In this post, I’ll provide more details on the BRISK (Bellevue, Redmond, Issaquah, Seattle, Kirkland) network, which is one component of a ST3 package that I hope Sound Transit will consider over the next few months. Sound Transit has studied each of these individual corridors, but there are areas where STB readers would probably like additional details as well as areas where enhancements to Sound Transit’s concepts are desirable. The goal of BRISK would be a full-featured BRT system meeting these standards:
- Right-of-way: Buses would generally operate in right-of-way which has been prioritized over general purpose traffic. This could be done using busways (at-grade or elevated, similar to the LA Metro Orange Line), HOV3+/HOT lanes, or median bus only lanes. Avoiding lower quality solutions like HOV2+, curb bus only lanes, or BAT lanes would be desirable.
- Service Frequency: Buses would come frequently, all-day long. High frequency service is key to reducing total travel times, particularly for trips that include a transfer to/from Link.
- Stations: Stations would be fully equipped with off-board fare collection and level boarding much like Swift. Station spacing will vary by corridor and segment with regional travel in mind.
- Vehicles: Lines would use articulated buses with 3 full-width doors, passive restraint systems, easy to circulate interiors and in-bus bike storage. Again this is much like Swift.
- “Open” System: In addition to the core BRT routes, parts of the system could be be used by local Metro or ST Express buses to maximize the usefulness of the capital investments.
Community Transit’s Swift and LA Metro’s Orange Line are good examples of BRT lines which meet some of these standards. The Orange Line is a particularly good example for ERC segments since it too was a former railroad corridor and has a multiuse trail along it. The descriptions below build off of Sound Transit’s existing studies, adding features and modifying routing.
Totem Lake – Kirkland – UW (Purple)
- Sound Transit’s B1a route from the University District-Kirkland-Redmond Corridor Report is very similar to this route. On average 8,100 daily transit riders used buses in this corridor during 2014.
- This line would likely replace the current 255/540 and would mostly travel along the Eastside Rail Corridor (ERC) from Totem Lake to the South Kirkland P&R. From the ERC, buses would access the SR 520 HOV 3+ lanes. After crossing SR 520, buses would access UW Station via a new Montlake crossing and an off-street bus-rail transfer station.
- Like existing successful services on this corridor, this route serves the more transit-oriented neighborhoods in the city, but delivers better travel times between those neighborhoods than the often-congested 108th Ave NE corridor and surface streets between downtown and Totem Lake.
- Downtown Kirkland would be served with a deviation from the ERC because the ERC skirts the edge of the downtown. There are a variety of ways this could be achieved and Sound Transit should study the options, with the goal of minimizing mix-traffic operations and balancing coverage while also minimizing out of direction travel. Routing options through downtown include 6th Street/Central Way or via the Transit Center on 3rd St.
- The routing in Totem Lake would exit the ERC near 124th NE crossing that street on an elevated alignment. It would then continue via bus lanes to the transit center and onward to the freeway stop at NE 132nd. This would be a useful connection point to I-405 BRT. The line would reach within easy walking distance of much of the urban center, promoting transit oriented redevelopment in the area.
- A trail along the corridor would be protected and improved. Capital investments in bus-way facilities should be leveraged to improve the pedestrian/bike experience. For instance, an elevated crossing at NE 124th St could also serve trail users, reducing or eliminating many of today’s conflicts with cross-traffic.