路段容量约束下路网结构与OD分布的最优匹配

The optimal matching based on the link capacity constraints to find network structure and OD distribution

基于路段容量约束,寻找与路网布局相匹配的OD分布,探索解决交通供需矛盾的途径。将城市路网分为若干交通小区,假设每一交通小区之间的OD为未知量,并且定义了合适路径这一新的概念。利用合适路径理论,找出若干条满足条件的各个小区之间的出行路径,建立线性规划模型,并求解出每条路径流量以及各个交通小区的OD量与路网布局匹配的OD分布,得到路网的最大容量,分析了路网容量与合适路径待定系数之间的变化关系。对交通规划路网流量分析、交通小区开发强度控制和交通组织具有一定的参考价值。

Based on the link capacity constraints,the OD distribution which is matched with the road network layout and explore how to solve the contradiction between traffic supply and demand is found.The urban road network are divided into some traffic areas, and the OD between each traffic area is assumed as the unknown number, at the same time that the new concept of the right path is defined.The theory of the right path is applied to find out the article number of paths between the areas and also meet the conditions,while the linear programming model is establ each traffic area are solved.The OD distribution wh shed.Each way runoff and the OD of ch is matched with the road network layout is obtained.The maximum capacity of the road network is calculated.The variable relationship between the road network capacity and the undetermined coefficient of the appropriate path are analyzed.This research will play a role in the analysis of road network traffic, traffic planning, road network traffic analysis, the control of traffic area development-intensity and organization in traffic.