DOMINANT GROUPS OF FACTORS INFLUENCING THE OCCURRENCE OF DIFFERENT TYPES OF ACCIDENTS ACCORDING TO THE SEVERITY OF THE CONSEQUENCES WITHIN DIFFERENT TYPES OF ACCIDENTS IN RAIN CONDITIONS

The condition of the road surface is one of the most important factors influencing the occurrence of traffic accidents, especially since it changes under the influence of various atmospheric factors. Among the most important atmospheric factors are temperature, humidity and precipitation. The risk of being involved in an accident change with the change (deterioration) of weather conditions. Factors within the H-V-R-E system (human, vehicle, road and environment) contribute differently to the increase/decrease in the risk of traffic accidents in bad weather conditions. This paper analyses groups of influencing factors associated with the occurrence of different types of accidents according to the severity of consequences within different types of traffic accidents that occurred during the rainy season. In the first step, an analysis of the most common types of traffic accidents was conducted, after which the three most common types of SN (traffic accident) were identified. Then, ordinal logistic regression was applied, in which the dependent variable was the type of accident according to the severity of the consequence, previously categorized depending on the severity of the SN consequence, while the independent variable was the groups of influencing factors. As a result of the applied statistical method, the dominant groups of influencing factors UF_G8 (vehicle malfunction), UF_G9 (impact of the road and road environment), etc. were identified.