A Lagrangian traffic flow model considering lane changing behavior: formulation and numerical implementation

According to different driving behavioral characteristics of bus drivers, a cellular automata traffic model considering the bus lane changing behavior with scheduling parameters is proposed in this paper. Traffic bottleneck problems caused by bus stops are simulated in multiple lanes roads with no-bay bus stations. With the mixed traffic flow composed of different bus arrival rate, flow-density graph, density distribution graph, and temporal-spatial graph are presented. Furthermore, the mixed traffic flow characteristics are analyzed. Numerical experiment results show that the proposed model can generate a variety of complicated realistic phenomena in the traffic system with bus stops and provide theoretical basis for better using of traffic flow model.

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Two-lane traffic flow model based on regular hexagonal cells with realistic lane changing behavior

Physica A Statistical Mechanics and its Applications ◽

10.1016/j.physa.2020.125220 ◽

2020 ◽

Vol 560 ◽

pp. 125220

Author(s):

Xue-Cheng Shang ◽

Xin-Gang Li ◽

Dong-Fan Xie ◽

Bin Jia ◽

Rui Jiang

Keyword(s):

Traffic Flow ◽

Flow Model ◽

Lane Changing ◽

Traffic Flow Model ◽

Model Based

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Effects of Car Accidents on Three-Lane Traffic Flow

Mathematical Problems in Engineering ◽

10.1155/2014/413852 ◽

2014 ◽

Vol 2014 ◽

pp. 1-11 ◽

Cited By ~ 3

Author(s):

Jianzhong Chen ◽

Zhiyuan Peng ◽

Yuan Fang

Keyword(s):

Numerical Simulations ◽

Traffic Flow ◽

Flow Model ◽

Velocity Difference ◽

Lane Changing ◽

Traffic Flow Model ◽

Traffic Jams ◽

Car Accidents ◽

Time Space ◽

Car Accident

A three-lane traffic flow model is proposed to investigate the effect of car accidents on the traffic flow. The model is an extension of the full velocity difference (FVD) model by taking into account the lane changing. The extended lane-changing rules are presented to model the lane-changing behaviour. The cases that the car accidents occupy the exterior or interior lane, the medium lane, and two lanes are studied by numerical simulations. The time-space diagrams and the current diagrams are presented, and the traffic jams are investigated. The results show that the car accident has a different effect on the traffic flow when it occupies different lanes. The car accidents have a more serious effect on the whole road when they occupy two lanes. The larger the density is, the greater the influence on the traffic flow becomes.

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Simulation study of traffic accidents on a three-lane highway

International Journal of Modern Physics C ◽

10.1142/s0129183115500278 ◽

2015 ◽

Vol 26 (03) ◽

pp. 1550027 ◽

Cited By ~ 1

Author(s):

Jau-Yang Chang ◽

Wun-Cing Lai

Keyword(s):

Traffic Flow ◽

Simulation Study ◽

Traffic Safety ◽

Traffic Accidents ◽

Flow Model ◽

Human Life ◽

Lane Changing ◽

Traffic Flow Model ◽

Vehicle Accidents ◽

Driving Behaviors

Unsuitable driving behaviors often lead to the occurrence of traffic accidents. To reduce accidents and to prolong human life, simulated investigations are highly desirable to evaluate the effect of traffic safety in terms of number of traffic accidents. In this paper, a three-lane traffic flow model is proposed to analyze the probability of the occurrence of traffic accidents on highway. We define appropriate driving rules for the forward moving and lane changing of the vehicles. Three types of vehicle accidents are designed to investigate the relationships between different driving behaviors and traffic accidents. We simulate four road driving strategies, and compute the traffic flow, velocity, lane-changing frequency and the probability of the occurrence of traffic accidents for different road driving strategies. According to the simulation and analysis, it is shown that the probability of the occurrence of traffic accidents can be reduced by using the specified road driving strategies. Additionally, we found that the occurrence of traffic accidents can be avoided when the slow vehicles are suitably constrained to move on a three-lane highway.

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Simulating Lane-changing Dynamics towards Lane-flow Equilibrium Based on Multi-lane First Order Traffic Flow Model

Transportation Research Procedia ◽

10.1016/j.trpro.2015.03.011 ◽

2015 ◽

Vol 6 ◽

pp. 128-143 ◽

Cited By ~ 2

Author(s):

Yasuhiro Shiomi ◽

Tomoki Taniguchi ◽

Nobuhiro Uno ◽

Hiroshi Shimamoto ◽

Toshiyuki Nakamura

Keyword(s):

Traffic Flow ◽

Flow Model ◽

Lane Changing ◽

Traffic Flow Model ◽

First Order ◽

Flow Equilibrium

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Lane-Changing Feedback Control for Efficient Lane Assignment at Motorway Bottlenecks

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/2625-03 ◽

2017 ◽

Vol 2625 (1) ◽

pp. 20-31 ◽

Cited By ~ 21

Author(s):

Claudio Roncoli ◽

Nikolaos Bekiaris-Liberis ◽

Markos Papageorgiou

Keyword(s):

Feedback Control ◽

Traffic Flow ◽

Control Strategy ◽

Communication Systems ◽

Flow Model ◽

Total Density ◽

Linear Quadratic ◽

Optimal Control Strategy ◽

Lane Changing ◽

Traffic Flow Model

A feedback control strategy is proposed for lane assignment at bottleneck locations. The strategy assumes that some vehicles equipped with vehicle automation and communication systems are capable of receiving and executing specific lane-changing orders or recommendations. From a previously proposed optimal control strategy based on a simplified multilane motorway traffic flow model and formulated as a linear quadratic regulator, a feedback control problem was designed. The aim was to maximize the throughput at bottleneck locations while distributing the total density at the bottleneck area over the lanes according to a given policy by optimal lane assignment of the vehicles upstream of the bottleneck. The feedback control decisions were based on real-time measurements of the traffic state and inflow. The proposed strategy was tested on a nonlinear first-order macroscopic multilane traffic flow model, which also accounted for the capacity drop phenomenon.

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