Detection and Evaluation of Road Defects Effective in Accidents: A Case Study of Tehran City

 Detection and Evaluation of Road Defects Effective in Accidents: A Case Study of Tehran City Mohammadreza Mehmandar 1, Mohammad Ariana 2, Ehsan Khalili 3 *, Tofigh Mobaderi 4 1 Faculty of Traffic Police, Amin Police University, Tehran, Iran 2 Tehran Traffic Police, Tehran, Iran 3 Department of Control, School of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran 4 Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran Abstract Objectives: Research on the factors effective in driving accidents has attracted the attention of traffic researchers in recent decades. Investigating these factors can eliminate the substantial causes of accidents. The main objective of the current study was to detect and evaluate the effective road defects in accidents in metropolitan Tehran. Methods: This practical - developmental study (in terms of nature and procedure) was conducted in Tehran city. The data on road defects and accidents were obtained from the Tehran traffic police and used in this study. The data had been recorded in the past three years and extracted from 2739 records. The technique for order of preference by similarity to ideal solution (TOPSIS) was used for data analysis and the analytic hierarchy process (AHP) was employed to develop weight matrices. Results: In this study, the road defects effective in property damage only (PDO) and injury/fatal crashes were evaluated. The results of AHP showed narrow roads and defects in horizontal/vertical traffic signs were the most effective causes of driving accidents. Conclusions: In this study, districts 23 and 7 had the worst situations and district 10 had the best situation among the Tehran regions in terms of PDO and injury/fatal crashes. Keywords: Traffic Injuries; Death; Accident   Please cite this article as follows: Mehmandar Mr; Ariana M; Khalili E; Mobaderi T, Identification and Evaluation of Road Effective Defect Parameters in Accidents (Case Study: Tehran City), Hakim Health Sys Res 2019; 21(4): 290- 299.   *Corresponding Author: M.Sc., Department of Control, School of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran. Tel: +98-9127399655, Email: [email protected]