Abstract
In improving the collision safety of the train in a level crossing accident, it is important to clarify the relationship between the damage to the occupants in the train and the collision situation. We focused on the number of occupant injuries and organized estimated collision speeds and collision obstacles as to serious level crossing accidents and major level crossing accidents defined in this report from FY 1987 to 2016. As a result, the distribution of estimated collision speeds and the average of speeds estimated in serious level crossing accidents and those in major level crossing accidents coincided with each other irrespective of the number of occupant injuries. As the result of a detailed study on the situation of these accidents, we found that the number of occupant injuries was reduced even at high collision speed in the case of an offset collision. The collision obstacle is mainly a motor truck (nearly 70 percent). Among them, the number of occupant injuries tended to increase when the train collided with a trailer or a dump truck.