Beresfield rail disaster
Encyclopedia
In the Beresfield rail accident of 23 October 1997, a coal train passed a red signal and ploughed into the rear of another coal train, causing a collision and derailment that blocked all four tracks. The accident occurred early morning at 06.32am Beresfield
, New South Wales
, Australia.
The railway lines through Beresfield are straight and level, and visibility of the signals would have been good. The flashing tail light of the stationary coal train may have been hard to see, as such signals are typically less bright than stationary railway signals.
The coal train that went through the red signal had a crew of two, who unusually had been rostered on the same shift for a long period of time. This practice is not desirable since it reduces safety through diversity, wherein one crew member feels alert when the other feels drowsy, and vice versa.
The coal train that went through the red signal was fitted with a simple vigilance control; unfortunately, this simple kind of control suffers from the counter-productive effect of mindless repetition. Since this accident, the vigilance control has been modified to have a degree of randomness of the length of intervals between checks. However, so long as it does not have a positive train stop
effect, the vigilance control cannot guarantee that the train passing a red signal
will be brought to a standstill.
Beresfield railway station, New South Wales
Beresfield is a railway station on the Main North railway line, , in the western suburbs of Newcastle, New South Wales, Australia...
, New South Wales
New South Wales
New South Wales is a state of :Australia, located in the east of the country. It is bordered by Queensland, Victoria and South Australia to the north, south and west respectively. To the east, the state is bordered by the Tasman Sea, which forms part of the Pacific Ocean. New South Wales...
, Australia.
The railway lines through Beresfield are straight and level, and visibility of the signals would have been good. The flashing tail light of the stationary coal train may have been hard to see, as such signals are typically less bright than stationary railway signals.
The coal train that went through the red signal had a crew of two, who unusually had been rostered on the same shift for a long period of time. This practice is not desirable since it reduces safety through diversity, wherein one crew member feels alert when the other feels drowsy, and vice versa.
The coal train that went through the red signal was fitted with a simple vigilance control; unfortunately, this simple kind of control suffers from the counter-productive effect of mindless repetition. Since this accident, the vigilance control has been modified to have a degree of randomness of the length of intervals between checks. However, so long as it does not have a positive train stop
Train stop
Part of a railway signalling system, a train stop or trip stop is a train protection device that automatically stops a train if it attempts to pass a signal when the signal aspect and operating rules prohibit such movement, or if it attempts to pass at an excessive speed.- Basic operation :The...
effect, the vigilance control cannot guarantee that the train passing a red signal
Signal passed at danger
A Signal passed at danger , in British railway terminology, occurs when a train passes a stop signal without authority to do so. It is a term primarily used within the British Railway Industry, although it can be applied worldwide.-Categories of SPAD:...
will be brought to a standstill.