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Traffic Simulation for Evaluation of Traffic Management and Operation

用于评估交通管理和运营的交通模拟

基本信息

批准号：
04650484
负责人：
INOUYE Hiroshi
金额：
$ 1.41万
依托单位：
Okayama University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

项目摘要

To introduce traffic management and operation schemes, effects and influences on traffic flows should be estimated precisely. To this end, two traffic simulation methods in urban road networks are developed in this study.1. One is an equilibrium traffic assignment modelcombined with estimation of junction delays. For each turning flows, junction delays are induced analytically as a function of flows and traffic signal control parameters. Traffic assignment used an iterative procedure, and flow-delay curves are selected based on latest link flows. In this method, precise modeling of junction flows was enabled and estimation process was sharply promoted in efficiency compared with usual simulation model. Through an application to Kobe city, it was cleared that the model is useful for estimation of traffic management and operation schemes.2. The other is a precise network simulation method, which represents traffic flows on a road network dynamically, modelling motions of individual vehicles. The characteristics of the model is to represent the constitution of roads as a detailed network and to move vehicles taking into account the mutual interaction of vehicles and the coordination with signal indications. The model produces signal settings and route choice endogenously, and has a faculty of computer graphics presentation of the traffic flow state on a network. Through practical simulations, it was cleared that the model reproduces interaction delays adequately and that the exact simulation is possible on a fairly large scale network.

交通管理和运营方案的出台，需要对方案对交通流的作用和影响进行准确的评估。为此，本文提出了两种城市道路网络交通仿真方法.一种是结合交叉口延误估计的均衡交通分配模型.对于每个转向流，路口延误诱导解析流量和交通信号控制参数的函数。交通分配采用迭代的方法，根据最新路段流量选取流量-延误曲线。与通常的仿真模型相比，该方法能够精确地模拟交汇处的流量，并大大提高了估算过程的效率。通过对科比市的应用表明，该模型对交通管理和运营方案的评价具有实用价值.另一种是精确的网络模拟方法，它动态地表示道路网络上的交通流，模拟单个车辆的运动。该模型的特点是将道路的构成表示为一个详细的网络，并考虑到车辆之间的相互作用和与信号指示的协调来移动车辆。该模型内生地产生信号设置和路径选择，并具有计算机图形表示网络上的交通流状态的能力。通过实际的模拟，它是明确的，该模型再现相互作用的延迟充分和准确的模拟是可能的一个相当大的规模的网络。