基于不同车型轮迹分布规律的高速公路轮迹分布预测方法

Freeway wheelpath distribution prediction method based on different type vehicles wheelpath distribution law

通过对多条高速公路车辆轮迹分布调查分析,发现同一车型在不同高速公路上具有相似的车道和轮迹分布特征,利用2检验证明同一车型的轮迹在不同高速公路上服从相同参数的正态分布,从统计学角度对这一现象进行了理性分析,并据此建立了基于交通流车型组成的轮迹分布和轴载分布计算及推测方法,以某高速公路为例将调查结果与预测结果对比证明了该方法的准确性.

According to the analysis of distributing characteristics which obtained by the investigation of different types vehicles of many freeways,the law is discovered that distributing characteristics of same types of vehicles are similar on different freeways,using test to verify that distributions of same types of vehicles are submitted to identical normal distribution,and the rationality of this phenomenon is discussed with statistical point of view.Based on traffic flow,calculated and predicted method of wheelpath distribution and axle load distribution are established.In the end,to confirm the accuracy of this method,an example is taken by contrasting the survey results and the predicted results.