Simulation study of traffic car accidents at a single lane roundabout

H. Echab, N. Lakouari, H. Ez-Zahraouy and A. Benyoussef
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H. Echab: Laboratoire de Magnétisme et de Physique des Hautes Energies (URAC 12), Département de Physique, B.P. 1014, Faculté des Sciences, Université Mohammed V Rabat, Morocco
N. Lakouari: Laboratoire de Magnétisme et de Physique des Hautes Energies (URAC 12), Département de Physique, B.P. 1014, Faculté des Sciences, Université Mohammed V Rabat, Morocco
H. Ez-Zahraouy: Laboratoire de Magnétisme et de Physique des Hautes Energies (URAC 12), Département de Physique, B.P. 1014, Faculté des Sciences, Université Mohammed V Rabat, Morocco
A. Benyoussef: Laboratoire de Magnétisme et de Physique des Hautes Energies (URAC 12), Département de Physique, B.P. 1014, Faculté des Sciences, Université Mohammed V Rabat, Morocco

International Journal of Modern Physics C (IJMPC), 2016, vol. 27, issue 01, 1-10

Abstract: In this paper, using the Nagel-Schreckenberg model, we numerically investigate the probability Pac of entering/circulating car accidents to occur at single-lane roundabout under the expanded open boundary. The roundabout consists of N on-ramps (respectively, off-ramps). The boundary is controlled by the injecting rates α1,α2 and the extracting rate β. The simulation results show that, depending on the injecting rates, the car accidents are more likely to happen when the capacity of the rotary is set to its maximum. Moreover, we found that the large values of rotary size L and the probability of preferential Pexit are reliable to improve safety and reduce accidents. However, the usage of indicator, the increase of β and/or N provokes an increase of car accident probability.

Keywords: Cellular automata; roundabout; car accidents (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1142/S0129183116500091

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