Development of vision sensor for cooperative vehicle-highway systems

This paper describes a development of vision sensor that can detect shockwave propagation that is one of main factors of accidents in highway traffic flow. In addition, realization of a driver assistance system that informs arrival of such shockwave to drivers by the vision sensors is shown. To evaluate the reliability of the system, both recall rate and false rate of the system is investigated by sensing results of the sensors. As a result, it is shown that the detection of shockwaves and judgment of warning in the system should be decided in downstream sensors to minimalize these rates.