This work describes a new approach to determine the current travel times on freeways based on detection and re-identification of Bluetooth devices onboard of vehicles using stationary roadside detection technology. The approach also aims at using this information for traffic state determination of a whole freeway network targeting at a fast and reliable dynamic net control. Based on a six-year experience in a test bed in Northern Bavaria with hundreds of millions of single detections, the technology and the developed data validation algorithms show their feasibility in practical use, especially in areas with low density of stationary detectors like inductive loops.     «

This work describes a new approach to determine the current travel times on freeways based on detection and re-identification of Bluetooth devices onboard of vehicles using stationary roadside detection technology. The approach also aims at using this information for traffic state determination of a whole freeway network targeting at a fast and reliable dynamic net control. Based on a six-year experience in a test bed in Northern Bavaria with hundreds of millions of single detections, the tech...     »