Analysis of information sources in references of the Wikipedia article "Cowden rail crash" in English language version.
Depot Test Magnet - A permanent magnet, used to test the operation of a train's AWS equipment, may be provided at the exit of certain maintenance depots.
TPWS is provided: on passenger lines, at all main running signals capable of showing a stop aspect ... which protect crossing or converging movements
Depot Test Magnet - A permanent magnet, used to test the operation of a train's AWS equipment, may be provided at the exit of certain maintenance depots.
TPWS is provided: on passenger lines, at all main running signals capable of showing a stop aspect ... which protect crossing or converging movements
