Prioritization Of Geometric and Traffic Factors Affecting Accidents at Entry Points to Cities Using Analytic Hierarchy Process (AHP)

Document Type : Original Article

Authors
Hassan Khaksar 1
Reza Roshani 2
Shahin Hassani 3
1 Professor, Civil Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran.
2 M.Sc., Grad., Civil Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran.
3 M.Sc., Grad.,Civil Engineering, North Tehran Branch, Islamic Azad University, Tehran, Iran.
10.22034/road.2026.556781.2447
Abstract
So far, in road safety studies, less attention has been paid to the entrances of cities. These types of roads have conditions between urban and suburban roads. The purpose of this study is to identify traffic and geometric factors affecting accidents at the entrances to cities. In order to identify the factors affecting accidents in this type of road, the Analytic Hierarchy Process (AHP) has been used. In this regard, geometric and traffic parameters affecting accidents have been identified by experts and prepared in the form of a questionnaire. Then, 32 questionnaires were prepared and completed by specialized academic elites, including professors and students, employees of road and road transport organizations, and police experts. The results of the hierarchical analysis method showed that, in general, 7 parameters: number of local accesses, percentage of drivers at unauthorized speed, longitudinal density of commercial and industrial uses along the route, number of detours, width of roadway, intrusion speed, and adequate lighting at night were identified as the most effective factors in causing accidents in these areas. These results can be used to predict the factors affecting accidents in different parts of cities and to investigate the possibility of improving the safety of these areas by modifying the effective parameters.
Keywords
Urban Entrances
Road Safety
Hierarchical Analysis Process (AHP)
Factors Affecting Accidents
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