|
|
| Re: R-160 Update (315110) | |||
 |
|||
| Home > SubChat | |||
|
[ Read Responses | Post a New Response | Return to the Index ] |
|
||
|
Re: R-160 Update |
|
|
Posted by J trainloco on Sun Sep 24 22:21:53 2006, in response to Re: R-160 Update, posted by Stephen Bauman on Sun Sep 24 22:16:36 2006. That's not really true. The blocks leading into stations are much shorter than between stations. There are also timers that limit the approaching train's speed, when it is close to the leaving train. This permits following trains to creep into stations at the same speed as one controlled by CBTC.If CBTC works as I understand ir, then there are 2 things CBTC improves upon when compared to current signaling: 1. It doesn't take into account the operator's ability. 2. As soon as the train in the station begins to move, the one behind can do the same. (CBTC is supposed to involve moving blocks as I understand it, not 100 stationary ones. Correct me if that's wrong). N.B. a train that creeps into a station is taking more time to decelerate and come to a stop than one that approaches the station at full speed. Longer deceleration times mean longer headways mean less capacity. Introducing a "safe" version of keying with CBTC does not increase capacity. True, but sometimes, trains catch up to their leader. CBTC will allow trains to move into the station quicker than present rules allow. If keying by were not only allowed, but encouraged, CBTC would not be necessary. |
|
|
|