Communications - Scientific Letters of the University of Zilina 2026, 28(1):D13-D26 | DOI: 10.26552/com.C.2026.004

Influence of Traffic Flow Parameters on the Delay Duration at Signalized Intersections

Taras Postranskyy ORCID...*, Mykola Boikiv ORCID..., Maksym Afonin ORCID..., Ihor Mohyla ORCID...
Department of Transport Technologies, Lviv Polytechnic National University, Lviv, Ukraine

In this study is examined the influence of traffic flow parameters on delay duration at signalized intersections of urban multi-lane streets. The findings show that traffic composition strongly affects delays at low volumes, while its influence decreases as total volume grows. These results highlight the need to account for traffic composition, not only volume, when optimizing the signal timing and managing flows. The novelty of the study lies in modelling delay as a joint function of traffic volume and traffic flow composition, where the share of passenger cars is varied independently, rather than through the generalized passenger car unit-based growth, enabling a more accurate assessment of delay formation under heterogeneous traffic conditions.

Keywords: traffic volume, microsimulation, traffic delay, signalized intersection
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The authors received no financial support for the research, authorship and/or publication of this article.

Conflicts of interest:

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Received: September 1, 2025; Accepted: November 21, 2025; Prepublished online: December 16, 2025; Published: January 26, 2026  Show citation

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Postranskyy, T., Boikiv, M., Afonin, M., & Mohyla, I. (2026). Influence of Traffic Flow Parameters on the Delay Duration at Signalized Intersections. Communications - Scientific Letters of the University of Zilina, 28(1), D13-26. doi: 10.26552/com.C.2026.004
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