Modeling of collective effects in human or molecular pedestrian flows

Designing buildings, cities, or video games, requires to understand how pedestrians move. However, modeling their motion is not so obvious. In a first part, we shall see how experiments can teach us about the interactions between pedestrians and guide us for the development of new models at low, intermediate, or high densities.

In a second part, we shall change scale, and consider the molecular pedestrians responsible for transport inside our cells. We will try to understand which rules they obey, and why the cell sometimes uses very counter intuitive solutions to organize this transport.