Comparison of optimal signal plans by synchro & TRANSYT-7F using PARAMICS-A case study

Nedal T. Ratrout, Imran Reza*

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations


TRANSYT-7F and Synchro are two of the most extensively used signal timing optimization softwares in Saudi Arabia. Each of them has its inbuilt objective function to optimize signal plan for intersections, which is different from each other. In this paper, the performance of the optimal signal timing plans developed by TRANSYT-7F and Synchro is compared using the microsimulation software PARAMICS. An urban arterial with three intersections and moderately high traffic in Dhahran, Saudi Arabia is studied. Comparison of the optimized plans is done on the basis of queue length and average delay from the simulated results of PARAMICS. The study showed that the optimized plan by TRANSYT-7F gave better results than the plan by Synchro in terms of queue length and average delay. The study also showed a trend of better optimized signal performance when the timing plans are simulated in their respective simulation model.

Original languageEnglish
Pages (from-to)372-379
Number of pages8
JournalProcedia Computer Science
StatePublished - 2014

Bibliographical note

Funding Information:
The authors wish to acknowledge the financial support provided by the Deanship of Scientific Research (DSR) of King Fahd University of Petroleum & Minerals, Saudi Arabia in carrying out this study under the project titled “PARAMICS Model Development for Local Traffic Conditions in Saudi Arabia” (Project No. IN111047).


  • Optimal signal plan
  • Queue length
  • Synchro

ASJC Scopus subject areas

  • General Computer Science


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