Another Near LU Train Crash Sept 20, 2010 7:40:05 GMT
Post by thedoctor on Sept 20, 2010 7:40:05 GMT
Sept 19, 2010 10:14:59 GMT @bob said:
Sept 14, 2010 19:36:05 GMT @thedoctor said:
It couldn't even be done manually. It would be communicated via a Wrong Direction Move procedure, if you wanted a train to run in the wrong direction. Then they'd do, what they'd do for that to be carried out correctly.
Plaistow is a manually operated site, albeit with King (Through) working for when trains are just passing by.
You seem to have become confused by automatic and manual operation too!
The automatic systems do not allow wrong way working with therefore it is manual. A driver has to have specific instructions to proceed along a line incthe wrong direction and then only at walking pace. They probably have to manually raise the trip lever as well as the train would be going over the ramps in the wrong direction.
Even when the signalling is manually operated interlocks and other safety measures should prevent a train being sent down a wrong line
You stated that a signaller could manually create a conflicting move. This is not the case. You then get the gist of it by mentioning interlocking, which is believed to have not worked, hence what occured. At some locations, there are 'Non Safety' systems that can work out if something is allowed signalling wise, before it reaches the IMR/SER.
A Wrong Direction Move would indeed involve the tripcock to be cut out and the train to travel at a speed where it could stop short of an obstruction (amongst other things). A WDM was not carried out though.