17-09-2017, 03:26 PM
My understanding differs from yours:
If the overlap is at the clearance point of points then yes it is the hazardous location, but ...
Perhaps this signal is a controlled signal (route) because of points in the overlap of the exit signal - in this case the hazardous location is not at this signal's overlap but after the exit signal.
Perhaps it's a controlled signal because there is a Level Crossing in the route, in which case that hazard (the level crossing) could be anywhere (almost) between that overlap joint and the next signal
Perhaps there are no points but it's bi-directional working; in some cases there might be a bang-road limit of shunt in route somewhere, the conflict point would be the overlap of that LOS.
If the overlap is at the clearance point of points then yes it is the hazardous location, but ...
Perhaps this signal is a controlled signal (route) because of points in the overlap of the exit signal - in this case the hazardous location is not at this signal's overlap but after the exit signal.
Perhaps it's a controlled signal because there is a Level Crossing in the route, in which case that hazard (the level crossing) could be anywhere (almost) between that overlap joint and the next signal
Perhaps there are no points but it's bi-directional working; in some cases there might be a bang-road limit of shunt in route somewhere, the conflict point would be the overlap of that LOS.