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| Re: ZPTO Subway Relays (1159024) | |||
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Re: ZPTO Subway Relays |
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Posted by WillD on Mon May 28 23:31:36 2012, in response to Re: ZPTO Subway Relays, posted by Kevin from Midwood on Mon May 28 14:29:15 2012. That seems quite likely. I'd imagine the button she's pressing on the wall is little more than the 'Start' and 'Stop' buttons that would be found in the cab. At most there may be a deadman handle there to make sure she stays and observes the train as it exits the platform. I don't know exactly, but I'd think what control she has over the train is through the signal system rather than some remote control. If she should choose to command a stop then presumably the circuit the train is in will automatically go to emergency and the train would apply emergency brakes.I'd never considered it before, but the same sort of control panels at the end of a platform could be an excellent way for a ZPTO system to deal with unusual crowding conditions brought on by events. As I understand it, Nuremburg's very expensive RUBIN intrusion detection system for their automated U3 line was brought on by the local football club and their regular jamming of one of the stations before and after games. A much cheaper alternative for relatively rare events which place passengers in danger due to crowding would be to give an employee standing on the platform the ability to bring the incoming train to a stop should conditions warrant it. Or has anyone ridden something like Vancouver's Skytrain and observed something like this already in use? |
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