基于货运车辆GPS数据的交通调查技术研究  

Traffic Survey Techniques Study Based on the Freight Vehicles GPS Data

作　　者：詹起林[1] 高峻[1] 王磊[2] 

机构地区：[1]上海师范大学地理系,上海200234 [2]上海市城市综合交通规划研究所,上海200032

出　　处：《地理与地理信息科学》2011年第3期30-33,37,F0002,共6页Geography and Geo-Information Science

基　　金：国家自然科学基金项目(40871256);上海市教委重点学科<地理学与城市环境>项目(J50402)

摘　　要：基于GPS轨迹点与道路网络拓扑数据,利用GIS技术进行OD点和交通通道的调查研究。利用货运车辆GPS轨迹数据,分析轨迹点的时间、速度及其空间分布特征,实验并确定合理的阈值过滤出点簇,生成OD点;用轨迹点捕获含有拓扑关系的临近路段,通过最短路径算法生成货运车辆沿道路的线型轨迹,最终获得完整的货运车辆出行通道调查数据。与传统交通调查方法相比,该方法的组织实施环节大大减少,调查数据和成果更加客观可靠,是一种通过信息技术进行交通调查研究的全新尝试。Traffic survey is the foundation of urban transportation plan,construction and management.In the traditional study of traffic survey,a lot of manpower and material resources are required.After studying the research progress in the traffic survey,based on the GPS track points,road network topology data,and GIS technology,traffic technology research of OD points and traffic channel was realized in this paper.1） By using freight vehicles GPS track data under customs′ monitoring,the time,speed and mileage information of track point,and the spatial distribution characteristics about these track points were analyzed,by determining a reasonable threshold to filter out the cluster of stop points,and then traffic OD points were generated.2） GPS track points can be captured to the nearest road,it can obtain the linear track of freight vehicles travelling through the shortest path algorithm.Additional the road sections without any track points recorded were collected to produce a complete vehicle traffic channel travel during freight vehicles driving.3） In the end,it calculated the channel operation data combined with track points GPS attribute information on the channel.The traffic survey technology was used in the fourth comprehensive traffic survey in Shanghai,ultimately got a number of achievements that reflect traffic conditions,for example the OD distribution graph about the freight vehicles port and airport,shipping channel flow graph and so on.This study has shown that the use of this survey method can greatly reduce the steps of the traffic survey organization and implementation.Survey data and results are more objective and reliable.This is a new information technology for further extension and in-depth investigation in the other applications of traffic areas.

关 键 词：交通调查 GPS OD 交通通道 最短路径 

分 类 号：P208[天文地球—地图制图学与地理信息工程]