The NYC system isn't composed of "zones" like the systems in such cities as London and Paris. Essentially, once you pay your $2.75 you're free to travel to any subway station in the system. There's also a bus system with limited transfers.
back
3 comments
DC metro has zones, as an example of a US train system with it.
No zones effectively on the Métro. There are zones in Paris but that’s if you want to go suburban and then you don’t take the Métro. You take RER.
Toronto and London have zones. I'd bet the farm that Byford does the same when the MetroCard replacement is fully deployed.