The pertinent prevention and pre-control measures are put forward so as to restrain severe fishing boat collision in outer Zhoushan sea area.

The system is then applied to reproduce an accident of collision,which occurred in the north fairway at the mouth of Yangzi River.

Study on the relation between ship's tonnage and collision accidents;

Identification of human unsafe acts in collision accidentswith grey relational analysis;

The Study on the Relation between Ship's Measure and Collision Accidents;

Analysis of a "third-party" liability in a collision accident;

It is concluded that the relation between roadside hazard degree and the accident rate at roadside is weak negative,but it is weak positive for the total accident rate,and the collision accident rate at the same scene.

This paper combined multi-body dynamics method with pedestrian injury analysis to reconstruct a real car-pedestrian collision accident exactly and analyzed the dynamic response and injuries of pedestrian in the course of collision.

Using the reverse-reasoning method for calculating the car\'s pre-impact motion,the whole process of the car-to-car oblique crash accident can be reproduced scientifically and the responsibility of each party suffered in the accident can be confirmed.