Collecting, Processing, and Integrating GPS Data Into GIS

mahyarov · 10-27-2012, 06:45 AM

This synthesis report will be of interest to various transportation-related groups around the world involved in collecting positional data with global positioning systems (GPSs) and integrating these data into existing geographic information systems (GISs). The focus is on the major issues that these groups are facing with data collection, data smoothing, and data integration, including identification of inaccurate, bad, or missing data points, and the lack of standard map matching algorithms. It addresses the fact that each application uses its own GPS equipment, GIS database, and internal set of GPS data processing rules, and that information sharing and coordination has been limited. This synthesis was accomplished through a literature review and a survey of the state-of-the-practice activities in GPS data collection, data smoothing, and map matching. This report of the Transportation Research Board provides information on the potential and the problems of integrating GPS data with data from GIS to provide departments of transportation with a powerful set of planning and programming tools. It addresses existing data standards and their applicability, procedures for processing and integrating spatial data, map matching algorithms and protocols, and recent developments in positioning, including cellular technology. The synthesis identifies a six-step method designed to help improve the quality of maps and reduce the severity of problems associated with GPS-GIS integration.

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