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| Re: The Return Of ''Rapid'' Transit ? (1499956) | |||
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Re: The Return Of ''Rapid'' Transit ? |
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Posted by Jackson Park B Train on Mon Jan 14 13:38:51 2019, in response to Re: The Return Of ''Rapid'' Transit ?, posted by Michael549 on Mon Jan 14 12:41:03 2019. And if ANY of the CBTC hardware were as robustly built as the "obsolete" equipment, you might convince me. I have read comments by people I trust that recently rewired parts of the signalsystem are less reliable that the ancient stuff. Show me a "digital camera" with the integrity of the top end film cameras of 50 years ago. (let alone my grandfather's 1936 Leica which still works) Of course, the argument is that the modern hardware need not last very long because the technology will have made it obsolete before it fails. Soyou pay the high labor cost and rider inconvenience of having to build the system over again.And, as a reminder, CTA was able to operate at less than 2 minute headways with the "obsolete" "analog" signalling system as built in the 40s into the 70s. No part of the BART with its "space age" computer driven ATC/ATO has eversustained such tight headways. They hope to move from 20 TPH to 24 TPH with their fouth generation of computers. |
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