Support System for Traffic Congestion Measures in Urban Areas by Traffic Assignment Method Combined with Capacity Analysis of Signalized Intersections

本文提出了一种可以预测网络中各路段小时交通量的分时交通分配模型和离散系统仿真中常用的Petri网模型。在这项研究中，我们已经开发了两个额外的系统模型，通过使用这些模型。第一个系统模型与信号交叉口的通行能力分析相结合，通过对增量分配法的稍加修改，得到最大网络流量。本文提出的系统模型应用于一些人工道路网络，以揭示修改后的模型的实际应用的性质，并讨论道路网络和土地利用之间的相互关系，考虑道路承载力。第二个系统模型是一个支持系统，以评估交通系统的变化，这是由一个大的网站开发产生的替代方案。该系统模型由出行预测系统、交通需求预测系统、路外停车容量确定系统和专家系统辅助信号交叉口规划设计系统4个子系统组成，通过对金泽市区和部分人工路网的应用，取得了有益的效果。

We have proposed a time-of-day traffic assignment model which can predict the hourly traffic volume on each network links and Petri-net Model which is usually used for discrete system simulation. In this study, we have developed two additional system models by using these models. The first system model is combined with capacity analysis of the signalized intersections and obtain the maximum network flow by the slightly modified Incremental Assignment procedure. The system model suggested here is applied to some artificial road networks in order to reveal the properties of the modified model for practical use and to discuss the interrelationships between the road network and land use considering the road netwoak capacity.The second system model is a support system in order to evaluate the alternative plans of transportation system changes, which are generated by a large site development. The system model consists of four subsystems ; the estimation system of trips generated, the traffic demand estimation system, the determining system of off-street parking capacity and the planning and design support system for improvement signalized intersections by Expert System.The useful results can be obtained through the applications to Kanazawa urban area and to some artificial road networks.