B. 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. Processed: Tuesday, February 08, 2011 2:25:04 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\SR902-Craig Rd\Alt1-PH2-SR902.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 411 and 412: 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
Page 443 and 444: INTERSECTION SUMMARY Middle Dwy./Hw
Page 447 and 448: 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
Page 510: QUEUE DISTANCE Largest 95% Back of
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MOVEMENT SUMMARY Craig Rd./6th Ave.
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MOVEMENT SUMMARY Craig Rd./Dwy. Nor
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QUEUE DISTANCE Largest 95% Back of
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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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