But if you were to connect it at Canal/Chambers wouldn't you need to do tunneling across lower manhattan which no one wants? Connect it at Bowery, it's easier. Put some use to the abandoned platform there and at Chambers St also. If an extension along 4th Av somewhere were to be thought of, have the run like the the . Local, with a connection to the at 9th Street and to Kings Highway where it can turn.
@ThrexxBus and Grand Concourse
Problem?