combined level crossing flashing lights and traffic lights

[Peter]

It'd be good to see this photo; I really can't think of one in the UK. Even where there is a level crossing very close to a crossroads wich necessitates interlocking between the road traffic lights and the crossing I do not visualise the "wig-wags" on the same post as the traffic lights.

I can't find anything in the book itself which you mention..

1. Certainly it could easily confuse a driver to be presented by a green traffic light and flashing red wig-wags. Let's hope they do obey the latter. Really can't understand what circumstances would make this a sensible arrangement. Note that in the UK a police officer has the authority to give permission for a driver to pass a red traffic light, but NOT flashing red wig-wags (because these are used to protect AHBC and this could be a very dangerous thing to do)

2. I'd certainly hope that anyone who decided to produce such an arrangement would have submitted to a Human Factor's Assessment.

Anyone else aware of such installations- I guess not in the UK but elsewhere......

I'm in the same camp as you. The only thing that I can think this refers to is the Mk1 Penguin barriers that had the concrete post with the barrier support and motor combined on the same unit that held the road lights.

Peter