Motility: from the molecular to the population scale (2008)
Organizers:
Christian Schmeiser (U. Vienna), PF Michel Rascle (CNRS)
Our 2008 thematic program:
"Motility: from the molecular to the population scale"
has a double emphasis on Mathematical Biology and on Traffic Flow.
In this framework, there will be two workshops on Traffic Flow and
related problems:
1. Multiscale Problems and Models in Traffic Flow: May 05-09, 2008,
including an introductory minicourse for graduate students on
May 05, 06.
2. Kinetic and Macroscopic Models for Cars and Pedestrian Traffic Flow:
July 02-04, 2008
These two workshops are intentionnally of small size, with few talks and
a lot of time for discussions and interactions. The participation of a
few graduate students is also encouraged, and there will be a
Minicourse on traffic flow for graduate students at the beginning of workshop 1.
Here is a brief description of each of these workshops.
Workshop 1. Multiscale Problems and Models in Traffic Flow:
May 05-09, 2008, with a Mini-course on Traffic Flow on May 05-06.
There are several competing approaches in the modeling of traffic flow,
depending on the scales of interest and the amount of instability that
each scientific community would like to see in the description of some
of the complex phenomena experimentally observed. At short scales,
several classes of models can produce either negative velocities, like
systems based on gas dynamics, e.g. Payne-Whitham, or crashes, like
Bando's model. Sometimes, bad things already happen at the microscopic
level.
On the other hand, the natural mathematical assumptions which preclude
these unacceptable features, like in First Order or Aw-Rascle, or
Colombo, types of models, possibly with source-terms satisfying the
subcharacteristic condition, turn out to be too strong to allow for
enough oscillations at larger scales, such as stop and go waves. The
issue is then to find a satisfactory compromise, if there is any (?)
(one may also have different ideas on what such a compromise should
be !). In any event, a careful discussion of experimentally observed
phenomena should be emphasized.
So we we would like to discuss these - sometimes controversial -
issues with a few experts from the different interested communities.
A first list of speakers includes:
R. Colombo (Brescia), P. Degond (Toulouse), I. Gasser (Hamburg),
J. Greenberg (Pittsburgh), D. Helbing (Zürich), JP Lebacque (Arcueil),
M. Rascle (Nice and WPI), F. Siebel (Munchen), M. Treiber (Dresden),
P. Wagner (Berlin), E. Wilson (Bristol) ...
Workshop 2. Kinetic and Macroscopic Models for Cars, Supply Chains and
Pedestrian Traffic Flow:
July 02-04, 2008
On one hand, the classical kinetic approach of car traffic flow is of
course aimed at providing a description at an intermediate scale between
micro and macro. In contrast with the situation in gas dynamics,
there are (in principle ...) much less collisions to drive the system
to the local "Maxwellians". Nevertheless, this type of description
provides nice simulations, as well as formal links to macroscopic
models. Some recent results in this direction will be discussed, as
well as recent results on kinetic or macroscopic aspects of supply chain
modeling.
On the other hand, pedestrian flows, and more generally, collective
behaviours in animal populations, e.g. ants, are now more and more
accurately studied on the mathematical and numerical side, with
different approaches. Some of them will be presented.
A first list of confirmed invited speakers includes:
P. Degond (Toulouse), I. Farkas (Budapest), M. Herty
(Aachen), R. Illner (Victoria), A. Klar (Kaiserslautern),
L. Pareschi (Ferrara), A. Schadschneider (Köln), M. Treiber (Dresden).
Other invitations are pending
Events
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Location: WPI seminar room, Nordbergstrasse 15
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Time: 2. Jul 2008 (Wed) - 4. Jul 2008 (Fri); Opening: 11:15
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Organisation(s)
WPI |
Organiser(s)
Reinhard Illner (U. of Victoria)
Michel Rascle (U. de Nice, CNRS)
Christian Schmeiser (U. Wien, WPI) |
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Location: WPI seminar room, Nordbergstrasse 15
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Time: 5. May 2008 (Mon) - 9. May 2008 (Fri); Opening: 13:45
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Organisation(s)
WPI |
Organiser(s)
Michel Rascle (U. de Nice, CNRS)
Christian Schmeiser (U. Wien, WPI) |
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| Remark: The precise program of the end of the week will be specified later, in order to allow for more interactions between the participants | |
Pauli Fellows
Visitors
| Colombo, Rinaldo |
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7. May 2008-8. May 2008 |
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| Corrias, Lucilla |
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1. Jun 2008-8. Jun 2008 |
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| Degond, Pierre |
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4. May 2008-7. May 2008 |
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| Farkas, Illes |
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3. Jul 2008-4. Jul 2008 |
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| Gasser, Ingenuin |
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5. May 2008-8. May 2008 |
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| Helbing, Dirk |
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7. May 2008-11. May 2008 |
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| Herty, Michael |
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2. Jul 2008-5. Jul 2008 |
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| Illner, Reinhard |
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30. Jun 2008-8. Jul 2008 |
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| Lebacque, Jean-Patrick |
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4. May 2008-9. May 2008 |
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| Pareschi, Lorenzo |
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2. Jul 2008-5. Jul 2008 |
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| Pietschmann, Jan- Frederik |
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1. Jul 2008-4. Jul 2008 |
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| Schadschneider, Andreas |
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2. Jul 2008-4. Jul 2008 |
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| Sfakianakis, Nikolaos |
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10. Jan 2009-31. Jan 2009 |
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15. Feb 2009-28. Feb 2009 |
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| Siebel, Florian |
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6. May 2008-9. May 2008 |
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| Tayeb, Mohamed Lazhar |
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14. Jul 2008-2. Aug 2008 |
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| Treiber, Martin |
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6. May 2008-9. May 2008 |
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2. Jul 2008-4. Jul 2008 |
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| Wagner, Peter |
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7. May 2008-8. May 2008 |
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12. May 2008-16. May 2008 |
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| Wilson, Eddie |
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5. May 2008-9. May 2008 |
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PostDocs
Pauli-PostDocs
PreDocs