Seattle's 2019 - 2023 CTR Strategic Plan

Strategic Plan Overview

Seattle's Commute Trip Reduction (CTR) program plays a crucial role in the city's effort to reduce congestion and provide mobility choices. The CTR program is a key transportation demand management effort toward mitigating the impacts of population and employment growth while facilitating a thriving business environment, diverse travel choices, and a reduction in transportation emissions. 

The 2019-2023 CTR Strategic Plan was adopted by City Council on July 30th, 2019. This document establishes the vision for Seattle's program. The plan sets program performance targets and identifies program priorities and strategies for five years. It also includes a full analysis of the progress we made over the last few years, including both performance and program improvements. It outlines metrics and means for strengthening the program and measuring our progress  

The planning team's analysis indicated how the program should evolve by adapting to the changing city and its commuting patterns. This Plan includes both revised network geographies and new Drive Alone Rate (DAR) targets from the previous, 2013-2018 strategic plan.

You can Read the Plan here. You can also refer to the Executive Summary for a short overview.

CTR Networks

As in previous plans, the city is divided into geographic areas, called networks, for the purposes of target setting. Each network is assigned a target Drive Alone Rate (DAR) that CTR-affected employers located within that network will work to achieve. You can also refer to the 2013-2018 Networks and Targets to view information about the previous program period.

CTR Network Targets

Drive Alone Rate (DAR) targets are established for the future to achieve Seattle's overall mode split goals. Each area of the city is assigned a target that all CTR-affected employers within a given network work to achieve. The achievement of all network targets together means that the city reaches its overall goal of 25%, as established by the Seattle 2035 Comprehensive Plan.

Network Area 2017/2018* 2019/2020 2023/2024 2035/2036
Elliott Corridor/Interbay 53.6% 52.0% 49.1% 42.4%
East Seattle 49.3% 48.7% 47.6% 45.3%
Fremont/Green Lake 48.1% 47.5% 46.2% 43.5%
Northgate 69.0% 65.5% 59.4% 46.9%
South Seattle 65.2% 63.5% 60.4% 53.4%
U District 31.0% 30.4% 29.2% 26.6%
Pioneer Square & Chinatown/International District 21.9% 21.4% 20.4% 18.1%
South Lake Union & Uptown 28.1% 26.8% 24.5% 19.7%
Belltown & Denny Triangle 21.1% 20.0% 18.0% 14.1%
Capitol Hill, Pike/Pine, & First Hill 43.5% 42.9% 41.6% 38.9%
Commercial Core 15.8% 15.6% 15.2% 14.4%
Citywide 31.5% 30.6% 28.8% 25.0%

* These DAR rates reflect the most recent survey results, adjusted to account for redrawn network boundaries for the 2019/2023 Strategic Plan. The 2017/2018 figures are for presentation purposes only.

Center City Neighborhoods and Targets

In addition to the CTR Strategic Plan and its DAR targets, the City and its partners have committed to a vision for Seattle's core through the One Center City initiative. Center City neighborhoods are a subset of the updated CTR networks, and the 2019-2023 CTR Strategic Plan provides a subset of future full-market DAR targets for these specific neighborhoods. See the final page of our Executive Summary or page 27 of the full Plan for more information on our targets for the Center City.


Greg Spotts, Director
Address: 700 5th Ave, Suite 3800, Seattle, WA, 98104
Mailing Address: PO Box 34996, Seattle, WA, 98124-4996
Phone: (206) 684-7623

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The Seattle Department of Transportation (SDOT) is on a mission to deliver a transportation system that provides safe and affordable access to places and opportunities for everyone as we work to achieve our vision of Seattle as a thriving, equitable community powered by dependable transportation.