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

Authors

Usama Elrawy Shahdah, Traffic engineering, traffic safety, urban transportation planning , Transportation Engineering , Mansoura UniversityFollow
M. Elshabrawy, Professor emeritus., Public Works Engineering Department., Faculty of Engineering., El-Mansoura University., c., Egypt.
S. Elbadawy, Associate Professo.r, Public Works Engineering Department, Faculty of Engineering, Mansoura University Mansoura, Egypt 35516
A. Gabr, Assistant Professor., Public Works Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.
A. Azam, Assistant Professor., Public Works Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt.

Corresponding Author

Elrawy Shahdah, Usama

Subject Area

Civil and Environmental Engineering

Article Type

Original Study

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

Median U-turn intersections; Signalized intersections; Average delay; Queue length; Traffic microsimulation; VISSIM

Recommended Citation

Elrawy Shahdah, Usama; Elshabrawy, M.; Elbadawy, S.; Gabr, A.; and Azam, A. (2015) "Comparing the Performance of Unconventional Median U-turn Intersections and Signalized Intersections: A Simulation Study.," Mansoura Engineering Journal: Vol. 40 : Iss. 6 , Article 12.
Available at: https://doi.org/10.21608/bfemu.2015.173215