Abstract
The cranial stress distribution and morphological characteristics of cranial fractures in adult heads run over by motor vehicle were investigated. Cases of adults' heads run over by motor vehicles were collected. The skull fracture degrees are categorized into no skull fracture, multiple skull fractures, and skull fractures with brain tissue overflow. According to China's road traffic management system, vehicles in traffic accidents are categorized as heavy vehicles (weight ≥ 12 t), medium vehicles (4.5 t ≤weight < 12 t), light vehicles (1.8 t