Page 1 of 1
| Sapperton Tunnels 01/01/2012 at 16:16 #26576 | |
Steamer
3984 posts |
Hi, Why do Sapperton tunnels have lights showing whether or not they are clear? "Don't stress/ relax/ let life roll off your backs./ Except for death and paying taxes/ everything in life.../ is only for now." (Avenue Q) Log in to reply |
| Re: Sapperton Tunnels 02/01/2012 at 01:49 #26609 | |
MikeW
65 posts |
" said:Hi,I seem to recall reading somewhere that it is to allow the signaller, in the event of a failed train, to be sure whether the failure is inside the tunnel or not, since different recovery procedures are required. That may well be tosh - my memory isn't the most reliable instrument these days! Hopefully others with more detailed knowledge will also respond. Mike Log in to reply The following user said thank you: Steamer |
| Re: Sapperton Tunnels 02/01/2012 at 05:56 #26615 | |
|
pilotman
189 posts |
This feature is also in operation at Stansted, which is a single line tunnel, but I can't remember the reason.
Log in to reply The following user said thank you: Steamer |