Evaluation and Ranking of Influential Factors in Road Accidents on the Roads of Central Baroosh Province Structure of Eequations (SEM)

Considering that the road factor along with the two factors of human and vehicle plays an important role in road accidents, so optimal and suitable road safety is improved through road geometric design, road surface structure (road pavement), and the installation of a variety of signs And road safety equipment will be important in reducing accidents and road accidents. Studies on the role of road accidents as the most important driving force in our country indicate that 75% of accidents occur in 20% of the total number of different paths, which, for various reasons, are included in the paths of the accident. . In other words, about 36,000 km out of a total of 180,000 km of roads in the country are affected by road accidents. In this research, the evaluation and ranking of the factors affecting road accidents in Markazi province were carried out using the equation structure (SEM) by preparing a questionnaire and a decision procedure Multidimensional Inventory (MCDM) of 80 factors involved in the ways of the central province. The results show that the index of road barrier obstructions in Friedman rank of 959/5 is of prime importance. It shows that most of the trails in this province are completely separate. The majority of crashes in the central provinces were due to lack of Enough to be seen. Direction Lighting Index 553/5 is ranked second. The construction quality index and geometric specifications and asphalt pavement are rated at 125/5 points in third place.