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| Re: Real Long Read On NYCPropulsion/Braking (333616) | |||
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Re: Real Long Read On NYCPropulsion/Braking |
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Posted by randyo on Sat Nov 4 03:17:55 2006, in response to Re: Real Long Read On NYCPropulsion/Braking, posted by RonInBayside on Sat Nov 4 01:25:16 2006. Besides all of the above, when i did a running time check over the Willy B even though I had been a M/M over that bridge before, I paiid closer attention to the signal spacing on the bridge. What I noticed was that the signals on the bridge before replacement were only about 250 ft apart which may have been adequate for the BU elevated cars which originally operated over the bridge in 5 car train lengths but were totally inadequate for later equipment which consisted of 8 car steelsand later 8 car R types. Neither the BMT nor its successors the B of T and the TA, however, seemed to feel it necessary to alter the signal spacing on the bridge to provide the necessary stopping distance behind the longer trains that were now being operated. As a result, a collision such as the one described would have been inevitable and I'm surprised one did not take place sooner. The problem on the Willy B was not necessarily a problem of inadequate braking capability of the rolling stock, although that entered into it, but rather the retention of 1900s signal technology on a 1990s system. |
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