中文说明：
基于元胞自动机模型对于交通事故下的高速公路交通流仿真，在不同大小车比例和交通流条件下，输出交通冲突数，评价道路是否安全。
English Description：
Based on cellular automaton model for traffic accident under the highway traffic flow simulation, under different conditions of large proportion and car traffic flow, several output traffic conflict, evaluate whether road safety.