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| Re: May 11, 1975. . .End of the Culver shuttle (428472) | |||
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Re: May 11, 1975. . .End of the Culver shuttle |
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Posted by J trainloco on Fri May 11 23:02:31 2007, in response to Re: May 11, 1975. . .End of the Culver shuttle, posted by Stephen Bauman on Fri May 11 22:52:27 2007. David refers to "coming into a terminal", "going back" etc. I take that to mean a terminal and not an intermediate station.David Wrote: "In some cases, an extra track might have benefits. For instance, if dwell times at a particular station are very high, a second track would permit two trains to be in the station at once. But isolated situations like that don't need an extra track along the entire line." A terminal station doesn't need a 3rd track to allow 2 trains in it. He also refers to an extra track along an entire line, meaning we're going beyond the terminal. An extra track at intermediate stations can be used to increase capacity beyond the theoretical 40 tph limit. However, NYCT currently operates far below that limit. The reason that NYCT operates below that limit is because of the same issues that a 3rd track within a station would resolve. |
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