Seattle's RapidRide H Line (2022)
Seattle spent about $100 million redesigning a 3.5-mile corridor on Delridge Way with center-running bus lanes, new stations, and signal priority, following years of community meetings where parking and business access were the most contested issues.
Bus travel times dropped by roughly 20% after opening, and ridership grew despite the pandemic.
The corridor became a model for city-run bus rapid transit outside dedicated BRT systems, showing that center bus lanes can work alongside retail streets.
Seattle's experience demonstrates the tradeoff Boston faces: center bus lanes deliver measurable speed gains, but only if the city resists pressure to let cars reclaim the space. Boston's smaller bike allocation mirrors similar compromises elsewhere.
