Search results for "Traffic congestion reconstruction with Kerner's three-phase theory"

showing 4 items of 4 documents

Optimal Paths on Urban Networks Using Travelling Times Prevision

2012

We deal with an algorithm that, once origin and destination are fixed, individuates the route that permits to reach the destination in the shortest time, respecting an assigned maximal travel time, and with risks measure below a given threshold. A fluid dynamic model for road networks, according to initial car densities on roads and traffic coefficients at junctions, forecasts the future traffic evolution, giving dynamical weights to a constrained 𝐾 shortest path algorithm. Simulations are performed on a case study to test the efficiency of the proposed procedure.

Mathematical optimizationTraffic congestion reconstruction with Kerner's three-phase theoryArticle SubjectComputer scienceFluid dynamic model; K shortest path algorithm; Travelling times previsionGeneral EngineeringTraffic simulationK shortest path algorithmMeasure (mathematics)lcsh:QA75.5-76.95Computer Science ApplicationsTraffic congestionFluid dynamic modelModeling and SimulationShortest path problemComputer Science::Networking and Internet Architecturelcsh:Electronic computers. Computer scienceTravelling times previsionDijkstra's algorithmConstrained Shortest Path FirstSimulationTraffic waveModelling and Simulation in Engineering
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Stochastic description of traffic breakdown

2003

We present a comparison of nucleation in an isothermal-isochoric container with traffic congestion on a one-lane freeway. The analysis is based, in both cases, on the probabilistic description by stochastic master equations. Further we analyze the characteristic features of traffic breakdowns. To describe this phenomenon we apply the stochastic model regarding the jam emergence to the formation of a large car cluster on the highway.

Physics::Physics and SocietyMathematical optimizationEngineeringTraffic congestion reconstruction with Kerner's three-phase theoryStochastic modellingbusiness.industryTraffic flowTraffic congestionMaster equationContainer (abstract data type)Three-phase traffic theorybusinessTraffic generation modelSimulationSPIE Proceedings
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Urban Traffic Analysis through an UAV

2014

Abstract In order to realize a precise and accurate traffic study, a method to evaluate the real traffic flow conditions in urban areas based on videos acquired by an UAV, Unmanned Aerial Vehicle, is proposed. In this way it does not require additional equipment to earth and, not being invasive, does not influence the driver behavior. This paper presents the results obtained in terms of vehicular traffic flow along a way in the city of Palermo. The results have been compared to experiments using macroscopic simulation models and the eventually differences have been discussed.

Traffic analysisTraffic congestion reconstruction with Kerner's three-phase theoryComputer sciencereal traffic flow conditionUAVSimulation modelingmacroscopic modeldronereal traffic flow conditionsmacroscopic modelsTraffic flowurban traffic analysis; UAV; drone; real traffic flow conditions; macroscopic models; video analysisurban traffic analysiurban traffic analysisSettore ICAR/05 - Trasportivideo analysisGeneral Materials ScienceSimulationProcedia - Social and Behavioral Sciences
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TWO-LANE TRAFFIC WITH PLACES OF OBSTRUCTION TO TRAFFIC

2004

As the Nagel–Schreckenberg model (NaSch model) became known as a realistic approach to describe traffic flow on single-lane streets, this model was extended to two-lane traffic by several groups. On the base of our two-lane model, we will now investigate the impact of a place of obstruction, e.g., because of road works, on partial fractions, densities and mean velocities.

Traffic congestion reconstruction with Kerner's three-phase theoryComputer scienceGeneral Physics and AstronomyStatistical and Nonlinear PhysicsTraffic flowBase (topology)Nagel–Schreckenberg modelCellular automatonComputer Science ApplicationsComputational Theory and MathematicsThree-phase traffic theoryTraffic bottleneckAlgorithmMathematical PhysicsSimulationTraffic waveInternational Journal of Modern Physics C
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