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SFMTA outlines subway slow‑zone repairs, Potrero Yard closure and Clean Corridor pilot on 14 Mission
Summary
Transit Director Brent Jones detailed slow‑zone restrictions in the Market Street subway and a planned Embarcadero crossover repair timeline, described a Potrero Yard closure with service reassignments beginning Feb. 14 sign‑up for winter service, and highlighted a Clean Corridor pilot on the 14 Mission with mobile cleaning crews and ambassadors.
Transit Director Brent Jones presented the quarterly transit update, focusing on infrastructure constraints in the Market Street subway, fleet and yard plans, and customer‑facing pilots.
Jones said the subway has multiple active speed restrictions that add time to trips — staff estimate up to a 24‑second inbound delay toward downtown and up to an 80‑second outbound delay toward western neighborhoods. He identified the Embarcadero double crossover as a critical component with aging frogs, switch points and stock rails; procurement for the repair was anticipated in March 2026 with fabricated materials arriving around February 2027. Jones described three restriction categories (planned,…
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