Signal advance by train type on main tracks

A signal pre-passing is the passing of a signal with a closed appearance. This dataset contains the number of SPAD (" Signal Passed At Danger ") by type of train on the main tracks.A signal pre-crossing certainly does not systematically lead to a dangerous situation.By analogy, it is easy to compare this problem to that of motorists who run red lights, exposing themselves to a collision with vehicles entering the intersection itself. In the railway world, when a signal is crossed, this intersection is called "the first danger point", from where the train that has passed the closed signal can collide with another train.