I'm trying to do a very vague Trainz route based on the Henley On Thames branchline. I would like to try and make the signalling as accurate as possible. So... Is there a signalling diagram of the Henley Branch that I could see or some very accurate info? I tried searching the web but no good. This would be appreciated a lot. Oh and one last thing, is the branch worked on a single line staff system like the Bourne End/Marlow branch?