A FIND would only be useful if trains get rerouted, and I wouldn't expect a train in passenger service on the to be diverted onto Broadway/Astoria. If a station is closed, the dot for it is simply disabled...
Because it would either require replacing all the motors in every unit, or would create maintenance hell in Corona Yard, with 2 sets of spare parts, one for MITRAC, other for the other system. It wouldn't be worth it.
It makes a station look much more pleasant, instead of fluorescent tubes everywhere combined with dark colours and columns everywhere. It's what makes a lot of stations look unpleasant.
The 63rd Street line probably is one of the best examples of good transit planning too. It cost about 1.5 billion dollars, and that's fairly cheap for a tunnel that does this much.
The Cranberry Street tunnel wouldn't like a combination of the , and , splitting the isn't possible ever since Court Street became a museum, and there isn't any good turnback point for trains in Brooklyn.
Hard one. via 7th Avenue would obviously overload it, so;
additional service, some trains run express on WPR
suspended between 86 St and Borough Hall, with some trains from the north terminating at 125 St
running between Dyre and E180
suspended between Grand Central and Brooklyn Bridge
additional service
suspended between Grand Central and Utica Av/New Lots Av via 7th Avenue
susended between Grand Central and Brooklyn Bridge
running local in Brooklyn
running between 205 and West 4th St
running between 168 and WTC
via Broadway Express to 57th St
via the Cranberry Street Tunnel
running to Broad Street
If south of 3 Av-138 on the means that trains can be reversed just after 3 Av-138, then suspended between 86 St and 3 Av-138. Otherwise suspended between 86 St and Hunts Point Avenue. In the latter case, a shuttle is running between Hunts Point Avenue and 3 Av-138.
suspended between 149-Grand Concourse and 86 St, via 7 Av.
Logically speaking, people don't go from 148 St all the way to New Lots. also, having it as a shuttle between 148 and 135 causes conflicting movements at 135.
Because it would have too much of an environmental impact, it's not as cheap as in other countries, because in London, even a smaller diameter tunnel (the Jubilee line, for instance), cost 3.5 billion pounds, so basically, unless you want to kill off all health & safety laws, destroy the unions etc etc etc it can't be done cheaper.
runs between 205 St and 59th St, via tunnel, via tunnel, runs local on 4th Avenue, suspended between 9th Avenue and 205 St, suspended, suspended between 57 St and Delancey St, runs to Broad Street, suspended between Canal Street, replaced by the regular shuttle.
suspended between Rockaway Blvd and Lefferts Boulevard, gets tph reduction, to Jamaica Center, runs normal service, terminates at South Ferry, suspended between Bowling Green and Utica Av, gets tph increase, and an between Utica Av and New Lots Avenue.
runs from Flatbush to 148 St, suspended between Utica Avenue and Grand Central, running between Flatbush and Bowling Green, suspended between 86 St and Brooklyn Bridge. suspended between Essex St and Broad Street.
Shut down the entire system (except maybe the Grand Central shuttle which wouldn't have any raison d'être at that point, would only inconvenience) and replace it with buses until the switches have been fixed; capacity of the subway would be too low.
Now for something more sensible; the 60th St Tunnel and the 53rd St Tunnel both go down. Reroute the