基于WebGIS的城市交通信息的实时发布架构与实现

Architecture and Realization of Urban Traffic Information Real-time Release Based on WebGIS

基于ArcGIS Server针对城市交通信息提供地图和实时路况的发布,首先分析了ArcGIS Server的架构,阐述了富客户端、Flex和REST的概念。对使用ArcGIS Server构建B/S结构发布方法和原理进行了说明。针对城市交通信息的发布,给出具体的发布框架和发布数据优化策略。最后以杭州市智能交通信息平台的建设为例实现交通路况的发布和实时路径网上计算。结果表明,该方法能够提供足够的GIS分析功能,并且在交互效果上明显优于以往的传统Web。

The paper outlined the release of the maps and real-time road situation about the information of urban traffic based on ArcGIS Server.Firstly,the paper analyzed the architecture of ArcGIS Server,and expatiated on the conception of the RIA,Flex and REST.Secondly,it explained the method and theory of constructing a B/S frame based on ArcGIS Server.It also gave the actual frame and data-optimizing tactic of release about the release of the urban traffic.Finally,taking the traffic information system of Hangzhou as an example,it realized the release of the real-time road situation and the online computation of real-time route.As a result,the method is able to provide enough function of GIS,and has a better impact compared with the traditional Web application.