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| Re: NYC Subway trains per hour (49929) | |||
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Re: NYC Subway trains per hour |
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Posted by stephenk on Sat Feb 12 12:22:24 2005, in response to Re: NYC Subway trains per hour, posted by Stephen Bauman on Sat Feb 12 08:42:26 2005. Quote: In 1914, the Third Ave El was reported to have intervals of 45 seconds. It had two termini: City Hall and South Ferry. Both were twin track termini with bumper blocks. BTW, it shared the South Ferry terminal with the Second Ave El which was reported to have intervals of 2 minutes. That's a total of 110 tph to be shared by two termini. At least one of them had to beat 36 tph.But how long were the trains on the third Ave El? The longer the train, the less the number of trains per hour that can be run. I know of quite a few light rail systems, and even one metro system with very short trains (Budapest) that can run 45tph through a scissors crossover. However, turning much over 30tph through a scissors crossover with typical heavy rail metro trains of 100-200m in length is quite a feat! Were there any special operations in place at Times Square when the Flushing Line ran 36tph to keep things on the move, such as closing doors prior to departure? Also, were there any speed control signals limiting speeds approaching the bumper blocks that seem to plague the capacity of dead-end termini ever since the Moorgate crash in London? (Although this was obviously before the Moorgate crash). |
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