In order to solve the safety problem of different grades roads and crashworthy capacity of overpass design, to meet the traffic safety requirements under different conditions, by using similar principle, several overpass crashworthy barrier in different levels had been gotten here, and had been proved to have better adaptability. In preliminary work, the optimum structure parameter of SH overpass crashworthy barrier had been gotten through orthogonal test, and this research is also based on the orthogonal test majorization result. During the si...
