Book ChapterDOI
Crowd Dynamics Through Conservation Laws
Rinaldo M. Colombo,Magali Lécureux-Mercier,Mauro Garavello +2 more
- Vol. 47, Iss: 1, pp 83-110
TLDR
In this paper, several macroscopic models, based on systems of conservation laws, were considered for the study of crowd dynamics. But none of the models considered here contain nonlocal terms, usually obtained through convolutions with smooth functions used to reproduce the visual horizon of each individual.Abstract:
We consider several macroscopic models, based on systems of conservation laws, for the study of crowd dynamics. All the systems considered here contain nonlocal terms, usually obtained through convolutions with smooth functions, used to reproduce the visual horizon of each individual. We classify the various models according to the physical domain (the whole space \({\mathbb {R}}^N\) or a bounded subset), to the terms affected by the nonlocal operators, and to the number of different populations we aim to describe. For all these systems, we present the basic well posedness and stability results.read more
Citations
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On the singular local limit for conservation laws with nonlocal fluxes
TL;DR: In this article, the authors give an answer to a question posed in Amorim et al. (ESAIM Math Model Numer Anal 49(1):19-37), which can loosely speaking, be formulated as follows: consider a family of continuity equations where the velocity depends on the solution via the convolution by a regular kernel.
Posted Content
A general result on the approximation of local conservation laws by nonlocal conservation laws: The singular limit problem for exponential kernels
TL;DR: In this paper, the problem of approximating a scalar conservation law by a conservation law with nonlocal flux was studied, and it was shown that the (unique) weak solution of the nonlocal problem converges strongly in O(L √ n) to the entropy solution of local conservation law.
Journal ArticleDOI
On existence and uniqueness of weak solutions to nonlocal conservation laws with BV kernels
TL;DR: In this paper , the existence and uniqueness of weak solutions to conservation laws with nonlocal flux was shown to be true under the condition that the nonlocal term is given by a convolution.
Journal ArticleDOI
A general result on the approximation of local conservation laws by nonlocal conservation laws: The singular limit problem for exponential kernels
TL;DR: In this paper , the problem of approximating a scalar conservation law by a conservation law with nonlocal flux was studied, and it was shown that the (unique) weak solution of the nonlocal problem converges strongly in O(L √ n) to the entropy solution of local conservation law.
Posted Content
Non Local Conservation Laws in Bounded Domains
Elena Rossi,Rinaldo M. Colombo +1 more
TL;DR: The well posedness for a class of non local systems of conservation laws in a bounded domain is proved and various stability estimates are provided.
References
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Blow-up of the total variation in the local limit of a nonlocal traffic model
TL;DR: In this article, the authors considered a model for vehicular traffic involving a nonlocal conservation law with anisotropic convolution kernel and focused on the singular local limit obtained by letting the convolution kernels converge to the Dirac delta.
Journal ArticleDOI
Modeling crowd dynamics through coarse-grained data analysis
Sebastien Motsch,Mehdi Moussaïd,Elsa G. Guillot,Mathieu Moreau,Julien Pettré,Guy Theraulaz,Cécile Appert-Rolland,Pierre Degond +7 more
TL;DR: The Bi-directional Macroscopic (BM) model could serve as a building block to develop on the fly prediction of crowd movements and help deploying real-time crowd optimization strategies.
Journal ArticleDOI
Viscous profiles in models of collective movements with negative diffusivities
Andrea Corli,Luisa Malaguti +1 more
TL;DR: In this paper, the authors consider an advection-diffusion equation whose diffusivity can be negative and prove the existence, uniqueness and sharpness of the corresponding profiles.
Journal ArticleDOI
A modeling framework for biological pest control
Rinaldo M. Colombo,Elena Rossi +1 more
TL;DR: An analytic framework where biological pest control can be simulated through the choice of a time and space dependent function representing the deployment of a species of predators that feed on pests is presented.
Book ChapterDOI
Numerical Methods for Mean-Field and Moment Models for Pedestrian Flow
TL;DR: Pedestrian flow modelling is not only used as a tool for understanding pedestrian dynamics at public places but also support transportation planners or managers to design timetables.