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MTA needs a dead-man's switch
Posted: Thu Dec 10, 2015 5:40 pm
by ghostjmf
Which apparently it doesn't have. The passengers who broke into the abandoned conductor's car couldn't find the brake, anyway. Watch your nightly news for runaway train footage.
(Conductor had requested & gotten permission to leave train to investigate signal problem. Apparently they didn't have the train in park, though.)
It was one of the 1st trains of the day (T starts running at 5:30am).
Re: MTA needs a dead-man's switch
Posted: Fri Dec 11, 2015 9:19 am
by gsabc
MBTA vehicles
do have those. It can be compromised fairly easily, according to one expert.
http://www.wcvb.com/news/expert-describ ... +-+News%29
(Turn down your sound if you're reading the story at work. The video accompanying the story automatically starts up.)
IMO this guy is out of a job unless they find a mechanical issue.
Re: MTA needs a dead-man's switch
Posted: Fri Dec 11, 2015 10:47 am
by ghostjmf
What I haven't seen/heard/read yet (can't call up your ref where I currently am) is why the people who broke into conductor's car didn't find the darn brake.
Its since been told that T officials, aware they had a runaway, eventually stopped train by killing power to tracks. A brake would have been quicker, but there is no remote-control brake on T cars.
What I really didn't like was Gov Baker (for whom I did not vote) repeatedly saying "the train had been sabotaged" when it was obvious to everyone else that the train was under emergency adjustments made by conductor checking on problem outside train; they just didn't do the "brake on" part of those adjustments correctly.
Re: MTA needs a dead-man's switch
Posted: Sat Dec 12, 2015 11:52 am
by ghostjmf
Cineston controller combines accelerator, decelerator & "dead man" brake. Bad, bad conductor had rigged it in "accelerate" position.
Passengers who broke into cab to stop train couldn't decifer combo Cineston switch, & prolly neither could I have w/o a diagram. Whatever happened to clearly labelled controls?
Glad my car does not have Cineston controller.
Can't quote great article on this tablet.
There *is* a 2nd brake, which conductor had not set.
Re: MTA needs a dead-man's switch
Posted: Sat Dec 12, 2015 2:49 pm
by SpacemanSpiff
Maybe that explains those cars that suddenly accellerate when the driver says he hit the brakes?
Re: MTA needs a dead-man's switch
Posted: Sun Dec 13, 2015 2:35 pm
by ghostjmf
I don't believe they've ever put Cineston controllers in private autos. Or even subway/trolley cars after the batch currently running on the Red Line.
Sigh; I remember when those Red Line cars were brandy-new.
Now that I'm at a real computer I can't find that great ref to quote describing that diabolical all-in-one switch.