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| Re: How Railroad Could Have Avoided / Ameliorated Fiery Crash (1338414) | |||
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Re: How Railroad Could Have Avoided / Ameliorated Fiery Crash |
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Posted by steamdriven on Fri Feb 6 20:46:28 2015, in response to Re: How Railroad Could Have Avoided / Ameliorated Fiery Crash, posted by WillD on Fri Feb 6 18:07:38 2015. It's simpler than that.Install a ski-jump ramp with a brass cover (slides better) at the critical locations, offset to the outside just a few inches and perhaps forwards to it doesn't catch the pickup shoe. That will be enough to raise cars and drop them on top of the 3rd rail rather than spearing it; if just an edge of the car catches the 3rd rail it does not lead to this type of event (the car bit tears off). Engineers who deal with barriers may come up with something more clever. But this particular accident sequence appears to be so rare that it might not be worth the trouble. I'm in favor of mitigating risks, but if such an event is not likely to happen again for the lifetime of the technology (let's say 50 years), it's just pandering to the emotion of "do something!!!" I suggest MTA keep the MNR under-running 3rd rail, and if the bureaucrats that be don't eliminate ground level 3rd rail (which is unlikely), convert the LIRR to MNR style under-running. It is more reliable and slightly safer, as the top and sides could be (sorta) insulated. |
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