71 citations · 513 across the 23 of their papers we have counts for
9 papers · 1 filter
Social groups in pedestrian crowds: Review of their influence on the dynamics and their modelling
Alexandre Nicolas, Fadratul Hafinaz
Pedestrians are often encountered walking in the company of some social relations, rather than alone. The social groups thus formed, in variable proportions depending on the contex…
Model-based assessment of the risks of viral transmission in non-confined crowds
Willy Garcia, Simon Mendez, Baptiste Fray +1
This work aims to assess the risks of Covid-19 disease spread in diverse daily-life situations (referred to as scenarios) involving crowds of maskless pedestrians, mostly outdoors.…
Mechanical response of dense pedestrian crowds to the crossing of intruders
Alexandre Nicolas, Marcelo Kuperman, Santiago Ibanez +2
The increasing number of mass events involving large crowds calls for a better understanding of the dynamics of dense crowds. Inquiring into the possibility of a mechanical descrip…
Experimental Study of Collective Pedestrian Dynamics
Cécile Appert-Rolland, Julien Pettré, Anne-Hélène Olivier +4
We report on two series of experiments, conducted in the frame of two different collaborations designed to study how pedestrians adapt their trajectories and velocities in groups o…
A counterintuitive way to speed up pedestrian and granular bottleneck flows prone to clogging: Can 'more' escape faster?
Alexandre Nicolas, Santiago Ibáñez, Marcelo Kuperman +1
Dense granular flows through constrictions, as well as competitive pedestrian evacuations, are hindered by a propensity to form clogs. We usesimulations of model pedestrians and ex…
Fluctuations in pedestrian evacuation times: Going one step beyond the exit capacity paradigm for bottlenecks
Alexandre Nicolas
For safety reasons, it is important that the design of buildings and public facilities comply with the guidelines compiled in building codes.The latter are often premised on the co…
Origin of the correlations between exit times in pedestrian flows through a bottleneck
Alexandre Nicolas, Ioannis Touloupas
Robust statistical features have emerged from the microscopic analysis of dense pedestrian flows through a bottleneck, notably with respect to the time gaps between successive pass…
Pedestrian flows through a narrow doorway: Effect of individual behaviours on the global flow and microscopic dynamics
Alexandre Nicolas, Sebastián Bouzat, Marcelo Kuperman
We study the dynamics of pedestrian evacuations through a narrow doorway by means of controlled experiments. The influence of the pedestrians' behaviours is investigated by prescri…
Influence of selfish and polite behaviours on a pedestrian evacuation through a narrow exit: A quantitative characterisation
Alexandre Nicolas, Sebastián Bouzat, Marcelo Kuperman
We study the influence of selfish vs. polite behaviours on the dynamics of a pedestrian evacuation through a narrow exit. To this end, experiments involving about 80 participants w…