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Stride (bus rapid transit)
Stride is a future bus rapid transit (BRT) service managed by Sound Transit in the Seattle metropolitan area of Washington in the United States. It is set to comprise three lines that cover 46 miles (74 km) and 25 stations on Interstate 405 (I-405) and State Route 522 (SR 522) in King and Snohomish counties. The system will primarily serve the Eastside region and is scheduled to open in 2028 and 2029.
The three BRT lines will replace existing Sound Transit Express regional bus routes that were launched by Sound Transit between 1999 and 2002. A network of direct access ramps for these routes were constructed on I-405 to connect the existing high-occupancy vehicle lanes (HOV lanes) to new bus stations and flyer stops. Plans to upgrade the express buses into a BRT system emerged as part of long-range planning for the I-405 corridor in the 1990s and was included in Sound Transit plans the following decade.
Funding for the I-405 BRT lines, along with the addition of the SR 522 corridor, was part of the Sound Transit 3 ballot measure that was passed by voters in 2016. Construction began in 2024. The S1 and S2 lines on I-405 will use median stations in the freeway, accessed from the high-occupancy toll lanes (HOT lanes); the S3 Line will have conventional bus lanes and business access and transit lanes. Stride will use battery electric buses on all three lines, served from a new maintenance facility in Bothell, and connect with Link light rail.
The Interstate 405 (I-405) and State Route 522 (SR 522) corridors are served by Sound Transit Express bus routes that were launched in the late 1990s and early 2000s by Sound Transit to provide service between regional hubs. They replaced earlier King County Metro (formerly Metro Transit) bus routes from as early as the 1970s to provide inter-suburban service and bypass Downtown Seattle, the hub of the regional transit network. The first of these was Route 240, an all-day suburban route which launched in 1973 and served a 40-mile (64 km) corridor from Burien to Bothell with intermediate stops at Seattle–Tacoma International Airport, Southcenter Mall, and Bellevue. An express variant, Route 340, connected several park-and-ride lots on I-405 and SR 518 between Burien and Shoreline; it was the longest route in the Metro system, taking three hours on a round trip.
The south half of I-405 is served by Route 560, which travels from the Westwood Village shopping center in West Seattle to Burien, Seattle–Tacoma International Airport, Renton, and Bellevue. It was launched by Sound Transit in September 2000 and originally continued north to West Seattle Junction until the route was cut in 2013. The north half of I-405, from Bellevue to Lynnwood, is served by Route 535; the route has stops in northern Kirkland and at the University of Washington Bothell campus. The corridor is also served by Route 532, which continues to Everett. Both routes were part of the original Sound Transit Express launch in September 1999; route 535 has all-day service on weekdays and Saturdays, while route 532 is peak-only.
The SR 522 corridor from Seattle to Kenmore, Bothell, and Woodinville is served by Sound Transit Express route 522, which launched in September 2002. It replaced an earlier route operated by King County Metro, who continue to run a direct route from Kenmore and Bothell to the University of Washington campus in Seattle. Route 522 originally continued into Downtown Seattle until it was truncated to coincide with the opening of Roosevelt station in 2021.
I-405 was originally built as a bypass around Seattle, but had become heavily congested during peak hours after the development of Eastside cities in the late 20th century. A set of high-occupancy vehicle lanes (HOV lanes) were constructed along its entire length from 1983 to 2002 to address congestion issues and encourage the use of carpools and public transit. The Regional Transit Authority (now Sound Transit) planned to construct direct-access ramps for the HOV lanes to improve bus service on the corridor, as the existing network of flyer stops required buses to weave in and out of the other lanes. The ramps were funded by the Sound Move ballot measure, which was approved by voters in 1996, and intended to be a precursor to a bus rapid transit (BRT) system.
The conversion of the HOV lanes on I-405 for transit-only use or the construction of an adjacent facility was proposed as early as 1990 by Metro Transit (now King County Metro). A commuter rail or light rail line using the existing Eastside Rail Corridor, a former freight line that runs parallel to I-405, was also considered in various plans. The state government convened a 19-member committee in 2001 to draft a long-range plan for the I-405 corridor that would be used to recommend projects in future legislative funding packages. Sound Transit, a stakeholder in the committee, solicited ideas for a bus rapid transit system with grade-separated busways. The state committee endorsed the addition of managed high-occupancy toll lanes (HOT lanes) lanes that would also be used by a bus rapid transit system with park-and-ride stops spaced 2 to 3 miles (3.2 to 4.8 km) apart.
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Stride (bus rapid transit)
Stride is a future bus rapid transit (BRT) service managed by Sound Transit in the Seattle metropolitan area of Washington in the United States. It is set to comprise three lines that cover 46 miles (74 km) and 25 stations on Interstate 405 (I-405) and State Route 522 (SR 522) in King and Snohomish counties. The system will primarily serve the Eastside region and is scheduled to open in 2028 and 2029.
The three BRT lines will replace existing Sound Transit Express regional bus routes that were launched by Sound Transit between 1999 and 2002. A network of direct access ramps for these routes were constructed on I-405 to connect the existing high-occupancy vehicle lanes (HOV lanes) to new bus stations and flyer stops. Plans to upgrade the express buses into a BRT system emerged as part of long-range planning for the I-405 corridor in the 1990s and was included in Sound Transit plans the following decade.
Funding for the I-405 BRT lines, along with the addition of the SR 522 corridor, was part of the Sound Transit 3 ballot measure that was passed by voters in 2016. Construction began in 2024. The S1 and S2 lines on I-405 will use median stations in the freeway, accessed from the high-occupancy toll lanes (HOT lanes); the S3 Line will have conventional bus lanes and business access and transit lanes. Stride will use battery electric buses on all three lines, served from a new maintenance facility in Bothell, and connect with Link light rail.
The Interstate 405 (I-405) and State Route 522 (SR 522) corridors are served by Sound Transit Express bus routes that were launched in the late 1990s and early 2000s by Sound Transit to provide service between regional hubs. They replaced earlier King County Metro (formerly Metro Transit) bus routes from as early as the 1970s to provide inter-suburban service and bypass Downtown Seattle, the hub of the regional transit network. The first of these was Route 240, an all-day suburban route which launched in 1973 and served a 40-mile (64 km) corridor from Burien to Bothell with intermediate stops at Seattle–Tacoma International Airport, Southcenter Mall, and Bellevue. An express variant, Route 340, connected several park-and-ride lots on I-405 and SR 518 between Burien and Shoreline; it was the longest route in the Metro system, taking three hours on a round trip.
The south half of I-405 is served by Route 560, which travels from the Westwood Village shopping center in West Seattle to Burien, Seattle–Tacoma International Airport, Renton, and Bellevue. It was launched by Sound Transit in September 2000 and originally continued north to West Seattle Junction until the route was cut in 2013. The north half of I-405, from Bellevue to Lynnwood, is served by Route 535; the route has stops in northern Kirkland and at the University of Washington Bothell campus. The corridor is also served by Route 532, which continues to Everett. Both routes were part of the original Sound Transit Express launch in September 1999; route 535 has all-day service on weekdays and Saturdays, while route 532 is peak-only.
The SR 522 corridor from Seattle to Kenmore, Bothell, and Woodinville is served by Sound Transit Express route 522, which launched in September 2002. It replaced an earlier route operated by King County Metro, who continue to run a direct route from Kenmore and Bothell to the University of Washington campus in Seattle. Route 522 originally continued into Downtown Seattle until it was truncated to coincide with the opening of Roosevelt station in 2021.
I-405 was originally built as a bypass around Seattle, but had become heavily congested during peak hours after the development of Eastside cities in the late 20th century. A set of high-occupancy vehicle lanes (HOV lanes) were constructed along its entire length from 1983 to 2002 to address congestion issues and encourage the use of carpools and public transit. The Regional Transit Authority (now Sound Transit) planned to construct direct-access ramps for the HOV lanes to improve bus service on the corridor, as the existing network of flyer stops required buses to weave in and out of the other lanes. The ramps were funded by the Sound Move ballot measure, which was approved by voters in 1996, and intended to be a precursor to a bus rapid transit (BRT) system.
The conversion of the HOV lanes on I-405 for transit-only use or the construction of an adjacent facility was proposed as early as 1990 by Metro Transit (now King County Metro). A commuter rail or light rail line using the existing Eastside Rail Corridor, a former freight line that runs parallel to I-405, was also considered in various plans. The state government convened a 19-member committee in 2001 to draft a long-range plan for the I-405 corridor that would be used to recommend projects in future legislative funding packages. Sound Transit, a stakeholder in the committee, solicited ideas for a bus rapid transit system with grade-separated busways. The state committee endorsed the addition of managed high-occupancy toll lanes (HOT lanes) lanes that would also be used by a bus rapid transit system with park-and-ride stops spaced 2 to 3 miles (3.2 to 4.8 km) apart.