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Journal of Applied Nonlinear Dynamics
Miguel A. F. Sanjuan (editor), Albert C.J. Luo (editor)
Miguel A. F. Sanjuan (editor)

Department of Physics, Universidad Rey Juan Carlos, 28933 Mostoles, Madrid, Spain


Albert C.J. Luo (editor)

Department of Mechanical and Industrial Engineering, Southern Illinois University Ed-wardsville, IL 62026-1805, USA

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Adaptive Emission Control of Freeway Traffic Using Quasi-Stationary Solutions of an Approximate Hydrodynamic Model

Journal of Applied Nonlinear Dynamics 1(1) (2011) 29--50 | DOI:10.5890/JAND.2011.12.002

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

Communication Informatics & Telematics Knowledge Centre, Obuda University Budapest, Becsi ut 96/B, H-1034 Budapest, Hungary

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Precise emission models are so complex that their details practically are not available. The “physics” of hydrodynamic traffic models provides only ambiguousmathematical 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.


This research was supported by the National Development Agency and the Hungarian National Scientific Research Fund (OTKA CNK 78168).


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