Traffic safety analysis on highways by using macroscopic transportation modeling techniques

In this study, traffic safety analyzes were carried out by using macroscopic transportation modeling techniques. For this purpose, the accident reports obtained from Sakarya Police Department were analyzed by using Visum Safety program which is a transportation planning program. The coordinates of the traffic accidents were transffered into Visum Safety program and the high accident potential spots were defined as the accident black spots. The accients at these black spots are categorized according to the accident formation, road condition, and weather condition and the driver educational status. According to the analyses, the most common accidents occurred in the form of a pedestrian collision. The effect of the educational situation and the lack of sufficient traffic experience were observed and determined on the accidents. Also, it was found that the drivers are more careful during the bad weather conditions than the good weather conditions.