高速公路路基宽度变化段线形设计指标优化研究

摘要

为了降低高速公路路基宽度变化段的行车风险，从驾驶员视觉、驾驶行为和车辆行驶状态等角度构建了安全性评价模型，并通过驾驶模拟实验数据分析，对高速公路路基宽度变化段的线形设计指标进行了优化。%A driving safety evaluation model is built considering driver’ s vision, driving behavior and vehicle travelling states. Through driving simulation experiments, geometric design parameters of highway subgrade width transition section is optimized to reduce the driving risk.