>>1878780honestly, it would make a lot of sense in NYC for two reasons:
1. manhattan is an island (picrel)
2. even though there is a single ROW, the old transit map is a hub/spoke with manhattan as its hub. but as brooklyn and queens and the bronx have become less shitty (relative i know) there's a need for north/south transport between them and it's really difficult and expensive to build a new highway/tunnel, plus traffic is fucking insane
picrel