A fresh look at ramp metering control: ALINEA without any tedious calibration

Cédric Join (1, 2, 3) , Hassane Abouaïssa (4) , Michel Fliess (5)

1 NON-A - Non-Asymptotic estimation for online systems
2 CRAN - Centre de Recherche en Automatique de Nancy
3 ALIEN
4 LGI2A - Laboratoire de Génie Informatique et d'Automatique de l'Artois
5 LIX - Laboratoire d'informatique de l'École polytechnique [Palaiseau]

ALINEA is a well known ramp metering closed-loop control the aim of which is to improve highway traffic. This report shows that ALINEA may be slightly modified in order to be efficiently implemented without any need of crucial time-varying quantities, like the critical density and the free-flow speed, which are most difficult to estimate correctly online. Some convincing computer experiments, which employ real data, are displayed and discussed.

Mots clés: highway; critical density; calibration; ramp metering; estimation; ALINEA; free-flow speed; closed-loop control

Domaines: Infrastructures de transport; Automatique; Automatique / Robotique; Optimisation et contrôle [math.OC]; Informatique ubiquitaire

Cédric Join, Hassane Abouaïssa, Michel Fliess. A fresh look at ramp metering control: ALINEA without any tedious calibration. [Research Report] Ecole polytechnique, Palaiseau, France. 2015. ⟨hal-01117068⟩