Abstract: In the identification of traffic congestion state, the original data acquisition usually adopted the floating car and road test equipment, which usually had large error and seriously affected the accuracy of various traffic analysis models. An information sharing system of traffic congestion based on TCP/HTTP was proposed, which could effectively integrate two kinds of information resources: the objective information data of the simulated floating car and traffic flow was collected by the TCP protocol; meanwhile, the subjective information data of traffic congestion state was uploaded by the HTTP protocol in real-time. The proposed information sharing system included traffic congestion information sharing collection, floating vehicle information collection simulated by intelligent terminal, traffic flow information collection of intersections, which could realize the function of remote calling schedule of the intelligent terminal. The proposed system can provide the most intuitive decision support for traffic congestion analysis.

Key words: traffic engineering, information sharing, high-frequency data

摘要： 交通拥堵状态识别中原始数据的采集，通常采用浮动车及路测设备，该方法普遍存在较大误差，严重影响各种交通分析模型结果的精度。基于TCP/HTTP的交通拥堵信息分享系统，能够有效融合两种信息资源，通过TCP协议采集模拟浮动车及交通流量客观信息数据，同时通过HTTP协议上传实时交通拥堵状态主观信息数据。该信息分享系统功能涉及交通拥堵状况分享信息采集，模拟浮动车信息采集，交叉口交通流量信息采集，并可实现对智能终端的远程通话调度功能。系统可为交通拥堵分析提供最直观的决策支持。

关键词: 交通工程, 信息分享, 高频数据