A westbound train
passed danger signals in fog in the wartime blackout and collided at about 30 mph with an eastbound train traversing a crossover. A major contributory cause was that the signalman had erroneously suspended "fog working", which would give greater distances between trains, due to a misunderstanding about whether fogmen were on duty. The fog was worsened by the nearby
Manchester Ship Canal and visibility was as low as .{{Citation ==Inquiry==