Apx_B_Transporation_TechReport_Sept_2021
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Apx_B_Transporation_TechReport_Sept_2021
Appendix BRapidRide Roosevelt Project Supplemental Transportation Technical ReportRAPIDRIDE ROOSEVELT PROJECT SUPPLEMENTAL TRANSPORTATION TECHNICAL RE Apx_B_Transporation_TechReport_Sept_2021EPORTPrepared forSeattle Department of TransportationXAJIs SeattleLJ| p Department of1 Transportation44440This page intentionally left blank.EXECUTIVE SUMMARYIntroductionThis Executive Summary highlights the transportation effects associated with the u District Option (also called the Build Alternat Apx_B_Transporation_TechReport_Sept_2021ive in this report) on the transportation system. A broad set of transportation elements were analyzed to compare the u District Option to the No BuilApx_B_Transporation_TechReport_Sept_2021
d Alternative condition.The u District Option would provide increased service frequency over existing transit service in the corridor and would extendAppendix BRapidRide Roosevelt Project Supplemental Transportation Technical ReportRAPIDRIDE ROOSEVELT PROJECT SUPPLEMENTAL TRANSPORTATION TECHNICAL RE Apx_B_Transporation_TechReport_Sept_2021 and until 10 PM on weekdays. Weekend headways would range from 10 to 15 minutes. Overnight service would be provided 7 days per week.The u District Option would have minor new operational transportation impacts and benefits compared to those discussed in the RapidRide Roosevelt Environmental Assess Apx_B_Transporation_TechReport_Sept_2021ment ("January 2020 EA") (SDOT, 2020). There would be no additional construction impacts from those discussed in the January 2020 EA.Impact SummaryTheApx_B_Transporation_TechReport_Sept_2021
following transportation elements were analyzed in this Transportation Technical Report:•Transit•Arterial and Local Streets•Pedestrians and BicyclistAppendix BRapidRide Roosevelt Project Supplemental Transportation Technical ReportRAPIDRIDE ROOSEVELT PROJECT SUPPLEMENTAL TRANSPORTATION TECHNICAL RE Apx_B_Transporation_TechReport_Sept_2021 and Freight, were determined to have no substantial impacts or changes due to the u District Option and are therefore not discussed in this summary.Regional Traffic and Roadways was a transportation element assessed in the January 2020 EA but is not included in the Supplemental EA because the u Dis Apx_B_Transporation_TechReport_Sept_2021trict Option is not expected to affect regional traffic and the regional roadway system. Similarly, this Transportation Technical Report does not inclApx_B_Transporation_TechReport_Sept_2021
ude data applicable to the screenlines documented in the January 2020 EA because those are located outside the u District Option study area.TransitTheAppendix BRapidRide Roosevelt Project Supplemental Transportation Technical ReportRAPIDRIDE ROOSEVELT PROJECT SUPPLEMENTAL TRANSPORTATION TECHNICAL RE Apx_B_Transporation_TechReport_Sept_2021mprovements that would benefit transit travel time and reliability in the University District, including:•A new signal at Roosevelt Way NE and NE 43rd St with transit signal priority (TSP) and/or adaptive control technologyEXECUTIVE SUMMARY•Operational improvements at stations, including all-door bo Apx_B_Transporation_TechReport_Sept_2021arding•Protected bicycle lanes (PBLs) on NE 43rd St, reducing interactions between buses and bicycles•Optimization of stop spacing (which may includeApx_B_Transporation_TechReport_Sept_2021
consolidation of stops) between each transit stop pairBesides the transit improvements, the u District Option would travel about a 1/3 of a mile less Appendix BRapidRide Roosevelt Project Supplemental Transportation Technical ReportRAPIDRIDE ROOSEVELT PROJECT SUPPLEMENTAL TRANSPORTATION TECHNICAL RE Apx_B_Transporation_TechReport_Sept_2021 would travel through eight fewer traffic signals. Route 70 would travel through 19 signalized intersections in the University District while the u District Option would travel through 11 signalized intersections. Therefore, the travel times in the University District are estimated to provide betwee Apx_B_Transporation_TechReport_Sept_2021n a 2- to 4-minute in-vehicle travel time savings, depending on direction.Appendix BRapidRide Roosevelt Project Supplemental Transportation Technical ReportRAPIDRIDE ROOSEVELT PROJECT SUPPLEMENTAL TRANSPORTATION TECHNICAL REAppendix BRapidRide Roosevelt Project Supplemental Transportation Technical ReportRAPIDRIDE ROOSEVELT PROJECT SUPPLEMENTAL TRANSPORTATION TECHNICAL REGọi ngay
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