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| Re: South Ferry Inner Loop Station. (1385643) | |||
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Re: South Ferry Inner Loop Station. |
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Posted by Stephen Bauman on Mon Feb 15 15:52:29 2016, in response to Re: South Ferry Inner Loop Station., posted by Jace on Mon Feb 15 14:14:54 2016. If instead you go the manual route by having the crew responsible then you'd probably need a panel for them to key in a code to tell the train to limit the number of doors to open (more hardware...) at a particular station.You use a touch screen interface. That eliminates almost all buttons and switches and most of the hardware with a substantial cost savings. Do you think this will be 100% effective? What are the risks if it isn't? C/R's are expected to figure out which side of the train to open. The potential risk is a lot greater than a single leaf at each end of the train. But even with one panel opening, you will take a hit on dwell time in peak periods as the ends of the train fill up at Lorimer and Bedford in particular. You currently have 56 feet of empty platform (536 - 480) divided among the platform ends. That's why passengers jam the first door. That empty space will be divided between 3 more doors. The crowding will be greatly reduced and there will not be a major half door loading problem. A better idea would have been designing a slightly shorter car to allow 9 car trains. The better idea was to use slightly longer 67 foot cars. The TA tried this with the R110B's. The problem is their engineers didn't copy the BMT's truck dimensions and offset placement. The result was the R110B could not take the curves on the L without hitting the wall. The problem with propulsion has to do with the timing between brake release and powering up the motors. If the two steps happen in series you get bucking, if you start to power the motors before the brakes are fully released, no bucking. Individual propulsion system artifacts should not be part of the messages. They should be accounted for by the hardware/software that interprets and implements the messages. |
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