Determining the best interchange for Saturated Intersection with traffic lights (Case Study: Dizel Abad Intersection, Kermanshah, Iran)

  • Mohammadali Esfandiarifar Islamic Azad University, Zanjan Branch, Zanjan, Iran
  • Seyed Mahdi Sajjadi Civil Engineering Department, Islamic Azad University, Zanjan Branch, Zanjan, Iran
  • Seyyed Amir Hossein Beheshty Civil Engineering Department, Islamic Azad University, Zanjan Branch, Zanjan, Iran


One of the main problems of metropolitan cities in traffic topics is the Intersection with traffic light. One of the weaknesses of these intersections is the creation of long queues due to left-turn movements during the peak hours of daily traffic, which reduces speed. The flow of traffic as well as the level of service decline. Therefore, optimizing cross-sectional intersections in order to reduce the delay time and production of pollutants and fuel consumption is of great importance. The purpose of this study is to examine and compare the results of converting a level crossing (case study of Dizel Abad intersection of Kermanshah, Iran) to a interchange using the Aimsun software simulator. The scenarios used in this study include the present status of the intersection of the study, Cloverleaf Interchange, semi-directional interchange, U-turn Interchange and U-Turn Interchange with a specific right-turn path, The final results show that the best interchange among considered interchange will be semi-directional interchange so this interchange will reduce around 81% in travel time and 68% in travel speed.  


La descarga de datos todavía no está disponible.


Dehnad, H. and Nouri, A. (2012). Computer Application in Traffic Engineering, Mohammad Publishing House of Jihad University (Amir kabir University of Technology) Dec. 20.

Kazemi, A., Zooghi, H., Nayeri, F. D. and Khalilzadeh, M. R. (2016), Designing Nanoconversion Intersections in Urban Density, Fourteenth International Conference on Transport and Traffic Engineering, Tehran, Deputy Director and Traffic Management Organization.

Mahmoud S., Naser, Seyyed S. and Hassani S. (2008), Removal of left-turn movement at a signalized intersection using two neighboring fields, Eighth Iranian Conference on Transport and Traffic Engineering, Tehran, Transportation Organization Traffic and Traffic of Tehran, Deputy Director of Transportation and Traffic of Tehran Municipality.

Ortuzar, J.D.D. And Willumsen, L. (2001), Modeling Transport, John Wiley & Sons Ltd. Third edition.

Sajjadi, S. M.; Hosein, S. A., (2017), Highway alignment optimization by using cost and safety criteria, Technical gazette.

Simaron Engineering Company (2018), Available in:

Transport and traffic vice president, Kermanshah Municipality, (2016).

TSS-Transport Simulation System, Aimsun User’s Manual v6, January (2006).