基于交通波理论的改进动态路阻函数  

Improved Dynamic Road Impedance Function Based on Traffic Wave Theory

作　　者：宋博文[1] 张俊友[1] 李庆印 柳奇 

机构地区：[1]山东理工大学交通与车辆工程学院,山东淄博255049 [2]淄博市公安局交通警察支队,山东淄博255043

出　　处：《重庆交通大学学报（自然科学版）》2014年第1期106-110,共5页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：公安部应用创新计划项目(2011YYCXSDST058);山东省中青年科学家科研奖励基金项目(BS2011DX030)

摘　　要：以动态交通分配中的动态路阻函数与现状实际车辆行程时间的拟合度为基础,运用道路Greenshield速-密关系模型对原有交通波模型进行改进,建立了更适应于动态交通分配的改进动态路阻函数。通过TransModeler仿真进行实例验证,结果表明:改进动态路阻函数可行,改进动态路阻函数计算值比原函数计算值更接近仿真结果。Based on the goodness-of-fit between dynamic road resistance function in dynamic traffic assignment and the current situation of the actual vehicle travel time, the original traffic wave model was improved by the relationship mod- el relating road Greenshield speed-density. And the improved dynamic road resistance function was then established to adapt the dynamic traffic assignment. A case study was performed to validate this function by TransModeler simulation. The results show that the improved function is practicable. The calculated value of the improved dynamic road imped- ance function is closer to the simulation results compared with the original function.

关 键 词：交通波 TRANSMODELER 动态分配 动态路阻函数 平均行程时间 

分 类 号：U491[交通运输工程—交通运输规划与管理]