Modern Remote Sensing Techniques Supporting Traffic Flow Estimates

Dorota Grejner-Brzezinska and Charles Toth

Abstract:	The major focus of this paper is on the feasibility of airborne multisensor remote sensing systems to support the traffic flow parameter estimation. The major aspects to be considered are the (1) primary sensors used in traffic monitoring from airborne platforms, (2) analysis of the multisensor tracking system characteristics, and (3) the use of the system for estimating the traffic flow parameters. The sensor suite that will be presented is based on dual frequency geodetic grade GPS receivers, high accuracy INS, and a 4K by 4K CCD digital camera. The traffic flow parameters that are presented are (1) the vehicle travel distance and (2) velocity estimates based on tracking the vehicle in the georeferenced imagery. Preliminary results based on a data set collected from a helicopter test flight over a transportation corridor in Tucson, Arizona in May 2002 are presented. The feasibility of using airborne imagery for traffic flow estimation is demonstrated. In addition, a brief discussion of spaceborne and airborne platform suitability for traffic monitoring is briefly addressed.
Published in:	Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002) September 24 - 27, 2002 Oregon Convention Center Portland, OR
Pages:	2423 - 2433
Cite this article:	Grejner-Brzezinska, Dorota, Toth, Charles, "Modern Remote Sensing Techniques Supporting Traffic Flow Estimates," Proceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), Portland, OR, September 2002, pp. 2423-2433.
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