Parts of the A train still run on signals from the 1930s, and the MTA just started ripping them out. 🚇🚦 The MTA calls it the largest signal and track replacement project in its history: about $1.9 billion, 42 track miles and 23 stations on the Fulton and Liberty lines, from High St in Brooklyn to Ozone Park–Lefferts Blvd in Queens. The old fixed-block signals are being replaced with Communications-Based Train Control (CBTC), which tracks where trains are and how fast they're moving much more precisely, so trains can safely run faster and closer together. The MTA says on-time performance on the 7 rose from 68% to 91% after CBTC. The first closure is scheduled for Nov. 7–16, 2026: no A trains between Rockaway Blvd and Ozone Park–Lefferts Blvd, with free shuttle buses instead. More weekend and overnight work is planned through 2027, and the MTA expects to finish in the second quarter of 2032. Check mta.info for current service. Sources: MTA press releases (Oct. 22 & Oct. 26, 2026) and MTA A line service notice (Nov. 2026). Footage: Pexels (Karma Rayshar, Luke Miller, Rafael Fernanz, Caleb Oquendo, Stoic Tea Time Yelverton, bizarreaudio, Mario Spencer, Hugo Poullain, Daniela Sánchez). Wikimedia Commons: Antigng (CC BY-SA 4.0); GK tramrunner RU (CC BY-SA 4.0); "MTA T Train" fan channel (CC BY 3.0); Zeodekken (CC BY 3.0); Doorknob747 (CC0); Billy Bitzer, 1905 (public domain). Photos: Marc A. Hermann / MTA (CC BY 4.0); MTA service map (CC BY 4.0); MTA via Wikimedia Commons (CC BY 2.0). Original music. No MTA endorsement implied. #nyc #atrain #nycsubway #mta #subway - @newyorkbanger