Simulation study of traffic car accidents at a single lane roundabout

Echab, H.; Lakouari, N.; Ez‐Zahraouy, H.; Benyoussef, A.

doi:10.1142/s0129183116500091

Cited by 12 publications

(9 citation statements)

References 18 publications

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“…The topics studied have included study road traffic dynamics in roundabouts [69], and the study of probability of road accidents [70,71]. The current publication focuses on developing a model for multi-lane roundabouts.…”

Section: Roundabout Cellular Automaton (Ca) Modelsmentioning

confidence: 99%

Cellular Automaton to Study the Impact of Changes in Traffic Rules in a Roundabout: A Preliminary Approach

Małecki

Wątróbski

2017

Applied Sciences

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Featured Application: The current article proposes traffic modelling in a roundabout on the basis of cellular automata. It also considers roundabout traffic reorganisation in order to increase roundabout capacity. The article also presents an analysis on the impacts of pedestrian traffic and on distances between vehicles. An analysis focussing on multi-lane roundabouts is also provided. Abstract:The current article presents a roundabout traffic model based on cellular automata for computer simulation. The model takes into account various sizes of roundabouts, as well as various types and maximum speeds of vehicles. A realistic vehicle braking phase is presented which is adjusted to the kind of vehicle and weather conditions. It also analyses roundabout traffic options including where the various rules for entering and exiting a roundabout apply. Traffic rules are contained in respective traffic scenarios. The simulation results indicate that there is significant scope for roundabout traffic reorganisation, with a mind to increasing roundabout capacity.

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Section: Roundabout Cellular Automaton (Ca) Modelsmentioning

confidence: 99%

Cellular Automaton to Study the Impact of Changes in Traffic Rules in a Roundabout: A Preliminary Approach

Małecki

Wątróbski

2017

Applied Sciences

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“…Based on the observation of different transitions, including the transition between free-flowing and gridlock and bottleneck and gridlock, the author has identified that the gridlock can be taken as an extreme limit of bottleneck. Cellular automata models have been also used to study the probability of car accidents for various traffic scenarios [13][14][15]. The first CA model including dangerous situations (accident) have been proposed by Boccara et al [13].…”

Section: Introductionmentioning

confidence: 99%

“…The author discusses the effect of these conditions on the probability of traffic accidents. In [15], the authors have studied the probability of entering/circulating car accidents to occur at single-lane roundabout when the incoming vehicles ignore the priority rules.…”

Section: Introductionmentioning

confidence: 99%

A cellular automata model for urban traffic with multiple roundabouts

Regragui

Moussa

2018

Chinese Journal of Physics

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Urban transportation with multiple roundabouts is facing significant challenges such as traffic congestion, gridlock and traffic accidents. In order to understand these behaviors, we propose a two-dimensional cellular automata (CA) model, where all streets are two-way, with one lane in each direction. To allow the turning movement, a roundabout is designed for each intersection where four roads meet. The distance between each pair of roundabouts is configured with the parameter K while the turning behavior of drivers is modeled by a parameter γ. To study the impact of these different parameters on the urban traffic, several traffic metrics are considered such as traffic flow, average velocity, accident probability and waiting time at the entrance of roundabout. Our simulation results show that the urban traffic is in free flow state when the vehicle's density is low enough. However, when the density exceeds a critical density ρ c , the urban traffic will be in gridlock state whenever γ is nonzero. In the case where γ = 0, the urban traffic presents a phase transition between free flow and congested state. Furthermore, detailed analysis of the traffic metrics shows that the model parameters (γ, K) have a significant effects on urban traffic dynamics.

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“…Many 3 observed traffic phenomenon have been successfully described by computer simulation with various models, e.g. car 4 following, Fluid-dynamical method, and Cellular automaton (CA) [1][2][3][4][5][6][7][8][9][10][11][12][13]. This later has been adopted extremely and well 5 received as a good tool to study the traffic and/or pedestrian dynamics [8][9][10][11][12]14].…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, many studies have 7 examined the pedestrian flow and its effect on vehicular traffic [15][16][17][18][19][20][21][22][23][24]. Feng et al [15] proposed a cellular automata model 8 to evaluate walkers' facilities before its implementation, Zhuang and Wu [16] developed a model of pedestrian crossing 9 paths at unmarked roadways to better understand pedestrian behaviors, Yannis et al [17] studied walkers' gap acceptance 10 for mid-block road crossing in urban areas, Xie et al [18] investigated the characteristics of the traffic flow on a road with 11 a signalized crosswalk in the framework of CA model, Zhang et al [19] proposed a cellular automata model to study the Furthermore, we analyze how the location of the crosswalk and the driver cooperative behavior can influence the dynamic 3 characteristics of pedestrian and vehicle flux. The paper is organized as follows.…”

Section: Introductionmentioning

confidence: 99%