BART Upgrades Train Control on SFO Line
BART's SFO line faces 30-minute delays Sunday-Thursday nights for train control upgrades
BART Delays Hit SFO Line for Upgrade Work
Riders traveling between Millbrae, San Francisco International Airport, and San Bruno stations should expect 30-minute delays during late-night hours, transit officials said. The delays affect service starting at 9 p.m. on Sunday through Thursday nights due to planned train control modernization construction work. Officials didn't specify how long the construction period will last or when normal service times will resume.
Modernization Project Background
The construction work is part of BART's ongoing train control modernization efforts, according to the transit agency. Train control systems manage train movements, speeds, and spacing to ensure safe operations across the network. Officials said the work requires access to tracks and signals during lower-ridership periods to minimize disruptions. Transit agencies typically schedule major infrastructure upgrades during off-peak hours, though specific details about the scope of BART's modernization project weren't available by publication time.
Service Impact Details
The 30-minute delays will affect all trains operating between the three stations during the specified hours, transit officials said. The work targets the section of track serving the airport and Millbrae, a key connection point for air travelers and Peninsula commuters. Officials haven't said whether the delays will affect only southbound trains, northbound trains, or both directions. The agency also didn't provide information about whether alternative transportation options or shuttle services will be available during the construction period.
Construction Timeline
The delays begin at 9 p.m. each night from Sunday through Thursday, officials confirmed. The agency didn't announce when the construction work started or how many weeks the project will continue. Transit officials also haven't said whether the work will extend to Friday or Saturday nights in the future. Riders should plan for extended travel times during affected hours until the agency announces completion of the modernization work.
Rider Information and Updates
Airport travelers and commuters using the affected stations should add at least 30 minutes to their expected travel times during construction hours. Officials said riders should plan accordingly, particularly those catching flights or making time-sensitive connections. Moovit provides real-time BART updates and alternative route planning to help riders navigate the delays during the modernization project.
