An Action to Traffic Accident Reduction by AHS

In Japan, although conventional preventive measures of accidents and pre-crash measures of accidents have been deployed intensively, the accident number is so far still at a high level. The authors have been developing AHS measures which prevent accidents through cooperation between roadside equipments and on-board units for providing information to drivers in real time. A social testing of a forward obstacle information provision service was conducted. The system decreased dangerous situations such as close calls, and reduced accidents such as rear-end collision or side wall collisions. This paper reports the result of the social testing.