The Health and Safety Executive's initial report said that the disaster at Great Heck, near Selby, was a "wholly exceptional" accident. It was due not only to Hart's lack of sleep, but also to a cruel combination of coincidences. In the first impact, the GNER Newcastle-to-King's Cross passenger train hit Hart's Land Rover at 117mph. This might have led only to painful injuries if, after careering along upright off the track, the passenger train hadn't met, head on, a freight train coming the other way, at 47mph, laden with a thousand tons of imported coal. Chaos and carnage ensued.