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| Re: 9/23/16 Washington Metro smoke issues, again (1410459) | |||
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Re: 9/23/16 Washington Metro smoke issues, again |
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Posted by Sand Box John on Thu Sep 29 00:46:09 2016, in response to Re: 9/23/16 Washington Metro smoke issues, again, posted by randyo on Wed Sep 28 17:14:49 2016. There are some portions of the NYCTS that utilize all concrete roadbed although those rails sit on rubber pads between the rail and the concrete. I thought WMATA also used rubber pads.Both are the same. It's basically a neoprene sandwich, the plate the rail sits on and the loop the e-clip under is on the top. The the plate the studs that holds it to the cement pad is on the bottom. In some designs of the direct fixation track fastener there is a washer on the top and the stud goes through washer and the bottom plate. The one shown below is the latter design installed for WMATA in the 1970s. Some are still in use today. The design predated the invention of the Pandrol e-Clip.  In any case, it doesn’t address the issue of why WMATA doesn’t have any track or tunnel cleaning equipment. Like I said above, "WMATA has no equipment dedicated to the task of washing and or vacuuming the track bed and tunnels." They use to routinely hose down the tunnels, that was discontinued at the request of DC Water And Sewer because of issues in processing the discharge wash water pumped out of the tunnels into sewer system. WMATA doesn't have to deal with a lot litter because of the no food drink rules. John in the sand box of Maryland's eastern shore. |
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