George Harris
Engineer
The chances of a short passenger train being derailed due to going into emergency braking is almost nil. The possibility of wheel flat spots from the brake locking up the wheelset is much higher. The brake line propgation time and draft gear run in issues are near insignificant in a train as short as the one in this case.
The stopping distance of a long freight train is much longer due to brake line propgation time and greater mass per wheel. the one mile commonly quoted is normally stated as "up to a mile" but somehow those first few words seem to be forgotten.
However, even short freights can stop in will under one mile There is an example, quite a few years back now, of a short freight that hit a school bus (the driver did not stop and open her door as required by law) moving at near 60 mph and stopping in something like 1500 feet distance.
The stopping distance of a long freight train is much longer due to brake line propgation time and greater mass per wheel. the one mile commonly quoted is normally stated as "up to a mile" but somehow those first few words seem to be forgotten.
However, even short freights can stop in will under one mile There is an example, quite a few years back now, of a short freight that hit a school bus (the driver did not stop and open her door as required by law) moving at near 60 mph and stopping in something like 1500 feet distance.