How do signals refer to specific lines in the case of diverging and converging routes?
Multiple signals may be mounted on a signal assembly (bracket post, signal gantry, etc.) to provide signal indications for diverging routes. The signals from left to right correspond to the diverging routes from left to right. If one of the routes is the main line, the signal for it is usually placed higher than the others (the maximum permissible speed applies for running through on it; speeds must be lowered for the divergences). For instance, a very common combination is for three stop signals to be mounted together, with the middle one being placed higher and providing the indication for the main route, whereas the signals on the left and right of it provide indications for the branches on either side. If all routes are of equal importance, all signals are at the same height. (‘Equal importance’ in practice means all the routes allow the maximum permissible speed for the section.) In rare circumstances, one can find multiple signals placed on the same mast one above the other; in s