HackerTube / Video
CBTC: Communications-Based Train Control
mtainfo
An MTA video on communications-based train control, the system meant to replace the New York City subway's century-old signaling. It also shows the mechanical interlocks and signals in use today.
Cited as a view into how outdated and error-prone NYC subway signaling is, and how antique interlocking systems work.
6 Hacker News mentions · 2015–2022