Transportation Update City Council Meeting December 12, 2017 2 - PowerPoint PPT Presentation

D E P A R T M E N T O F PUBLIC WORKS Transportation Update City Council Meeting December 12, 2017

2 Agenda • Outcomes of the November 28 th Technical Meeting • Concurrency next steps • Transportation Master Plan next steps

3 Technical Meeting #2 November 28th

4 Technical Meeting | Council Decisions • Leverage innovative data sources • Intersection-only concurrency policy • TMP will establish levels of service for walking, biking, and transit, and ensure improvements are eligible for impact fees

5 Technical Meeting | Nov. 28 | Innovative Data • Leverage innovative data to better understand transportation issues ─ INRIX speed data ─ Cellphone data ─ Transit performance data • City purchased INRIX data to monitor travel patterns and hot spots • Other available data will be identified through TMP

6 Technical Meeting | Nov. 28 | Concurrency Policy • Revise City Concurrency program to consider intersections only ─ Remove Table T-8 ─ Adopt standards for intersection performance during AM and PM peak hour ─ Reasonable proxy for driver experience ─ City may eventually shift concurrency to measures like travel time and speed

7 Technical Meeting | Nov. 28 | Multimodal Projects • TMP will establish a LOS for walking, biking and transit • TMP will ensure multimodal projects are eligible for impact fees • City will have more flexibility and control in where to build sidewalks, bike lanes, trails, and transit improvements

8 Concurrency Next Steps

9 Concurrency | Next Steps • Options on how to structure an intersection-based concurrency policy: 1. Intersection-wide delay for AM and PM peak hours 2. Worst-approach delay for AM and PM peak hours (with some refinements to ensure low volume approaches do not determine the need for investment) • Report back on how each option achieves the City’s goals in January

10 Concurrency | Develop AM Model AM travel demand model would be developed to: ─ Forecast volumes in AM under base year of 2016 ─ Forecast volumes in AM in near-term conditions with approved pipeline growth ─ Forecast volumes in the AM for the planning horizon year of 2035

11 Concurrency | Develop AM Model • Cost is $50,000 – $100,000 • Benefits: ─ Evaluate impacts of morning school traffic ─ Consistent and defensible way to evaluate developments’ impact on the system in AM peak hour • Incorporate into revised draft concurrency policy by the end of the Q1 2018 • Model would be used in the TMP planning process

12 Transportation Master Plan Key Milestones

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14 Thank you! www.sammamish-tmp.com