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| Re: WMATA Trains to Operate Slow Due to Slippery Track Conditions During Friday's AM Rush (525493) | |||
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Re: WMATA Trains to Operate Slow Due to Slippery Track Conditions During Friday's AM Rush |
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Posted by Fine, Howard, and Fine on Fri Nov 30 11:40:18 2007, in response to WMATA Trains to Operate Slow Due to Slippery Track Conditions During Friday's AM Rush, posted by WMATAGMOAGH on Thu Nov 29 22:57:35 2007. I witnessed one overrun on Turkey day: a 4 car train slid through an entire platform (600 feet) and then a few hundred feet further with its brakes locked up. I'm sure the wheels weren't very round anymore (relate to the NTSB comment I make below).Some might say that if stopping distances are being tripled or quadrupled in bad weather, you shouldn't be running at all. Ron complained about the trains in ATO not making stops; there's no way an ATO system can make up for such poor braking. Problem is far more fundamental: the rail-wheel interface on wet leaves just sucks rocks. Contrast with the NTSB thing from a month ago, where the wheel-rail interface was too adhesive and the train derailed underneath the convention center as a wheel just drove up and over the rail of a switch laying reverse. |
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