Service Implementation Plan

2018 Service Implementation Plan

Each year Sound Transit releases its annual Service Implementation Plan (SIP). This document analyzes route performance and makes recommendations on service and fleet investments over the next five years. Both the complete SIP and the Executive Summary are available below.

Highlights for 2018 include:

  • Sound Transit has ordered 30 additional light rail vehicles (LRVs) to our 2016 order for 122 new LRVs. These vehicles will begin arriving in 2019, and when fully in service will comprise a total fleet of 214 LRVs, more than triple today's capacity. Beginning in 2021, all Link trains will run with four cars.
  • With a full year of operation for the University of Washington, Capitol Hill, and Angle Lake stations, Link ridership continued its robust growth in 2017, growing to 76,000 weekday boardings. We expect Link ridership to grow another eight percent in 2018.
  • Two new Sounder roundtrips were added in September 2017, and as a result we expect Sounder ridership to grow by eight percent over 2016 levels.
  • 2018 construction on the future Judkins Park Station will close the I-90/Rainier Freeway Station for five years, requiring new service patterns for I-90 bus routes. These service changes are being developed now for release early next year.
  • Planning work will continue for a rail-only Downtown Seattle Transit Tunnel in 2019.

Each year we release the SIP to give riders and taxpayers a clear accounting of our prior performance and future plans. Your feedback is critical to guide these service investments. We are accepting public comment on the SIP from Oct. 18 - Dec. 21, when it will be taken up for approval by the Sound Transit Board. You may comment on the Draft SIP by phone at 1-888-889-6368, via email to fastride@soundtransit.org, or in person prior to the Dec. 21st board meeting.

Documents in PDF format require the free Adobe Reader to view.

Current materials

Draft 2018 Service Implementation Plan (Complete)
Draft 2018 Service Implementation Plan (Executive Summary)

Updated service standards

The 2014 service standards have been approved by the Sound Transit board. These guidelines will be used to plan new services and manage existing bus and train assets. In 2014, the proposed revisions focus on updates to the evaluation and adjustment of existing services.

Read about the changes:
 2014 Service Standards and Performance Measures

Materials from previous years

2017 Service Implementation Plan (Complete)

2017 Service Implementation Plan Executive Summary (Complete)

2016 Service Implementation Plan (Complete)

2016 Service Implementation Plan Executive Summary (Complete)

2015 Service Implementation Plan (Complete)

2014 Service Implementation Plan pdf (Complete)

2014 Service Implementation Plan Executive Summary (Complete)

2013 Service Implementation Plan pdf (Executive Summary)

2012 Service Implementation Plan pdf (Executive Summary)

2011 Service Implementation Plan pdf (Executive Summary)

2010 Service Implementation Plan pdf (Executive Summary)

2009 Service Implementation Plan pdf (Executive Summary)

2008 Service Implementation Plan pdf (Executive Summary)

2007 Service Implementation Plan pdf (Executive Summary)

2006 Service Implementation Plan pdf (Executive Summary)

2005 Service Implementation Plan pdf (Executive Summary)

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