Traffic states induced by slowdown sections on two-lane highway

Hanaura, Hirotoshi; Masukura, Shuichi; Nagatani, Takashi

doi:10.1016/j.physa.2008.12.011

Cited by 12 publications

(7 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They suggested that the use of the feedback signal can improve the traffic situation. Hanaura et al 19 derived the fundamental diagrams of a two-lane highway with a few slowdown sections. They found the dependence of jam lengths and the density numerically and analytically.…”

Section: Introductionmentioning

confidence: 99%

Analyzing the effect of fixed and moving bottlenecks on traffic flow and car accidents in a two-lane cellular automaton model

Laarej

Karakhi²,

Lakouari

et al. 2023

Preprint

View full text Add to dashboard Cite

In this paper, we studied a two-lane cellular automaton model that considers both types of bottlenecks (i.e., moving and fixed). The slow-moving vehicles are considered as moving bottlenecks in our model. The fundamental diagram and the spacetime configuration were derived. The effect of the bottleneck induces a qualitative and quantitative change in the fundamental diagram of both lanes. Also, the system depends strongly on the length of the fixed bottleneck. Hence, for extremely low densities, vehicles are self-organized into two lanes. The probability of vehicle accidents is computed. It is found that the rear-end and lane-changing collision probabilities were reduced as the length of the fixed bottleneck increased. Furthermore, at low densities the fixed bottleneck has even less impact on the occurrence of lane-changing collisions. Moreover, the revised lane-changing rules reduces the flux at low and moderate density regions and augments it at large densities in the lane where there is a bottleneck. The results also indicate that the revised lane-changing rules maximizes the rear-end collisions and minimizes the unsafe lane changing collisions.

show abstract

Section: Introductionmentioning

confidence: 99%

Analyzing the effect of fixed and moving bottlenecks on traffic flow and car accidents in a two-lane cellular automaton model

Laarej

Karakhi²,

Lakouari

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Ou and Tang [27] proposed an extended macro traffic flow with a moving bottleneck model to study the effects of a moving bottleneck on the evolution and propagation of traffic flow under uniform flow and a small perturbation. Hanaura et al [28] derived the fundamental diagrams of a two-lane highway with a few slowdown sections. Significantly, they elucidated the relationship between traffic density and jam lengths, employing both analytical methods and traffic simulations to provide a detailed exploration of this dependency.…”

Section: Introductionmentioning

confidence: 99%

Analyzing the effect of fixed and moving bottlenecks on traffic flow and car accidents in a two-lane cellular automaton model

Laarej,

Lakouari,

Karakhi

et al. 2023

J Appl Eng Science

View full text Add to dashboard Cite

Traffic bottleneck is considered as one of the major causes of the disturbance in traffic flow. The understanding the dynamics between vehicles and bottlenecks is crucial for enhancing traffic flow and ensuring road safety. This research examines a two-lane traffic cellular automaton model to understand the effects of static (e.g., lane reductions) and dynamic (e.g., slow-moving vehicles) bottlenecks on traffic flow and road safety. We found that at low vehicle densities, slow vehicles gravitate towards the open lane, while faster vehicles switch lanes to overtake, returning to their original lane post-bottleneck. At high densities, traffic flow near static bottlenecks ceases, independent of bottleneck length. Safety analysis shows that extended static bottlenecks reduce rear-end collision risk due to fewer lane changes and increased vehicle stationarity. At maximum density, gridlock nullifies the chance of such collisions. Our findings provide actionable insights for traffic planning focused on bottleneck management to improve road safety.

show abstract

“…Kerner and Klenov [31] studied the critical speed of a moving bottleneck at which traffic breakdown occurs. Masukura et al [32] studied the effect of a slow vehicle on traffic flow. However, several more complex traffic phenomena induced by moving bottlenecks have not been sufficiently studied by microscopic models.…”

Section: Introductionmentioning

confidence: 99%

The effect of moving bottlenecks on a two-lane traffic flow

Yuan¹,

Chen²,

Peng³

2013

Chinese Phys. B

View full text Add to dashboard Cite

In this paper, we study the effect of moving bottlenecks on traffic flow. The full velocity difference (FVD) model is extended to the traffic flow on a two-lane highway, and new lane changing rule is proposed to reproduce the vehicular lane changing behavior. Using this model, we derive the fundamental current-density diagrams for the traffic flow with the effect of moving bottleneck. Moreover, typical time-space diagram for a two-lane highway shows the formation and dissipation of a moving bottleneck. Results demonstrate that the effect of moving bottleneck enlarges with the increase of traffic density, but the effect can be reduced by increasing the maximum velocity of heavy truck. The effects of multiple moving bottlenecks under different conditions are investigated. The effect becomes more remarkable when the coupling effect of multiple moving bottlenecks occurs.

show abstract

Traffic states induced by slowdown sections on two-lane highway

Cited by 12 publications

References 39 publications

Analyzing the effect of fixed and moving bottlenecks on traffic flow and car accidents in a two-lane cellular automaton model

Analyzing the effect of fixed and moving bottlenecks on traffic flow and car accidents in a two-lane cellular automaton model

Analyzing the effect of fixed and moving bottlenecks on traffic flow and car accidents in a two-lane cellular automaton model

The effect of moving bottlenecks on a two-lane traffic flow

Contact Info

Product

Resources

About