Freeway ramp metering control made easy and efficient

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

1 LGI2A - Laboratoire de Génie Informatique et d'Automatique de l'Artois
2 LIX - Laboratoire d'informatique de l'École polytechnique [Palaiseau]
3 CETE Nord-Picardie
4 ALIEN - Algebra for Digital Identification and Estimation
5 CRAN - Centre de Recherche en Automatique de Nancy

''Model-free'' control and the related ''intelligent'' proportional-integral (PI) controllers are successfully applied to freeway ramp metering control. Implementing moreover the corresponding control strategy is straightforward. Numerical simulations on the other hand need the identification of quite complex quantities like the free flow spêed and the critical density. This is achieved thanks to new estimation techniques where the differentiation of noisy signals plays a key rôle. Several excellent computer simulations are provided and analyzed.

Keywords: numerical differentiation.; estimation; identification; critical density; model-free control; intelligent PI controllers; ramp metering; congestion; fundamental diagram; free flow speed; numerical differentiation; Traffic control

Domains: Automatic Control Engineering; Optimization and Control [math.OC]; Signal and Image Processing; Automatic; Signal and Image processing; Environmental Engineering

Hassane Abouaïssa, Michel Fliess, Violina Iordanova, Cédric Join. Freeway ramp metering control made easy and efficient. 13th IFAC Symposium on Control in Transportation Systems, CTS 2012, Sep 2012, Sofia, Bulgaria. ⟨hal-00711847⟩