No -- the next thing that needs doing in right next to the Tunnel Ramp - Dig under D St. and thenThis deserves so much attention.
Transit people have been shouting about the SL ramp for years, and the powers-that-be always insisted it was a non-starter. Then the transit people finally put enough pressure on the powers-that-be for them to actually look at the damn thing, at which point it became obvious that, well, gee, the transit people were right!
Moral of the story: listen to the transit people!
Now do the Red-Blue cut-and-cover. And the gradual electrification of the "Commuter Rail" network, starting with the Providence and Fairmount lines..
Build the next -- Super Station -- Underground Silver Line Way Station connecting with the tunnel under D Street -- this is a small amount of digging which can easily be packaged into Air Rights development of the existing Silver Line Way surface station and accompanying parking lot [Massport]
Some bureaucratic mumbo-jumbo is needed to merge properties from the two parts of the Commonwealth ostensibly in the transportation business [Massport and the MBTA] both technically report through the same chain to the governor
The benefits are immense for the relatively small effort:
- SL0 -- All Electric Vehicles -- essentially Trackless Trolleys -- can run entirely free of surface interference from South Station to Silver Line Way [and return to South Station] -- so if your destination is Court House, World Trade [aka Fidelity] or Silver Line Way -- there are no delays
- SL1 -- Airport Service expedited via the Tunnel
- SL2 -- Cruise / Reebok
- SL3-- Chelsea / Casino
- Underground Regular Bus Terminal -- Connections to all existing and future routes in the Seaport and surroundings