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| (1345636) | |
EBV question |
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Posted by wallydog on Fri Mar 27 21:00:24 2015 Hello all,For a story I'm writing, I have a question about the emergency brake valve system, or EBV. Is there a situation in which a passenger could pull the emergency cord and cause the train to stop in the middle of a tunnel? I understand that couldn't happen on any of the newer trains, but would it be possible on one of the older ones? Also, would there be any reason the train would then have to be evacuated, e.g., to reset the EBV? My understanding is that in some of the older cars, like the R32s or R42s, the emergency cord was directly connected to the EBV system. Is this correct? This information is very difficult for a layman to find. My great thanks in advance to anyone who can help me. WD |
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| (1345653) | |
Re: EBV question |
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Posted by SelkirkTMO on Fri Mar 27 23:06:59 2015, in response to EBV question, posted by wallydog on Fri Mar 27 21:00:24 2015. Fast answers for you, I'll leave the details for others. The cord to pull the valve used to be out there in the open, hanging from a cord out of the cab. They were eventually covered over with a box to prevent "accidental" pulls but still retained on the older cars.If the cord was pulled, then the train would dump instantly wherever the cord was pulled. That's changed now so that if the cord can be pulled at all, it would be near the station, not in the middle of the tunnel. Resetting an EBV was no big deal, you'd have to figure out which car it was pulled in (you could tell by reading the air gauge in a cab how many cars back it was) and it was just a matter of walking back to the cab in question where the valve was pulled, and push the cork back in the hole to reset. Once the train charged back up, you were good to go again once you figured out WHY the train was dumped. No need to evacuate under any circumstances if it was an EBV pull only. Smoke or blood stains on the walls might be a reason to though. :) |
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| (1345667) | |
Re: EBV question |
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Posted by wallydog on Sat Mar 28 02:16:19 2015, in response to Re: EBV question, posted by SelkirkTMO on Fri Mar 27 23:06:59 2015. Thanks for the response, very helpful. If anyone has any further answers or details, those would be much appreciated too.For the story I'm writing, the train needs to be evacuated, so any details on why that might happen would be great. But thanks again, SelkirkTMO, for taking the time. WD |
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| (1345668) | |
Re: EBV question |
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Posted by SelkirkTMO on Sat Mar 28 02:28:34 2015, in response to Re: EBV question, posted by wallydog on Sat Mar 28 02:16:19 2015. No worries. For reality's sake though, the LAST thing anyone wants to do is evacuate to the roadbed. Only conditions that would require that would be rising water, fire, or some other serious emergency. And even in those cases, it would be more likely that either a rescue train (called "horses" back in my time there) would be dispatched to push a disabled train to a station, or to come up alongside the crippled train and have passengers evacuate to the adjacent train using improvised "catwalks" from the doors of one across to the other.There's too many potential risks for passengers on the roadbed. So there's your "real world" evacuation scenarios if that helps any. They'd rather push (or on railroads) PULL a train to a station stop if at all possible rather than emptying the train where it sits. So whip out that "artistic license" and flash it in the cop's face with my blessings. Heh. |
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| (1345669) | |
Re: EBV question |
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Posted by SelkirkTMO on Sat Mar 28 02:29:48 2015, in response to Re: EBV question, posted by wallydog on Sat Mar 28 02:16:19 2015. After posting that, just had a moment of screenwriter. About the only PLAUSIBLE scenario would be a long term, city-wide power failure with authorities not expecting the lights to come back on anytime soon. That'd work. :) |
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| (1345687) | |
Re: EBV question |
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Posted by SLRT on Sat Mar 28 09:24:53 2015, in response to Re: EBV question, posted by SelkirkTMO on Sat Mar 28 02:29:48 2015. One scenario is in the currently on cable movie "Metro," which takes place in Moscow. A tunnel break from running water is the scenario.I get the impression the writer is looking for something that could be caused by a passenger. |
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| (1345749) | |
Re: EBV question |
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Posted by SelkirkTMO on Sat Mar 28 17:29:39 2015, in response to Re: EBV question, posted by SLRT on Sat Mar 28 09:24:53 2015. Haven't seen that one, but you'd definitely want to bail out of there if that happened. And yeah, I got that sense as well. I'm curious to see what comes of the scenario. |
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| (1346003) | |
Re: EBV question |
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Posted by wallydog on Mon Mar 30 13:57:37 2015, in response to Re: EBV question, posted by SelkirkTMO on Sat Mar 28 17:29:39 2015. Thank selkirkTMO and SLRT for those answers. And yes, SLRT, you're right, I need the evacuation to be caused by a passenger.So I may have to use some artistic license. But it's a comedy so I think I can get away with it if I don't push it too far. But thanks again. Any further advice, answers, etc..., much appreciated. WD |
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| (1346058) | |
Re: EBV question |
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Posted by JayZeeBMT on Mon Mar 30 20:35:00 2015, in response to Re: EBV question, posted by wallydog on Mon Mar 30 13:57:37 2015. When Edward Leary set his bomb off aboard a (4) train 20 years ago, the resulting smoky mess precipitated an evacuation through the tunnel, IIRC.For a comedy, maybe an out-of-control mariachi band...LOL! |
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| (1346059) | |
Re: EBV question |
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Posted by Express Rider on Mon Mar 30 20:40:06 2015, in response to Re: EBV question, posted by JayZeeBMT on Mon Mar 30 20:35:00 2015. re: maybe an out-of-control mariachi band...LOLand they'd be covering "Summertime Blues" perhaps. |
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