Leçons inaugurales Profs Nikolas Geroliminis & Tom Battin
Event details
| Date | 04.11.2015 |
| Hour | 17:15 › 19:15 |
| Speaker |
Prof. Nikolas Geroliminis Prof. Tom Battin |
| Location | |
| Category | Inaugural lectures - Honorary Lecture |
Prof. Nikolas Geroliminis:
"Traffic congestion in smart cities with big data"
Abstract:
Our research tackles the problem of modeling and optimization in large-scale congested traffic networks in a holistic way with an aggregated realistic representation of traffic dynamics and route choice and multiple modes of transport. This talk will talk about the integration of big multi-sensor data, the understanding of multimodal patterns, the coordination and optimization of urban efficiency for the travel of people. This is challenging because cities are highly complex systems. This seminar will describe methodologies to model and understand the collective behavior for different types of urban systems. It will highlight under what physical properties the aggregated laws will provide reasonable description of congestion for single- and multi-modal systems. It will also describe how to develop hierarchical feedback control and 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. The validation of the methodologies and the traffic management schemes are conducted in various and complex city structures scenarios using data from large field experiments and detailed simulations.
Short Bio:
Prof. Nikolas Geroliminis is an Associate Professor at EPFL and the head of the Urban Transport Systems Laboratory (LUTS). Before joining EPFL he was an Assistant Professor on the faculty of the Department of Civil Engineering at the University of Minnesota. 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. He is an Associate Editor for Transportation Research part C and he also serves in the editorial board of TR, part B, part C, Journal of ITS and of many international conferences. He is a member of the Transportation Research Board's Traffic Flow Theory Committee. His research interests focus primarily on urban transportation systems, traffic flow theory and control, public transportation and logistics, Optimization and Large Scale Networks. He is a recent recipient of the ERC Starting Grant “METAFERW: Modeling and controlling traffic congestion and propagation in large-scale urban multimodal networks”
Prof. Tom Battin:
"Of biofilms and carbon: The beauty and challenges of reconciling scales in fluvial ecosystems"
Abstract:
Biofilms dominate microbial life in fluvial ecosystems. They are microbial “megacities”, which harbour an astonishing biodiversity, develop complex architectures and regulate critical ecosystem processes and functions. At the scale of Earth system processes, stream and river ecosystems are now being recognized as major players of the global carbon cycle. Streams and rivers receive large terrestrial deliveries of organic carbon, which microbes respire to carbon dioxide and which is ultimately emitted into the atmosphere. In his Inaugural Lecture, Tom Battin will sketch recent developments and identify major research gaps in these apparently disparate fields of aquatic sciences. He will then discuss possible avenues to fill these and to bridge apparent scales between microbial biofilms and carbon cycling in streams, based on current and future research in the new “Stream Biofilm and Ecosystem Research Laboratory” at ENAC.
Short Bio:
Tom Battin has spent the last fifteen years studying the microbial life and biogeochemistry in stream ecosystems. He has pioneered the field of biofilm ecology and his work was conducive to bring streams and rivers as new players onto the map of the global carbon cycle. He received his PhD from the University of Vienna, where after several postdoctoral positions in the USA and Spain, he got appointed Associated Professor and later Full Professor in Limnology. He was Visiting Professor at the University of Uppsala and Guest Professor at the University of Applied Arts Vienna. He joined EPFL as Full Professor in “Ecohydraulics” in 2015.
"Traffic congestion in smart cities with big data"
Abstract:
Our research tackles the problem of modeling and optimization in large-scale congested traffic networks in a holistic way with an aggregated realistic representation of traffic dynamics and route choice and multiple modes of transport. This talk will talk about the integration of big multi-sensor data, the understanding of multimodal patterns, the coordination and optimization of urban efficiency for the travel of people. This is challenging because cities are highly complex systems. This seminar will describe methodologies to model and understand the collective behavior for different types of urban systems. It will highlight under what physical properties the aggregated laws will provide reasonable description of congestion for single- and multi-modal systems. It will also describe how to develop hierarchical feedback control and 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. The validation of the methodologies and the traffic management schemes are conducted in various and complex city structures scenarios using data from large field experiments and detailed simulations.
Short Bio:
Prof. Nikolas Geroliminis is an Associate Professor at EPFL and the head of the Urban Transport Systems Laboratory (LUTS). Before joining EPFL he was an Assistant Professor on the faculty of the Department of Civil Engineering at the University of Minnesota. 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. He is an Associate Editor for Transportation Research part C and he also serves in the editorial board of TR, part B, part C, Journal of ITS and of many international conferences. He is a member of the Transportation Research Board's Traffic Flow Theory Committee. His research interests focus primarily on urban transportation systems, traffic flow theory and control, public transportation and logistics, Optimization and Large Scale Networks. He is a recent recipient of the ERC Starting Grant “METAFERW: Modeling and controlling traffic congestion and propagation in large-scale urban multimodal networks”
Prof. Tom Battin:
"Of biofilms and carbon: The beauty and challenges of reconciling scales in fluvial ecosystems"
Abstract:
Biofilms dominate microbial life in fluvial ecosystems. They are microbial “megacities”, which harbour an astonishing biodiversity, develop complex architectures and regulate critical ecosystem processes and functions. At the scale of Earth system processes, stream and river ecosystems are now being recognized as major players of the global carbon cycle. Streams and rivers receive large terrestrial deliveries of organic carbon, which microbes respire to carbon dioxide and which is ultimately emitted into the atmosphere. In his Inaugural Lecture, Tom Battin will sketch recent developments and identify major research gaps in these apparently disparate fields of aquatic sciences. He will then discuss possible avenues to fill these and to bridge apparent scales between microbial biofilms and carbon cycling in streams, based on current and future research in the new “Stream Biofilm and Ecosystem Research Laboratory” at ENAC.
Short Bio:
Tom Battin has spent the last fifteen years studying the microbial life and biogeochemistry in stream ecosystems. He has pioneered the field of biofilm ecology and his work was conducive to bring streams and rivers as new players onto the map of the global carbon cycle. He received his PhD from the University of Vienna, where after several postdoctoral positions in the USA and Spain, he got appointed Associated Professor and later Full Professor in Limnology. He was Visiting Professor at the University of Uppsala and Guest Professor at the University of Applied Arts Vienna. He joined EPFL as Full Professor in “Ecohydraulics” in 2015.
Practical information
- Informed public
- Invitation required
- This event is internal
Organizer
- Section SIE et Section GC
Contact
- Christina Treier et Mélanie Thuillard