Project INVAID II aimed at evaluating a MOTORWAY aid (Automatic Incident Detection) system based on computer vision technology. The global results obtained in field trials in Antwerp, Lyon and Madrid are presented. Evaluation was focused on the intrinsic performance of the system, integrability, acceptance and cost. Indicators are: detection and false alarm rates, time of detection and false alarm frequency. Sensitivity analyses against external parameters were also performed. Global results show 100% DR in congestion, 83% DR in flow condition and very low FAR. Integrability and acceptance were judged good while cost is reasonable. (A)
Abstract