Kinematic GPS calibration of roadside systems used for local metrology of vehicles trajectories in curve

Metrology of vehicles trajectories has several applications in the field of road safety, particularly in dangerous curves. Actually, it is of great interesting to observe the trajectory of vehicles with the aim of designing a real time driver warning device in these areas. This paper addresses the calibration of various cooperative electromagnetic, infrared, ultrasound systems placed along the road with the objective of position and speed estimation. Kinematic GPS (in post-processing) has been extensively used for this experiment. It enables the positioning of a mobile with an accuracy of a couple of centimetres, relatively to a static reference placed at a known point in the vicinity of the surveyed road (A). For the covering abstract of the conference see ITRD E212343.