Συντάχθηκε 18-09-2012 09:51
από Markos Papageorgiou
Email συντάκτη: mpapageorgiou<στο>tuc.gr
Ενημερώθηκε:
-
Ιδιότητα: ΔΕΠ ΜΠΔ.
"Papageorgiou Markos" έγραψε:
Ανακοίνωση Επιστημονικής Διάλεξης
Τίτλος: Active traffic control schemes for urban networks with macroscopic modeling.
Ομιλητής: Prof. Nikolas Geroliminis, École Polytechnique Fédérale de Lausanne, Ελβετία.
Χρόνος: Τρίτη 18 Σεπτεμβρίου 2012, ώρα 12:00.
Τόπος: Αίθουσα Συνεδριάσεων ΜΠΔ
Περίληψη: Instead of the micro-modeling approach of traffic congestion, the macroscopic fundamental diagram (MFD) aims to simplify the micro-modeling task of the urban network where the collective traffic flow dynamics of sub-networks capture the main characteristics of traffic congestion, such as the evolution of space-mean flows and densities in different regions of the city. The MFD can be utilized to introduce elegant control strategies to improve mobility and decrease delays in large urban networks, that local ones are unable to succeed. We develop methodologies to model and understand the collective behavior for different types of urban systems, with emphasis in conflicts for the same road space. Ultimately, the goal is to develop optimization tools and investigate what type of real-time active traffic management schemes (congestion pricing, vehicle restriction, large scale traffic signal control) can improve mobility measures in a city for cities of different structures. We build a hierarchical feedback control network of multiple levels. The validation of the modeling methodologies and the traffic management schemes are conducted in various and complex city structures scenarios using data from field experiments and advanced micro-simulations.
Βιογραφικά στοιχεία: Nikolas Geroliminis is an Assistant Professor at EPFL and the head of the Urban Transport Systems Laboratory (LUTS). He has a diploma in Civil Engineering from the National Technical University of Athens (NTUA) and a MSc and Ph.D. in civil engineering from University of California, Berkeley. Before joining EPFL he was an Assistant Professor on the faculty of the Department of Civil Engineering at the University of Minnesota. He is a member of the Transportation Research Board's Traffic Flow Theory Committee. He also serves in the editorial board of Transportation Research, part B and Transportation Letters. His research interests focus primarily on urban transportation systems, traffic flow theory and control, public transportation and logistics.
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