Traffic flow behavior at a single lane roundabout as compared to traffic circle

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

doi:10.1016/j.physleta.2014.09.001

Cited by 32 publications

(12 citation statements)

References 21 publications

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“…This is in good agreement with results obtained in several previous studies. [9][10][11][12] In the following, we focus our study on car accidents probability P ac . Figure 5(a) illustrates the probability P ac as a function of the injecting rate 1 for several values of 2 .…”

Section: Resultsmentioning

confidence: 99%

“…This is because when the circumference is shorter, the roundabout operates more optimally. [9][10][11][12] This means that vehicles can enter the roundabout easily which provokes an increase in the density in the rotary and the con°ict at the entrance site. Indeed, the large size is safer than short one even if it decreases the performance of the roundabout.…”

Section: Resultsmentioning

confidence: 99%

“…Indeed, it has extensively studied with di®erent models. [9][10][11][12][13][14] Fouladvand et al 9 studied the waiting time of tra±c caused by a roundabout on both framework of CA and car-following models. Ding-Wei Huang 10 has investigated analytically and numerically the tra±c dynamics in a roundabout in the framework of CA model; Wang and Ruskin 11 propose a CA model with Multi-stream Minimum Acceptable Space (MMAS) to examine unsignalized multi-lane urban roundabout.…”

Section: Introductionmentioning

confidence: 99%

“…Ding-Wei Huang 10 has investigated analytically and numerically the tra±c dynamics in a roundabout in the framework of CA model; Wang and Ruskin 11 propose a CA model with Multi-stream Minimum Acceptable Space (MMAS) to examine unsignalized multi-lane urban roundabout. Lakouari et al 12 studied the characteristics of the tra±c°ow at single-lane roundabout as well as tra±c circle using a CA model. These works have revealed that as the interactions between roadways and cars increase, the complexity of tra±c°ow increases correspondingly.…”

Section: Introductionmentioning

confidence: 99%

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Simulation study of traffic car accidents at a single lane roundabout

Echab

Lakouari

Ez‐Zahraouy

et al. 2016

Int. J. Mod. Phys. C

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In this paper, using the Nagel-Schreckenberg model, we numerically investigate the probability P ac of entering/circulating car accidents to occur at single-lane roundabout under the expanded open boundary. The roundabout consists of N on-ramps (respectively, o®-ramps). The boundary is controlled by the injecting rates 1 ; 2 and the extracting rate . 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 P exit are reliable to improve safety and reduce accidents. However, the usage of indicator, the increase of and/or N provokes an increase of car accident probability.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Simulation study of traffic car accidents at a single lane roundabout

Echab

Lakouari

Ez‐Zahraouy

et al. 2016

Int. J. Mod. Phys. C

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“…A number of publications have addressed single-lane roundabout modelling [66][67][68]. The topics studied have included study road traffic dynamics in roundabouts [69], and the study of probability of road accidents [70,71].…”

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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