基于BPR函数的济南城市道路研究

Research on Jinan Urban Roads Based on BPR Function

以济南城市道路为例,对BPR函数模型的适用性进行系统研究。通过对济南市各级城市道路交通特性的调查,采用数理统计和突变理论方法进行数据拟合,标定济南市各级城市道路的BPR函数参数值,以此研究济南市各级城市道路BPR函数的适用性。同时通过分析影响BPR函数模型适用性的因素对部分路段引入非机动车影响的BPR函数模型改进型式,探讨其求解方法。

Taking Jinan urban roads as examples, the research of applicability of BPR function model has been done. By investigating traffic characteristics of Jinan urban roads of various degrees and taking mathematic statistics and catastrophe theory to do the data simulation combination, BPR function parameters of Jinan urban roads of various degrees are demarcated. The BPR function parameters are used to study the applicability of BPR function of Jinan urban roads of various degrees. At the same time, by analyzing the factors influencing the applicability of BPR function, the BPR function model that was affected by non- motor vehicles in part roads has been improved and the solutions have been explored.