On ramp metering: towards a better understanding of ALINEA via model-free control

Freeway Density Control Via Model-free Adaptive Ramp Metering Approach

By introducing a new dynamical linearization technology, this paper presents a model-free adaptive control approach for density control of freeway traffic flow via ramp metering, which is consisted with a control input learning law and a parameter updating law. The design and analysis only depends on the I/O data of the freeway traffic system. Furthermore, the control input learning law is exte...

ALINEA Local Ramp Metering, Summary of Field Results

M. Papageorgiou, Dynamic Systems and Simulation Laboratory, Technical University of Crete, 73100Chania, Greece. H. Hadj-Salem, INRETS-DART, 2 avenue du Gl. Malleret Joinville, 94114 Arcueil, France. F. Middelham, Public Works and Water Management, Transport Research Center, Boompjes 200, P.O.B. 1031, 3000 BA Rotterdam, Netherlands. Asservissement Linéaire d’Entrée Autoroutière (ALINEA), a local...

Paper # 03-4400 Optimization of the ALINEA Ramp-metering Control Using Genetic Algorithm with Micro-simulation

Model predictive control with repeated model fitting for ramp metering

In this paper we deal with model predictive control for ramp metering on motorways. A discussion of the way ramp metering tries to prevent, or postpone, congestion on a motorway is presented. As an example, a real-life motorway in Belgium is presented. We discuss a traffic flow model that is used in a receding horizon framework and we argue that the quality of the fit of the traffic flow model ...

Anticipative model predictive control for ramp metering in freeway networks

When implementing ramp metering in the context of freeway networks, traffic can spontaneously re-route due to the applied control actions. Although this re-routing can have an important impact on the resulting traffic situation in the traffic network and on the performance of the traffic network as a whole, re-routing is not automatically included in current model predictive frameworks for free...