Modeling the pedestrian behavior at conflicts with vehicles in multi-lane roundabouts (a cellular automata approach)

Maziyar Layegh, Babak Mirbaha and Amir Abbas Rassafi

Physica A: Statistical Mechanics and its Applications, 2020, vol. 556, issue C

Abstract: This paper discusses the conflicts between vehicle flows and crossing pedestrians at multi-lane roundabout. The conflicts between pedestrians and vehicle in recent years had been of great importance and attempts have been made for analyzing this conflict in different urban street segments such as midblock and signalized intersections. In addition, roundabouts were less emphasized in the related literature and the type of conflicts is quite different due to specific pattern of movements of vehicles. The present study aimed to analyze the pedestrian behavior pattern in an urban multi-lane roundabout. The required data were collected using the video images, along with the trajectory of 89 pedestrian movements. The cellular automata modeling was used to analyze the time and space of the possible conflicts between pedestrians and vehicles. Then, time-to-collision (TTC) and Post-Encroachment Time (PET), as two surrogate safety measures, were used to define the possible conflicts between pedestrian and vehicles. In addition, binary logit models were used for modeling the choice behavior of pedestrians encountering conflicts in the roundabout. The results suggested that middle-aged/elderly pedestrians compared to the teenager/young people are 7% less prone to conflict with vehicles when crossing the roundabout. In addition, the likelihood of conflicts reduced by 26% and 8% when the pedestrians and vehicles had lower speed, respectively. During the possible conflicts, pedestrians selected adjacent cells when the front cells are full, or stay in their place. Otherwise, there is the desire to select the front cells under different conditions. The results can be used to assess the safety of pedestrian in the multi-lane roundabouts and play a significant role in improve pedestrian safety and having better understanding of pedestrians’ behaviors in roundabouts.

Keywords: Multi-lane roundabout; Pedestrian safety; Pedestrian–vehicle conflict; Cellular automata; Surrogate safety measures (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0378437120304374
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:556:y:2020:i:c:s0378437120304374

DOI: 10.1016/j.physa.2020.124843

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().