A new approach for evaluating traffic safety performance of urban regions- case study: 22 districts of Tehran municipality

Articles in Press

Document Type : Original Article

Authors

1 School of Civil Engineering

2 Tehran Urban Research and Planning Center

3 Civil Engineering, Faculty of Civil Engineering, Azad University, North Tehran Branch, Tehran, Iran

10.22034/tri.2023.387423.3134

Abstract

Providing a comprehensive view on safety level of Tehran’s districts is necessary to identify performances and policies that accelerate the safety improvement process. Essential evaluations will help officials and decision makers to be informed the weaknesses and strengths of their performances in improving traffic safety compared to other areas and to modify their future policies by identifying the existing potentials. If a decision is made only based on fluctuations and the number of accidents or the number of fatal accidents in each district, the decision will not be true It is because of the influence of some independent variables on the safety of the districts, such as differences in the population and area amount of the districts. On the other hand, considering the difference in the equipment and facilities of the districts, such as emergency equipment, the number of security cameras and the amount of budget they had on previous year, and such cases, this decision will be far from justice. The purpose of this paper is to find a pattern and a method to compare the traffic safety of urban areas and make a relative and fair comparison considering all the conditions. To this aim, 22 districts of Tehran municipality have been used as a case study. In the first step, the parameters for evaluating the traffic safety performance at the regional level have been identified. Then, the framework of risk, exposure, and capacity and capability was used to evaluate the traffic safety performance of the regions, and finally, the traffic safety in the 22 districts of Tehran municipality was evaluated using the data envelopment analysis (DEA) method. The results of the study showed that among the 22 regions, region 22 had the best performance and region 19 had the worst performance in terms of traffic safety.

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Main Subjects

Journal of Transportation Research

Articles in Press, Accepted Manuscript
Available Online from 24 April 2023

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