【摘要】 目前,我国各大城市交通信息采集和传输问题已基本解决。但是,交通信息与路网空间信息的匹配和融合问题却依然严重,使得大量的实时路况信息难以得到有效应用,成为制约城市路网管理和出行服务的技术瓶颈,直接影响车载导航系统、公众出行信息平台、物流运输系统等位置服务(LBS)与智能交通系统(ITS)应用的服务水平。鉴此,本文探讨了城市路网信息融合的内涵和特征,及其关键技术,包括线性参考系统与空间信息融合、时空动态分段和多级动态分段、多模式交通网络构建技术和动态连通关系自动生成等技术问题,并提出了相应的解决方案。更多还原

【Abstract】 Optimizing traffic and providing real-time information have become important tasks for modern urban management and public services.Currently,quality of city road network service is still quite weak,which restricts both the balanced utilization of road network and the improvement of travel efficiency.Although the technical bottleneck of traffic information collecting and transferring have got broken through in recent years,the lack of real-time traffic information processing technologies however results in low efficiency in involved applications,such as vehicle navigation system,public travel information service platform,logistics system and other ones in Location Based Service(LBS)and Intelligent Transportation Systems(ITS).As one of important means to process city road network related information,information fusion has great influence on the service quality of city road network management and traveling information service in ITS,LBS,modern logistics,and emergence response applications.This paper discussed the information fusion technologies in detail for city road network management and traveling service,including the integration of linear reference systems and road spatial information,temporal and multilevel dynamic segmentation,multi-model transportation network building,and dynamic connectivity relationship processing,and evaluated the corresponding solutions respectively.更多还原