5 papers
Noise-induced transition to stop-and-go waves in single-file traffic rationalized by an analogy with Kapitza's inverted pendulum
Oscar Dufour, Jakob Cordes, Alexandre Nicolas +3
Stop-and-go waves in vehicular traffic are commonly explained as a linear collective instability induced by e.g. response delays. We explore an alternative mechanism that more fait…
Dense Crowd Dynamics and Pedestrian Trajectories: A Multiscale Field Study at the Fête des Lumières in Lyon
Oscar Dufour, Huu-Tu Dang, Jakob Cordes +5
We present one of the first comprehensive field datasets capturing dense pedestrian dynamics across multiple scales, ranging from macroscopic crowd flows over distances of several…
Single-file pedestrian dynamics: a review of agent-following models
Jakob Cordes, Mohcine Chraibi, Antoine Tordeux +1
Single-file dynamics has been studied intensively, both experimentally and theoretically. It shows interesting collective effects, such as stop-and-go waves, which are validation c…
Dimensionless Numbers Reveal Distinct Regimes in the Structure and Dynamics of Pedestrian Crowds
Jakob Cordes, Andreas Schadschneider, Alexandre Nicolas
In fluid mechanics, dimensionless numbers like the Reynolds number help classify flows. We argue that such a classification is also relevant for crowd flows by putting forward the…
The trouble with 2nd order models or how to generate stop-and-go traffic in a 1st order model
Jakob Cordes, Andreas Schadschneider, Antoine Tordeux
Classical second order models of pedestrian dynamics, like the social-force model, suffer from various unrealistic behaviors in the dynamics, e.g. backward motion, oscillations and…