基于速度风险势场的高速公路行车风险甄别方法

王博,张驰,任士鹏,刘昌赫,谢子龙

Expressway driving risk identification method based on velocity risk potential field

Bo WANG,Chi ZHANG,Shi-peng REN,Chang-he LIU,Zi-long XIE

表 6 基于3种速度风险势场强度的高风险路段甄别效果对比

Tab.6 Comparison of high-risk road section identification effects based on three velocity risk potential field intensities

类别 阈值 高风险路段占比/% 事故比例/% 总体事故比例/% 甄别效益比 侧向风险事故 纵向风险事故 形态不明事故 Ex 75.5 7.74 21.43 − 34.9 31.21 4.03 Ey 74.6 12.88 − 34.21 30.2 31.55 2.45 Ev 106.8 24.33 32.14 43.42 47.65 43.26 1.78