The route 48 is set to get some upgrades. But this workhorse route that connects neighborhoods outside downtown needs more dedicated space. (Photo by the author)

Of the seven frequent bus corridors that the 2015 Move Seattle levy pledged to upgrade, Route 48 between the University District and Mount Baker was always planned to be the least ambitious upgrade. The nine-year levy was never actually set to provide any direct funding dollars for the project at all, instead it was assumed that any upgrades to the route could be funded via outside grants. It was also set to be the last bus corridor of the seven to be upgraded. Now, after delays and budget gaps have plagued the rest of the corridor projects, the Seattle Department of Transportation (SDOT) is proposing its initial concepts for the route improvements. And those improvements largely don’t include providing a dedicated lane for buses along this key north-south corridor.

The budget and scope is still very modest. The single biggest component of the project proposed at this point entails adding Transit Signal Priority (TSP) upgrades to fifteen intersections between Montlake and Mount Baker that will allow approaching buses to communicate with traffic signals and trigger a green light faster than it might appear if the bus wasn’t there.

Map of the area around the Route 48 with no street types designated. Intersections are highlighted showing where TSP would be added
SDOT is proposing to upgrade signals at 15 intersections along the Route 48 corridor to add Transit Signal Priority. (SDOT)

SDOT is also proposing some very short dedicated space for buses. Southbound Route 48 coaches would have a bus-only lane south of S Massachusetts Street, and an adjusted traffic signal that would give the bus a head’s start as that bus lane disappears is being considered. Another transit lane is also proposed at the approach to Rainier Avenue, where the left-turning 48 would have its own turn lane.

An illustration of the two stretches of bus lanes near Rainier Ave on a map
The only new dedicated space for buses on the Route 48 corridor is a one-block southbound bus lane and a dedicated left turn lane for buses between Massachusetts Street and Rainier Avenue. (SDOT)

These improvements are not incredibly substantial for a route that was rated relatively high on King County Metro’s list of routes needing investments to improve reliability in 2019. That year Metro found that 20.7% of trips on weekday evenings and 21.4% of trips on Saturdays were running late. Poor Saturday performance in particular isn’t surprising for a route that serves Husky Stadium.

Last year, the University of Washington updated the transportation management plan for the football stadium, adjusting a transit mode share goal of 29% that had been in place since 1986 up to 52% on weekend game days. Buses that serve the stadium need to be able to get through stadium traffic. There are transit lanes on NE Pacific Street and Montlake Boulevard near the stadium, but the nine-lane version of Montlake Boulevard that WSDOT is currently constructing over SR 520 only includes a short segment of northbound bus lane, with no southbound counterpart.

More dedicated transit lanes deserve a real revisit now

In 2017, when SDOT was working on a street redesign for the corridor as part of its Vision Zero program, the department looked at converting one southbound lane of 24th and 23rd Avenue between Boyer Avenue E and E John Street to bus-only. That bus lane was eliminated from the project, a decision that at the time was attributed to “community feedback,” after hearing from only around one hundred people in their outreach process. There wasn’t any other justification for the lane to be eliminated, a fact that was noted at the time by both the Seattle Transit Blog and the Seattle Bike Blog.

A street cross section with a southbound bus lane in addition to drive lanes in both directions and a turn lane
A discarded proposal from 2018 included a southbound bus lane on 24th/23rd Avenue between Boyer Ave and John Street. This is the time to revisit this idea. (SDOT)

In addition, SDOT kept the configuration of 24th Avenue E north of Boyer Avenue at two traffic lanes in each direction, holding off on reconfiguring that segment of the street to improve either safety or bus reliability. At the time, this was framed as a decision that would be revisited. “As we get closer to upgrading bus service to RapidRide on 23rd Avenue E (currently scheduled to start operating in 2024), we’d like to revisit the neighborhood to discuss going from four to three lanes,” a presentation from October of 2017 noted. A RapidRide line is no longer slated for implementation in the corridor anytime soon, further increasing the need to revisit adding space for buses, particularly in the often traffic-choked areas around SR 520.

The budget for the Route 48 pales in comparison to some of the larger corridor upgrades moving forward, as on Madison Street or Eastlake Avenue. But that doesn’t mean we should settle for a block-and-a-half bus lane on a corridor where all the evidence points to the need to do more. The proposed modal integration policy that SDOT is moving forward would prioritize creating dedicated space for buses in instances just like the Route 48. We can’t afford to let this opportunity pass by again.

The Urbanist, as part of the Move All Seattle Sustainably Coalition, has been pushing for a rapid rollout of bus only lanes in the city since 2018. This has included the most congested parts of Route 48’s path through Montlake from the start. After years of delay, it’s time to get this done.

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Senior Editor

Ryan Packer lives in the Summit Slope neighborhood of Capitol Hill and has been writing for the The Urbanist since 2015. They report on multimodal transportation issues, #VisionZero, preservation, and local politics. They believe in using Seattle's history to help attain the vibrant, diverse city that we all wish to inhabit. Ryan's writing has appeared in Capitol Hill Seattle Blog, Bike Portland, and Seattle Bike Blog, where they also did a four-month stint as temporary editor.