区域综合运输网络构建系统仿真研究

Simulation Research of Construction System of Inter-city Integrated Transportation Network

区域综合运输网络描述模型和构建系统是进行区域交通预测和网络规划的基础。通过对区域综合运输网络概念要素和系统数据构成的分析,在单项交通网路的基础上建立了多中心分层次的综合运输网络描述模型,并利用GIS技术探讨了多方式交通网络的构建方法。系统功能模块的设计可以提供一个可视化的交通网络编辑平台,实现了区域综合交通网络构建、网络图形和数据转换以及网络属性和社会经济数据的存储、修改、查询统计等功能。系统可以实时更新网络信息,为区域综合运输预测和网络规划提供准确完备的基础数据。

The Representation model and construction system of inter-city integrated transportation network are the bases of traffic demand prediction and network planning. Through the analysis of concept, elements and data composition, a polycentric hierarchy representation model of integrated transportation network was built on the basis of ~ingle transport network, and the method of the construction of multimodal transport network was discussed with the GIS technology. The functional modules provide a visual editing platform of transport network, realize the construction of inter-city integrated transportation network and the conversion of vectorgraph and network data, then achieve the functions of storaging, modifying, counting and inquiring the attribute and socioeconomic data of the network. The system can also update network information, offer accurate and complete data for the demand prediction and network planning of the integrated transportation network.