Appendix D Traffic Impact Analysis - westplainseis.com

Recommendations

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2032 Alternative 2 Mitigations (in addition to Alt. 2 2012 mitigations above): Hwy 2 / Lundstrom: Restripe and widen approaches to accommodate exclusive NB and SB right turn lanes. Consider restricting NB/SB left turns and adding EB/WB right turn lanes. Project Proportional Share: 18.9% Resulting LOS & Delay (sec): D/34.1 Hwy 2 / Lawson: Modify the signal timing. Add EB/WB right turn lanes, reconfigure N/S approaches. Project Proportional Share: 18.6% Resulting LOS & Delay (sec): D/37.4 Hwy 2 / Garfield: Optimize signal timing. Add EB right turn lane, add separate NB left turn lane, reconfigure SB approach. Project Proportional Share: 14.8% Resulting LOS & Delay (sec): E/57.2 Craig / Sixth Ave.: Widen the intersection approach to provide and exclusive NB right turn lane. Project Proportional Share: 25.6% Resulting LOS & Delay (sec): D/28.5 Hwy 2 / Fairchild AFB: Modify signal timing. Add NB left turn lane and WB thru lane. Project Proportional Share: 8.2% Resulting LOS & Delay (sec): D/50.6 2032 Alternative 3 Mitigations (in addition to Alt. 3 mitigations above): Hwy 2 / Lundstrom: Restripe and widen approaches to accommodate exclusive NB and SB right turn lanes. Consider restricting NB/SB left turns and adding EB/WB right turn lanes. Project Proportional Share: 16.3% Resulting LOS & Delay (sec): D/32.4 Hwy 2 / Lawson: Modify the signal timing. Reconfigure N/S approaches. Project Proportional Share: 16.0% Resulting LOS & Delay (sec): D/37.0 Hwy 2 / Garfield: Optimize signal timing. Add EB right turn lane, add separate NB left turn lane, reconfigure SB approach. Project Proportional Share: 12.7% Resulting LOS & Delay (sec): D/49.4 Hwy 2 / Hayford: Convert the inside SB thru lane to a 2 nd SB left turn lane. Project Proportional Share: 9.3% Resulting LOS & Delay (sec): F/141.4 Craig / SR 902: Install traffic signal or consider installation of a roundabout. Project Proportional Share: 17.4% Resulting LOS & Delay (sec): B/17.2 / B/10.7 (roundabout) Hwy 2 / Fairchild AFB: Modify signal timing. Add NB left turn lane and WB thru lane. Project Proportional Share: 6.9% Resulting LOS & Delay (sec): D/48.9 Operational analysis results for all three alternatives for the improvements identified above are summarized in the ‘mitigation’ tables included at the end of this Executive Summary. General Recommendations Applying to All Project Alternatives Roadway frontage improvements and driveway approaches including curb & gutter and sidewalks or shared use pathways should be constructed along the site frontages and should comply with current West Plains Development – Spokane Tribe Page | 8 Traffic Impact Analysis April 28, 2011
County, WSDOT and/or City of Airway Heights roadway standards. Said improvements should be constructed as adjacent areas of the subject site are developed. The Spokane Tribe should work with the Spokane Transit Authority to identify opportunities to provide transit access near the project site. Furthermore, the Tribe should look to reduce vehicular trips to/from the site through employee trip reductions programs, employee shuttles and other similar means of achieving commute trip reduction. West Plains Development – Spokane Tribe Page | 9 Traffic Impact Analysis April 28, 2011
Page 1 and 2: APPENDIX D TRAFFIC IMPACT ANALYSIS
Page 4 and 5: TABLE OF CONTENTS 1. EXECUTIVE SUMM
Page 6 and 7: Table 7. Alternative 1 - PM Peak Ho
Page 8 and 9: • 10,480-square-foot Tribal Cultu
Page 10 and 11: Hwy. 2 / Hayford Rd. S 2012 - Phase
Page 12 and 13: Hwy 2 / Lundstrom: Restripe and wid
Page 16 and 17: Table ES- 2. Operational Analysis S
Page 18 and 19: Table ES- 4. Operational Analysis S
Page 20 and 21: INTERSECTION MITIGATION - ALTERNATI
Page 22 and 23: MITIGATION-ALT 2, CONTINUED 2012 PM
Page 24 and 25: MITIGATION-ALT 3, CONTINUED INTERSE
Page 26 and 27: • 41,633-square-foot commercial d
Page 28 and 29: Project Site J 908 N. Howard St. St
Page 30 and 31: J Map from Friedmutter Group, Decem
Page 32 and 33: 2.5 Methodology The weekday PM peak
Page 34 and 35: 2.7 Applicable Standards, Policies
Page 36 and 37: 3. EXISTING CONDITIONS 3.1 Street N
Page 39: 3.5 Traffic Volumes The bulk of int
Page 42: Pipeline Project Description and As
Page 46: 4.4 Operational Analysis and Level
Page 50 and 51: 5. TRIP GENERATION and DISTRIBUTION
Page 52 and 53: 5.3 Trip Generation - Alternative 2
Page 54 and 55: 5.6 Trip Reductions and Net New Tri
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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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INTERSECTION SUMMARY Middle Dwy./Hw
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MOVEMENT SUMMARY Middle Dwy./Hwy. (
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MOVEMENT SUMMARY Craig Rd./Hwy. 902
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YEAR 2032 SIDRA ANALYSIS WORKSHEETS
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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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