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2008 Citizens' Guide to Sound Transit, Phase 2

by Michael Ennis
Director, Center for Transportation

September 2008


Introduction

This November, voters in King, Pierce and Snohomish Counties will again decide on whether to expand Sound Transit’s regional mass transportation system. The new Sound Transit proposal (ST2) would add 36 miles of light rail,
expand the Sounder commuter rail by four daily round trips between Tacoma and Seattle and expand the Express bus system by 17 percent. Sound Transit officials say that, if passed, ST2 would cost about $17.8 billion through 2023
and $22.8 billion through 2037. The proposal would impose a 0.5 percent sales tax increase within the Sound Transit district, which incorporates most of King, Pierce and Snohomish Counties. The total sales tax rate would vary among jurisdictions, but Seattle would rise from 9 percent to 9.5 percent.

Key Findings

• ST2 would spend about $22.8 billion, yet serve only 0.4 percent of all trips in 2030.

• ST2 would shift only 0.84 percent of passenger vehicles from the road to transit by 2030.

• ST2 would spend $22.8 billion to reduce VMT by only 0.867 percent.

• The cost for ST2 to serve one additional trip would be about $368,000. Under Transit Now, the cost for King County to serve one additional trip is about $10,000.

• The ST2 proposal would be 37 times less efficient than a traditional bus system like the one in King County.

• ST2 would increase traffic congestion for passenger cars and freight trucks by about 25 percent across the I-90 bridge.

• ST2 would reduce lane capacity on I-90 by 20 percent during the morning and afternoon peak commute periods.

• ST2 would eliminate subarea equity protections.

• Not counting CO2 emitted during construction, ST2 would reduce regional CO2 emissions by up to only 1.11 percent. The
same reduction could be achieved through purchasing carbon offsets for only $2.3 million.

Read or download the 2008 Citizens' Guide to Sound Transit, Phase 2 (pdf)


Michael Ennis is director of the Center for Transportation at Washington Policy Center, a non-partisan independent policy research organization in Seattle and Olympia. Nothing here should be construed as an attempt to aid or hinder the passage of any legislation before any legislative body.