Modelling a Vehicle - GPS System for Road Geometrical Characteristics Verification: A First Approach

P. D. Savvaidis, I. M. Ifadis and K. Lakakis

Abstract:	This paper describes the preliminary results of the employment of an experimental vehicle for recording road geometrical characteristics – mainly inclinations. The whole system was developed at the Laboratory of Geodesy, Department of Civil Engineering, Aristotle University of Thessaloniki. The abilities of the system come from a variety of L1/L2 GPS receivers, which are placed on a dual level system of rectangular frames, firmly attached on the vehicle. Differential kinematic measurement techniques were applied with the use of two reference L1/L2 GPS stations, one of them being the Continuous Geodetic Reference Station of the Laboratory of Geodesy. A 2 Km long road section with its geometrical characteristics known by classical accurate surveying methods was used for the experiment. The aim of this project was to develop a useful mathematical model that can describe the motions of the vehicle (including the GPS frames) in various vehicle speeds. In this way, a determination of the horizontal alignment, the super-elevations and the long section gradients of a road can be made.
Published in:	Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000) June 26 - 28, 2000 The Catamaran Resort Hotel San Diego, CA
Pages:	423 - 427
Cite this article:	Savvaidis, P. D., Ifadis, I. M., Lakakis, K., "Modelling a Vehicle - GPS System for Road Geometrical Characteristics Verification: A First Approach," Proceedings of the IAIN World Congress and the 56th Annual Meeting of The Institute of Navigation (2000), San Diego, CA, June 2000, pp. 423-427.
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