Journal ArticleDOI
A new car-following model accounting for varying road condition
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In this paper, a car-following model with consideration of varying road condition based on the empirical data is developed, which explores the effects of road condition on uniform flow from analytical and numerical perspectives.Abstract:
In this paper, we develop a new car-following model with consideration of varying road condition based on the empirical data. Firstly, we explore the effects of road condition on uniform flow from analytical and numerical perspectives. The results indicate that road condition has great influences on uniform flow, i.e., good road condition can enhance the velocity and flow and their increments will increase when road condition becomes better; bad road conditions will reduce the velocity and flow and their reductions will increase when road condition turns worse. Secondly, we study the effects of road conditions on the starting and braking processes. The numerical results show that good road condition will speed up the two processes and that bad road condition will slow down the two processes. Finally, we study the effects of road condition on small perturbation. The numerical results indicate that the stop-and-go phenomena resulted by small perturbation will become more serious when the road condition becomes better.read more
Citations
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Journal ArticleDOI
A new car-following model with consideration of inter-vehicle communication
TL;DR: In this paper, a car-following model with inter-vehicle communication (IVC) was proposed to study the driving behavior under an accident, and the numerical results show that the proposed model can qualitatively describe the effects of IVC on each vehicle's speed, acceleration, movement trail, and headway.
Journal ArticleDOI
Jamming transitions and the effect of interruption probability in a lattice traffic flow model with passing
Poonam Redhu,Arvind Kumar Gupta +1 more
TL;DR: In this article, a new lattice hydrodynamic model is proposed by considering the interruption probability effect on traffic flow with passing and analyzed both theoretically and numerically both from linear and non-linear stability analysis, the effect of interruption probability on the phase diagram is investigated and the condition of existence for kink-antikink soliton solution of mKdV equation is derived.
Journal ArticleDOI
Analyses of the driver's anticipation effect in a new lattice hydrodynamic traffic flow model with passing
Arvind Kumar Gupta,Poonam Redhu +1 more
TL;DR: The theoretical findings are verified using numerical simulation which confirm that traffic jam can be suppressed efficiently by considering the anticipation effect in the new lattice model.
Journal ArticleDOI
Analytical studies on the instabilities of heterogeneous intelligent traffic flow
TL;DR: A linear stability analysis is performed to find the stability threshold of heterogeneous traffic flow using microscopic models, particularly the effect of intelligent vehicles on heterogeneous (or multi-class) traffic flow instabilities.
Journal ArticleDOI
An extended two-lane car-following model accounting for inter-vehicle communication
Hui Ou,Tie-Qiao Tang +1 more
TL;DR: The numerical results show that the proposed model can perfectly describe each vehicle’s motion when an incident occurs, i.e., no collision occurs while the classical full velocity difference (FVD) model produces collision on each lane, which shows the proposed models is more reasonable.
References
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Journal Article
On kinetic waves, II . A theory of traffic flow on long crowded roads
M J Lighthill,G B Whitham +1 more
TL;DR: In this paper, a functional relationship between flow and concentration for traffic on crowded arterial roads has been postulated for some time, and has experimental backing, from which a theory of the propagation of changes in traffic distribution along these roads may be deduced.
Journal ArticleDOI
On kinematic waves II. A theory of traffic flow on long crowded roads
TL;DR: The theory of kinematic waves is applied to the problem of estimating how a ‘hump’, or region of increased concentration, will move along a crowded main road, and is applicable principally to traffic behaviour over a long stretch of road.
Journal ArticleDOI
Shock Waves on the Highway
TL;DR: In this article, a simple theory of traffic flow is developed by replacing individual vehicles with a continuous fluid density and applying an empirical relation between speed and density, which is a simple graph-shearing process for following the development of traffic waves.
Journal ArticleDOI
Traffic and related self-driven many-particle systems
Dirk Helbing,Dirk Helbing +1 more
TL;DR: This article considers the empirical data and then reviews the main approaches to modeling pedestrian and vehicle traffic, including microscopic (particle-based), mesoscopic (gas-kinetic), and macroscopic (fluid-dynamic) models.
Journal ArticleDOI
Dynamical model of traffic congestion and numerical simulation
TL;DR: In this model, the legal velocity function is introduced, which is a function of the headway of the preceding vehicle, and the evolution of traffic congestion is observed with the development of time.