Evaluating The Operational Performance of Signalized Intersections Involving U-turns in Aswan City, Egypt

Abstract

This research evaluates the operational performance of Signalized Intersections involving U-turns (SIU) in Aswan city, Egypt. Furthermore, it investigates the impacts of U-turns on the capacity of an SIU, exploring the key factors influencing the performance of an SIU. To achieve those objectives, the research methodology depends on onsite video observations and field measurements. In addition, to examine the efficiency of the proposed strategies, the microscopic simulation software PTV-VISSIM has been used. The research findings revealed the adverse effects of U-turns on the performance of an SIU. This study recommends the segregation of the U-turns from the signalized intersections. It also emphasizes the urgent necessity of the overall readjustment of traffic controls signal times based on a traffic demand analysis.