12-01-2020, 11:13 AM
(11-29-2020, 09:45 PM)ijmorlan Wrote: Even with the current malengineered situation, the train can be operated; it just needs written track authority. So presumably there is a way of disengaging the brakes even while the door is still reporting that it is open (I don’t think typical train motive power is capable of moving the train against a fully-applied brake, even if the control system would allow an attempt). Again, a door problem is not a legitimate reason to require going back to 1800s technology. In fact, I can’t think of much that would; besides the obvious failure of part of the ATC itself, something like total brake failure maybe; except that then the vehicle would have to be towed or pushed, and in that case it would be nice if ATC could still be able to operate the helper vehicle.
There's certainly a way to disable the door interlock to move or tow a vehicle back to the yard for repairs, but it would never be engaged with passengers on board for obvious reasons.
You'd never be able or want to tow or operated a train or any other vehicle with its brakes engaged. Brakes are designed purposefully to be much more powerful. But there will also be some mechanism or master switch to manually disengage the emergency or parking brake.