Abstract
Sun glare adversely affects traffic conditions, so traffic safety measures for vehicle against sun glare have been implemented. But quantitative analysis by vehicle type of the influence of sun glare on traffic accident occurrence has not been carried out. Using the traffic accident data in Chiba Prefecture which include accident latitude and longitude, vehicle travel direction, we determined how much the sun glare affects traffic accident occurrence. So drivers of first car concerned were adversely affected by sun glare, but degree of affection by sun glare depends on each vehicle types.
