As long as the existing system is fully funded and properly maintained, there is no pressing need to replace anything. The original signal system worked fine fo

As long as the existing system is fully funded and properly maintained, there is no pressing need to replace anything. The original signal system worked fine for a century and could continue working fine for another century, as long as maintenance is being done I'm not saying you're definitively wrong, because I don't know from where you get your information, but that is simply not what I've heard from every other source. What I've read is that the signal system and the track structure is antiquated[0], equipment dating almost a century old, which is the cause of most delays and prevents safe running of trains at more frequent intervals, and that certain components of the track are so old that no one manufactures their replacements anymore, so the agency cannibalizes out of commission lines for parts. If you've got something to link that suggests otherwise, I'd be glad to read it and expand my horizons. I don't deny that increasing track coverage with new lines is very important too. [0] https://www.nytimes.com/2017/05/01/nyregion/new-york-subway-signals.html https://www.nytimes.com/2017/05/01/nyregion/new-york-subway-...