Search results for "Traffic wave"

showing 3 items of 3 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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Contribution to the platoon distribution analysis in steady-state traffic conditions

2014

The traffic flow analysis and the relevant vehicle distribution (“free-moving” or “platooned” vehicles) on highway facilities at uninterrupted flow has always had fundamental importance in Highway Engineering, with special reference to topics like traffic operations, car accidents, road safety and air pollution emissions. In light of this, the study suggests a calculation algorithm as a random test generator to simulate a steady state traffic flow and to provide time headways. Thanks to the outcome produced by numerical simulations, we analysed platoon distributions within traffic flows in a steady-state regime and showed the results of numerical analyses carried out by traffic random proce…

EngineeringSteady state (electronics)Stochastic processbusiness.industryPoison controlGeotechnical Engineering and Engineering GeologyTraffic flowPlatoons statistical model steady-state time headway random function of tra c flowTransport engineeringFlow (mathematics)Control theoryPlatoonbusinessHighway engineeringCivil and Structural EngineeringTraffic wave
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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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