Application of Integrated Fuzzy-AHP approach in Prioritization of Urban Intersections Improvement for Increasing the Pedestrian Safety

Nearly 1.35 million people die each year due to traffic crashes, 50% of which belong to vulnerable users (pedestrians, cyclists and motorcyclists). Considering the importance of pedestrian safety at intersections that are an important part of the urban pedestrian network, it is necessary to take steps to increase pedestrian safety. The purpose of this study is to present a prioritization for the modification of hazardous intersections based on factors affecting pedestrian safety at 25 important intersections of 11th district of Tehran. The total number of crashes in these 25 intersections and their 50-meter buffer over the years 2017-2019 is more than 25% of total crashes. More than 40% of the fatalities are pedestrians and these modifications lead to improve safety. In this regard, prioritizing hazardous segment methods such as average crash frequency, crash rates, EPDO and Fuzzy-AHP method were used. A questionnaire with 9-degree fuzzy spectra was used to identify the indices and prioritization criteria for paired analysis. Results show that prioritizing hazardous intersections influenced by the type of indicators and indices used in evaluating intersection safety. Finally, a comprehensive plan of prioritizing hazardous intersections presented based on pedestrian safety and land use indices; accordingly, the Molavi-Valiasr intersection has the highest priority for reform.