signalling

Broken signalling system and failed brakes led to Pretoria train crash: The signalling systems between two stations in Pretoria was broken for about two years and contributed to the train crash on Saturday. That is what the .... Google Alert - Pretoria Pretoria train accident scene's signalling system not working for two years: The signalling system on a Pretoria train line where a Transent rail tamping machine crashed into a stationary metrorail train injuring 64 …