Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 7, 2005 13:40:15 GMT
If you were to overshoot at a station, what is the procedure that you have to carry out? I take it that in you undershoot the marker, you can simply move forward to open the doors.
|
|
Colin
Advisor
My preserved fire engine!
Posts: 11,311
|
Post by Colin on Dec 7, 2005 14:28:55 GMT
There's three proceedures, which is used depends on how far past you go.
1, cut out the leading doors, then open up as usual
2, continue to the next station, without opening doors
3, set back in the platform*
In any case the line controller must be informed, and station staff will be needed to give assistance in dispatching the train. The first two options are not a major crime as such, but if number three is used (which is quite a hefty manovoure, and not a case of using reverse*), the driver can expect a chat with a duty manager.
In the case of stopping short, a driver should know what is occurring and give it a gentle nudge before coming to a stop
* It should be noted that current rule (Sep 2011) is to put the train reverse, subject to following the correct procedure, if the train is less that 1 car beyond the platform.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 7, 2005 17:12:31 GMT
How easy is it to overshoot a station? (Might seem a stupid question....)
Do you, after a while, just perform on autopilot? (If you understand what i mean??)
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 7, 2005 17:41:07 GMT
How easy is it to overshoot a station? (Might seem a stupid question....) Do you, after a while, just perform on autopilot? (If you understand what i mean??) After a while you get to know where to put the brake on, to stop in the right place. The trick being to NOT put the TBC into off and Release when COMING to the end of the platform, otherwise, there's a serious risk of overshooting, even if you know you're gonna stop short. Best then to give it a nudge up to the stopping mark. So, yes, you could say you drive on autopilot after a while. And you mentally know this at each station. For me, it's a weird feeling in the back of the neck... The risk of overshooting is measured by how you handle the train. If you drive without regard for speed limits into stations, or belt round a 15mph corner at 25mph, then the risk is great. Of course, eash type of stock has it's own technical characteristics, so adjust accordingly. There are 'boards' in the tunnels, counting up from 1 to 6,7 or 8, depending on the length of your train, with an ! meaning all cars clear of the platform - carry on to next stop, FDCO [first door cut out] and FDCO LIMIT. |
|
Phil
In memoriam
RIP 23-Oct-2018
Posts: 9,473
|
Post by Phil on Dec 7, 2005 19:24:51 GMT
It's ALL route knowledge (the bit the public doesn't understand)
For example on the WSR one of the stations looks level, but, halfway along the platform, drops away at 1/100. So as you come in, you are VERY tempted to ease the brake, but you don't because of the gradient.
Most drivers by choice apply a bit 'too much' and then ease off as the train stops (but there is another thread at the moment as regards one type of Stock - I'll let Colin sort that one ;D ;D). If the weather is bad you simply 'get hold of' the train that bit earlier and still stop in the right place.
The exception, as has been posted recently, (Colin?) is ATO, which cannot detect a wet track and if allowed to do its 'own thing' can lead to some interesting situations (T/op 92?)
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 7, 2005 19:41:18 GMT
It's ALL route knowledge (the bit the public doesn't understand) For example on the WSR one of the stations looks level, but, halfway along the platform, drops away at 1/100. So as you come in, you are VERY tempted to ease the brake, but you don't because of the gradient. Most drivers by choice apply a bit 'too much' and then ease off as the train stops (but there is another thread at the moment as regards one type of Stock - I'll let Colin sort that one ;D ;D). If the weather is bad you simply 'get hold of' the train that bit earlier and still stop in the right place. The exception, as has been posted recently, (Colin?) is ATO, which cannot detect a wet track and if allowed to do its 'own thing' can lead to some interesting situations (T/op 92?) Thats right! ATO can't detect what the weather is like, so invaribly when ATO tells the train to start braking, whe wheels lock, then the darn WSP [wheel slip protection] cuts in and releases the brakes, then the ATO tries to put the brakes back on and the WSP cuts in again, and so on. Result is a very lively ride, and one T/Op with soiled underwear and possibly a PAC overrun. If the over-run isnt past the FDCO LIMIT board, just cut out the leading doors, open respective cab side door and then open saloon doors. If you go way past the PAC, get hold of Control [if the radio works], advise your passengers about the reason for not stopping at that station, [BE HONEST!!!] and continue to next stop. If the weather is really bad, I tend to drive in Coded Manual, after obtaining clearance first. [PAC=Platform Area Commander, a sort of transmitter under the platform that tells the trains ATO system to stop] |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 7, 2005 21:46:39 GMT
The trick being to NOT put the TBC into off and Release when COMING to the end of the platform, otherwise, there's a serious risk of overshooting, even if you know you're gonna stop short. Well on a 92ts yes, however on other "conventional stock" you can, as thats the way to give a nice smooth stop. You apply the brake, then release the brake at the last minute when there is still enough brake applied to stop the train, however as it is releasing, you will stop smoothly; this is also known as a "rising brake" On the 92ts if you go to off and release at the last minute as you know, the brake comes off very quickly and then takes years to come back on again! |
|
