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| Re: Canarsie CBTC (97176) | |||
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Re: Canarsie CBTC |
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Posted by H.S.Relay on Fri Jun 10 17:21:00 2005, in response to Re: Canarsie CBTC, posted by Stephen Bauman on Fri Jun 10 07:18:45 2005. However, current systems using track circuits and vital relays also crap out during rush hour with equally disaterous results.True enough. And one track circuit or one red signal can create a conga line real fast, but it is a failure at one location. A NB CBTC train failing at DeKalb Ave will be forced to operate at 10mph until it sees a green Approach signal at Bedford Ave interlocking - 7 stations. In rush hour this is going to cause a much more widespread delay that a conventional signal failure in a single location. ATS-CBTC will spread the stranded followers out one-per-platform, but that's the only advantage. Today the ATD would stretch the departures out of 14/8 using common sense and experience, and without spending a bZillion dollars. -But we're not talking about ATS. |
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