Adaptive emission control of freeway traffic using quasi-stationary solutions of an approximate hydrodynamic model

Jozsef K. Tar, Laszlo Nadai, Imre J. Rudas, Terez A. Varkonyi

Research output: Contribution to journalArticle

5 Citations (Scopus)


Precise emission models are so complex that their details practically are not available. The "physics" of hydrodynamic traffic models provides only ambiguous mathematical formulae. Therefore adaptive controllers iteratively improving the forecasts of a rough initial model are required that work without tuning any particular model parameters. For this purpose a simple numerical technique is reported. The stable stationary solutions of a particular model are determined. Then a simple iterative adaptive emission control grasping only the main factors is developed. It is shown that small modification of the parameters of the dynamic model have drastic influence on the emission so the use of adaptive techniques is essential.

Original languageEnglish
Pages (from-to)29-50
Number of pages22
JournalJournal of Applied Nonlinear Dynamics
Issue number1
Publication statusPublished - Jan 1 2012



  • Adaptive control
  • Continuum model of traffic flow
  • Emission control
  • Robust fixed point transformations

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Mechanical Engineering

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