高速路网流量均衡仿真的改进研究  

Improvement research on traffic flow equilibrium in highway network based on traffic simulation

作　　者：崔玮[1] 张俊友[2] 孙晓亮[3] 

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]山东科技大学交通学院,山东青岛266590 [3]交通运输部公路科学研究院,北京100088

出　　处：《广西大学学报（自然科学版）》2016年第2期512-519,共8页Journal of Guangxi University（Natural Science Edition）

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

摘　　要：针对高速路网中路段流量分布不均衡、交通拥堵常态化等问题,提出一种高速路网流量分配方法。由于传统路阻函数在交通分配中存在流量过饱和现象,采用Green-Shield速度—密度模型建立了分配结果更为精确的路阻函数。以京哈—京津高速组成的路网为例,运用Trans Modeler仿真工具对改进的交通阻抗函数进行了仿真验证。结果表明采用改进路阻函数得到的路网分配流量更接近实际流量,且分布更为均衡。A traffic assignment method is proposed to deal with the disequilibrium distribution of traffic flow and traffic congestion normalization in highway network. As traditional road impedance function is the characteristics of overflow in traffic assignment,the Green-Shield speed density model is used to improve the road impedance function with a more accurate assignment results. Taking G1-S15 highway network as an example,a Trans Modeler based simulation is carried out to validate the improved road impedance function. The result shows that the assigned traffic flow obtained by the improved function is closer to the real flow,and that it is more equilibrium in the road network.

关 键 词：路网均衡 动态分配 路阻函数 TRANS MODELER 

分 类 号：U491.123[交通运输工程—交通运输规划与管理]