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G.A. Strofylas, K.N. Porfyri, I.K. Nikolos, A.I. Delis, M. Papageorgiou, "Calibrating a Traffic Flow Model with Parallel Differential Evolution", in , (Editors), "Proceedings of the Fifth International Conference on Parallel, Distributed, Grid and Cloud Computing for Engineering", Civil-Comp Press, Stirlingshire, UK, Paper 26, 2017. doi:10.4203/ccp.111.26

Keywords: parallel differential evolution, surrogate models, artificial neural networks, macroscopic traffic flow modeling.

Summary

Given the importance of the credibility and validity required in macroscopic traffic flow models while performing real-word simulations, the necessity of employing an efficient, computationally fast and reliable constrained optimization scheme for model calibration appears to be mandatory to ensure that the traffic flow characteristics are accurately represented by such models. To this end, a parallel, metamodel-assisted Differential Evolution (DE) algorithm is employed for the calibration of the secondorder macroscopic gas-kinetic traffic flow (GKT) model using real traffic data from Attiki Odos freeway in Athens, Greece. The parallelization of the DE algorithm is performed using Message Passing Interface (MPI), while artificial neural networks (ANNs) are used as surrogate models. Numerical simulations are performed, which demonstrate that the DE algorithm can be effectively used for the search of the globally optimal model parameters in the GKT model; in fact the method appears to be promising for the calibration of other similar traffic models as well.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 111 PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON PARALLEL, DISTRIBUTED, GRID AND CLOUD COMPUTING FOR ENGINEERING Edited by: Paper 26 Calibrating a Traffic Flow Model with Parallel Differential Evolution G.A. Strofylas, K.N. Porfyri, I.K. Nikolos, A.I. Delis and M. Papageorgiou School of Production Engineering and Management, Technical University of Crete, Chania, Crete, Greece doi:10.4203/ccp.111.26 purchase the full-text of this paper Full Bibliographic Reference for this paper G.A. Strofylas, K.N. Porfyri, I.K. Nikolos, A.I. Delis, M. Papageorgiou, "Calibrating a Traffic Flow Model with Parallel Differential Evolution", in , (Editors), "Proceedings of the Fifth International Conference on Parallel, Distributed, Grid and Cloud Computing for Engineering", Civil-Comp Press, Stirlingshire, UK, Paper 26, 2017. doi:10.4203/ccp.111.26 Keywords: parallel differential evolution, surrogate models, artificial neural networks, macroscopic traffic flow modeling. Summary Given the importance of the credibility and validity required in macroscopic traffic flow models while performing real-word simulations, the necessity of employing an efficient, computationally fast and reliable constrained optimization scheme for model calibration appears to be mandatory to ensure that the traffic flow characteristics are accurately represented by such models. To this end, a parallel, metamodel-assisted Differential Evolution (DE) algorithm is employed for the calibration of the secondorder macroscopic gas-kinetic traffic flow (GKT) model using real traffic data from Attiki Odos freeway in Athens, Greece. The parallelization of the DE algorithm is performed using Message Passing Interface (MPI), while artificial neural networks (ANNs) are used as surrogate models. Numerical simulations are performed, which demonstrate that the DE algorithm can be effectively used for the search of the globally optimal model parameters in the GKT model; in fact the method appears to be promising for the calibration of other similar traffic models as well. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £45 +P&P)
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