|
|
| Re: CBTC + Short Turn Terminals = Affordable 40tph. (1228673) | |||
 |
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
|
Re: CBTC + Short Turn Terminals = Affordable 40tph. |
|
|
Posted by Sand Box John on Thu Jun 13 23:34:18 2013, in response to Re: CBTC + Short Turn Terminals = Affordable 40tph., posted by randyo on Thu Jun 13 13:47:34 2013. Just because trains are "scheduled" a certain way on paper (or on a computer) doesn't mean that it will show up that way in the real world. Variable such as passenger interference and other conditions impact on the on time performance of the transit system.It depends on how the subsystem within the Automatic Train Control system works. In WMATA's ATC system there is a subsystem called Automatic Train Supervision, this subsystem adjusts train speed to compensate for delays. That is why there are 3 speed readout on the operators console of a metrorail car. left readout civil speed limit, middle readout regulated speed limit, and right readout actual speed. The regulated speed limit is adjusted to maintain the even spacing of trains at junction and along the line. Mind you this only works when things don't get to jacked up. John in the sand box of Maryland's eastern shore. |
|
|
|