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| Re: TA is obsessed with CBTC, and ''New'' tech for no reason. (578704) | |||
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Re: TA is obsessed with CBTC, and ''New'' tech for no reason. |
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Posted by trainsarefun on Sat Mar 1 00:20:53 2008, in response to Re: TA is obsessed with CBTC, and ''New'' tech for no reason., posted by Jeff H. on Sat Mar 1 00:08:11 2008. OK, that firms up a lot of things. Essentially, at least on the Canarsie Line, what's being gained by CBTC are the continuous safeguards afforded by PTC above and beyond those given by the traditional intermittent signal system, but since the lowest capacity item on a line limits capacity, even if the CBTC system could handle a service frequency of 30 tph, the fact that 8th Av - and Canarsie isn't a quicker terminal from what I've read here, though I haven't actually seen that it action - can only handle 24 tph renders what the CBTC system can do really quite moot in terms of service.Overall, CBTC is basically buying - on the Canarsie Line - the safety advantages of PTC - is that fair to say? |
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