详情

原文传递 LOCATION PROBES : A NEW TECHNOLOGY FOR IMPROVING MAP DATABASE ACCURACY.

题名：	LOCATION PROBES : A NEW TECHNOLOGY FOR IMPROVING MAP DATABASE ACCURACY.
作者：	Goodwin-Cecil-W-H
关键词：	Digital-mapping; Global-Positioning-System; Probe-vehicles
摘要：	The advent of location-enabled devices and the technology of location-based Services opens the door for a new way to improve the spatial accuracy of digital road maps. For the last decade and more accurate digital road maps available to public and private sector users were produced by expensive processes such as running the roads with differential GPS-equipped vehicles staffed by company employees. The new two-way communications capabilities under development to support location-based services, and the center-based architecture of those services, now makes it possible for all location-enabled devices to serve as location probes, providing real-time GPS observations to central sites where they are available for long-term collection and statistical analyses. This paper details how this new capability will allow existing digital maps to be modified to reflect the as-driven road network at minimal cost. Given a sufficient period of collection horizontal accuracies of road centerlines of 2-3 meters can be obtained for little cost beyond that of post-processing. It is possible that even lane-level information can be extracted for heavily-traveled roads.
总页数：	ITS America. Meeting (12th : 2002 : Long Beach, Calif.). Securing our future : ITS America 12th Annual Meeting and Exposition 2002 : conference proceedings. 2002. pp9
报告类型：	科技报告