Effectiveness Evaluation on Traffic Accident Black Spot in Mountain Highway with Sharp Radius of Horizontal Curve

Abstract:

Traffic safety on accident black spot was studied by driving experiment focusing on dynamic sight angle, acceleration, corneringratio and drivers’ heart rate.The results indicate that visual performance and driving security are enhanced,psychological and physical burden suffered by the drivers alleviated,and the traffic accident restrained.Therefore, improvement measure that makes superelevation slope different on one crosssection proves effective.