Last Thursday, a train crash occurred in the United States unexpectedly station "New Jersey" "He Boken" station, the Federal Investigation Unit "National Transportation Safety Board" after a preliminary investigation found that the trains stop at the time, more than twice the prescribed speed limit. As for why the speed limit will be exceeded, requires further investigation. The accident caused the death of a woman, hundreds of people light injuries.
The Associated Press quoted the "National Transportation Safety Board" preliminary investigation report, the train driver in less than a second after pressing the emergency stop button, which trains hit the buffers on the stall, and lead to a train derailment, and crashed into the platform , causing heavy casualties.
National Transportation Safety Board said that according to regulations, when the train stops, should remain eight mph, which is 12.8 km speed; however, the preliminary investigation in view the data record and the monitor screen, it was found last Thursday, this lists what train is about to stop when the speed has reached twenty-one miles per hour is 33.7 km, more than twice exceeds the specified speed limit, and should have been kept idle mode the throttle valve, all is now being turned on; and the driver pressing the emergency brake button is not long, the train will hit the platform.
According to an anonymous driver said, within New Jersey commuter train, there is a car alarm system installed, when the train speed of more than twenty miles per hour, which is thirty kilometers when the warning loud and force stop front of the train. But why this accident trains in time, even beyond the prescribed speed limit, speed limit warning and even that is not representative of the warning system fails, Transportation Safety Board said they would continue to investigate.

