2020 Volume 51 Issue 5 Pages 938-943
A lot of four-wheeled vehicle accidents were caused by lane departure in hilly and mountainous area. Therefore, it is considered that road alignment such as curvature of road and gradient of road etc. affects these accidents. This paper studied to make 3D model for accident location using SfM method with photos of the location, and analyzed the road alignment. Furthermore, authors extracted hazard factors of traffic accidents from the model, and considered the evaluation model for accident risk in hilly and mountainous area. The accident risk is calculated by the rate of vehicle velocity divided by the side slip limitation speed. Three actual accident locations were analyzed using this method. In results, it was found that these locations had 0.7 and more accident risk rate, and this method can evaluate the accident risk in hilly and mountainous area.
