SpacePhoenix
Established Member
- Joined
- 18 Mar 2014
- Messages
- 5,492
Doesn't really matter whether the points are needed to get a train in/out of a T3 or not because we won't necessarily know where trains will be entering or exiting when a possession is taken. When a train turns up to enter the possession the signal will be passed at danger anyway so you'd set the points according to the route card (with the PICOP's permission if you're moving points within the possession as people could be working on them for all I know) and you're done! As soon as the PICOP confirms the train is clear and the protection has been replaced you'd replace your points back into the position to protect the possession. (There's a lot more to it than that but that's the simple version ref points!)
We have "reminder appliances" yes - these take different forms depending on what kind of signalling system is in use (VDU/panel/lever frame etc...) For a panel (which Wimbledon SCC is) they're plastic 'caps' that go over the route buttons/point switches that physically stop you pushing them and setting routes or swinging points. For a VDU system (computer based) they work in exactly the same way but they are software based.
What's PICOP short for? Person In Charge Of Possession?