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| Re: SAS/four tracks (560662) | |||
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Re: SAS/four tracks |
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Posted by R160 8818 on Mon Jan 28 20:46:42 2008, in response to Re: SAS/four tracks, posted by Wallyhorse on Mon Jan 21 15:46:02 2008. The bi level express plan on the SAS may be costly, but I like this plan.The express/local service will begin at 14th Street. Between Houston and 14th, there will be track connections allowing trains to become local or express. The locals can enter Brooklyn via the Houston Street Tunnel to S. 4th Street and then use the Bushwick Avenue Tunnel or continue down Brooklyn via the Utica Avenue Line. Or it could tunnel under Avenue C, then under East Broadway and then Park Row. It could connect to the Nassau Street Line at Fulton Street. The express tracks could swing onto the Centre Street Subway just east of Bowery, continue on SAS Phase 4 or cross the Manny B to Brooklyn. But Plans 1 and 2 will seem more likely as there will be a SAS-Bridge service (namely the Q). The expresses can use a new level under the planned alignment. According to my proposal they should stop at Houston, 14th, 42nd, 55-57th, 72nd, 86th, 116th. It will head into the Bronx after 116th. As for the locals, they will stop at 14th, 23rd, 34th, 42nd, 50th, 60th, 72nd, 79th, 86th, 96th, 106th, 116th, 125/Lex. At 34th, the express tracks will move to the sides and rise to meet the locals at the same level just before 42nd. 42nd will have side platforms for the expresses and an island platform for the locals. The expresses will dive under the locals again to stop at 55th-57th. The proposed 55th Station of Phase 3 will be deleted to make way for the 50th and 60th Street Stations or become extended so that it could function as one long platform (similar to the long platforms on the Dearborn/State Street Subways in Chicago) allowing for better transfer facilities. The expresses will rise in the same fashion after 62nd Street so that it could meet the Broadway connection and locals at 72nd Street. After 72nd Street it dips below and will not rise again until before 116th Street. The explanation for the dipping and rising is so that there will be more flexibility on the line. If something happens on the local, the trains could switch to the express, or vice versa. It would be a costlier alternative than constructing a traditional 4 track subway but would be more feasible than to add tracks flanking the proposed tunnels. |
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