CBTC goes live on New York’s 7-Flushing Subway line
https://www.metro-report.com/news/metro/single-view/view/cbtc-goes-live-on-new-yorks-7-flushing-subway-line.html
CBTC is a kind of the latest signalling system that allows trains to run more frequently.
CBTC is necessary for rail lines on which trains run at extreme frequency.
In New York Subway, it would be effective for lines which don't have quadruple tracks. The signalling system can play the most effective role when local trains and express trains are running on the same track.
