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A PDE-ODE model for traffic control with autonomous vehicles

Thibault Liard, Raphael Stern, Maria Laura Delle Monache

2023Networks and Heterogeneous Media13 citationsDOIOpen Access PDF

Abstract

<abstract><p>We consider a partial differential equation - ordinary differential equation system to describe the dynamics of traffic flow with autonomous vehicles. In the model, the bulk flow of human drivers is represented by a scalar conservation law, while each autonomous vehicle is described by an ordinary differential equation. The coupled PDE-ODE model is introduced, and existence of solutions for this model is shown, along with a proposed algorithm to construct approximate solutions. Next, we propose a control strategy for the speeds of the autonomous vehicles to minimize the average fuel consumption of the entire traffic flow. Existence of solutions for the optimal control problem is proved, and we numerically show that a reduction in average fuel consumption is possible with an AV acting as a moving bottleneck.</p></abstract>

Topics & Concepts

OdeOrdinary differential equationPartial differential equationBottleneckConservation lawScalar (mathematics)Microscopic traffic flow modelFuel efficiencyApplied mathematicsFlow (mathematics)MathematicsTraffic flow (computer networking)Reduction (mathematics)Computer scienceDifferential equationControl theory (sociology)Mathematical optimizationMathematical analysisControl (management)Automotive engineeringEngineeringGeometryComputer securityArtificial intelligenceStatisticsEmbedded systemTraffic generation modelTraffic control and managementTransportation Planning and OptimizationVehicle emissions and performance