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利用路段传输模型研究了先进出行者信息系统(ATIS,Advanced Traveler In-formation System)环境下的可变信息板(VMS,Variable Message Signs)选址问题.提出一种路段行驶时间预测方法,用于车载ATIS的信息发布.数值模拟结果表明,ATIS渗透率存在一个临界值,低于该值时,VMS的位置应随着渗透率的增加远离路口,高于该值时,VMS的位置应靠近路口.结合ATIS渗透率确定VMS位置,能够减小系统总拥挤延迟.该方法有助于理解多种交通信息共同作用下的驾驶员路径选择行为和评价VMS位置对系统性能的影响.
This paper studies the location problem of Variable Message Signs (VMS) under the environment of Advanced Traveler In-formation System (ATIS) by using the section transmission model, and proposes a method for predicting the travel time of a section, Vehicle ATIS information published.The numerical simulation results show that ATIS permeability has a critical value below which the location of the VMS should stay away from the intersection with increasing permeability and above which the VMS should be located close to the intersection Combining the ATIS permeability to determine the location of VMS can reduce the total congestion delay of the system.This method is helpful to understand the drivers’ path selection behavior and evaluate the impact of VMS location on the system performance under various traffic information.