Relationship between Traffic Accident and Sight Distance to Signal at Intersection close to Bridge with Downhill

Abstract

This study aims at examining the relationship between traffic accidents and the probability that the sight distances to traffic signals are inadequate at signalized intersections with downhill. The signalized intersections with downhill are selected firstly as less effective sites of the road safety measures by a preliminary statistical analysis based on traffic accident data at 92 high-accident sites in Hiroshima. It is turned out that the probability strongly correlates with the traffic accidents.