微观仿真软件在公路安全性评价中的应用

现有公路安全性评价方法从公路线形几何条件、运行车速协调性等方面进行评价,是静态和局部的评价方法.利用微观交通仿真进行动态全局评价,不仅可以对公路线形实现连续评价,而且可以将驾驶行为、车辆类型比例、交通流量考虑在内,更加综合、全面地对公路安全性进行评价.以重庆长寿至梁平高速公路安全性评价为例,对提出的新方法与传统方法进行了验证和对比分析.

Study on the Application of Microscopic Simulation in the Highway Safety Evaluation

The existing highway safety evaluation method focuses on geometric curve and operating speed coordination. The traditional method is static and partial evaluation method. The paper proposes a dynamic and global evaluation method using microscopic simula- tion. The proposed method cannot only evaluate safety continuously, but also consider drivers＇ behaviors, the composition of vehicle type, traffic volume. The proposed method can comprehensively evaluate highway safety. The paper takes a highway from Chongqing to Liangping as an example and compares the evaluation results of the proposed method with the traditional one.