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| Re: W train returning when Phase I of the 2nd Av subway opens in December 2016?. (1386908) | |||
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Re: W train returning when Phase I of the 2nd Av subway opens in December 2016?. |
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Posted by Stephen Bauman on Thu Feb 25 19:33:13 2016, in response to Re: W train returning when Phase I of the 2nd Av subway opens in December 2016?., posted by randyo on Thu Feb 25 19:24:07 2016. Well it wouldn’t be able to enter the station until signal 2 is yellow so it would have to wait at signal 1. That takes time.The time interval from when signal 2 turns yellow to when signal 1 turns green is due to the signal system's reaction time. How much time do you believe this takes? (It's very easy to measure on an elevated station.) This is the only signal system related parameter in calculating minimum headway. |
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