Comparing the Performance of Unconventional Median U-turn Intersections and Signalized Intersections: A Simulation Study.

Elrawy Shahdah, Usama; Elshabrawy, M.; Elbadawy, S.; Gabr, A.; Azam, A.

doi:10.21608/bfemu.2015.173215

Comparing the Performance of Unconventional Median U-turn Intersections and Signalized Intersections: A Simulation Study.

Document Type : Research Studies

Authors

¹ Traffic engineering, traffic safety, urban transportation planning , Transportation Engineering , Mansoura University

² Professor emeritus., Public Works Engineering Department., Faculty of Engineering., El-Mansoura University., c., Egypt.

³ Associate Professo.r, Public Works Engineering Department, Faculty of Engineering, Mansoura University Mansoura, Egypt 35516

⁴ Assistant Professor., Public Works Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

10.21608/bfemu.2015.173215

Abstract

The Majority of intersections in Mansoura City are not controlled. The unconventional median U-turn (MUT) intersection design is the dominant design in Mansoura. In MUTs, right-turn movements are allowed for all approaches, but through movements are allowed only for the main street traffic. For left-turn in both the major and the minor streets and for through movements for the minor street traffic, vehicles must go through the U-turns in the median to complete their movement. For example, through movements on the minor street have to turn-right first into the main street then make a U-turn into the main street before making a right-turn into the minor street to continue to their destination. This paper presents the results of a simulation study for comparing the performance of the urban non-stranded 4-leg intersections with the signalized intersections. The VISSIM microscopic traffic simulation model was used in this analysis. The average delay per vehicle was used as the main measure of performance of the different intersections design with different traffic volumes.

Keywords