基于BIM和驾驶模拟的道路安全评价研究

Study on Road Safety Evaluation Based on BIM and Driving Simulation

针对搭建驾驶模拟环境效率低、缺乏基于驾驶模拟的安全评价体系等问题,提出一种基于BIM和驾驶模拟的道路安全评价方法。利用道路BIM模型所含的丰富数据,快速搭建包括驾驶道路、沿线地形、场景对象和仿真交通流等要素的驾驶模拟环境;基于驾驶员生理数据和仿真车辆姿态数据,构建心理生理、运行速度和横向稳定性评价模型及熵权-模糊综合评价模型,实现对道路安全的综合评价。通过在某高速公路设计中实践应用,验证该方法可有效提高驾驶模拟环境搭建的准确性和工作效率,利用综合评价方法对设计提出优化,可在一定程度上提高道路安全水平。

Aiming at the low efficiency of building driving simulation environment and the lack of safety evaluation system based on driving simulation,a road safety evaluation method is proposed based on BIM technology and driving simulation.The rich data contained in the BIM model of the designed road can be used to quickly build a driving simulation environment including driving road,terrain along the road,scene objects and simulated traffic flow.Based on the driver physiological data and the simulated vehicle attitude data,the evaluation models of psychophysiology,running speed and lateral stability as well as the entropy-fuzzy comprehensive evaluation model are constructed to realize the comprehensive evaluation of road safety.The practical application in a highway design shows that this method can effectively improve the accuracy and efficiency of the construction of driving simulation environment.In addition,using the comprehensive evaluation method to optimize the design can improve the level of road safety.