Track circuits provide continuous real time detection over a track segment and any loss of power or disconnected wire results in a restrictive signal indication to the train.
However, our observations have shown that there is potential occurrence for conflict when motorists do not adhere to legal right-of-way for permissive signal indications.
If a locomotive engineer missed a signal, the train would automatically stop, and could not be moved until the engineer complied with the signal indication.
At a signalized crossing, a pedestrian is subject to the applicable pedestrian traffic signal or, if no pedestrian signal is displayed, the signal indications for the parallel vehicular movement.