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

City Council Meeting December 12, 2017

Transportation Update

D E P A R T M E N T O F

PUBLIC WORKS

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Agenda

• Outcomes of the

November 28th Technical Meeting

• Concurrency next steps
• Transportation Master Plan

next steps

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Technical Meeting #2 November 28th

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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

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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

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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

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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

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Concurrency Next Steps

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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

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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

Concurrency | Develop AM Model

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• 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

Concurrency | Develop AM Model

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Transportation Master Plan Key Milestones

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Thank you!

www.sammamish-tmp.com