2017
Alessandro Corbetta; Federico Toschi
Overhead pedestrian tracking for large scale real-life crowd dynamics analyses Incollection
In: Enrico Ronchi (Ed.): New approaches to evacuation modelling, pp. 40-51, Lund University Fire Safety Engineering Report, 2017.
Abstract | Links | BibTeX | Tags: Big data, Eindhoven Station, High statistic measurements, Pedestrian dynamics
@incollection{Corbetta_IAFSS17,
title = {Overhead pedestrian tracking for large scale real-life crowd dynamics analyses},
author = {Alessandro Corbetta and Federico Toschi},
editor = {Enrico Ronchi},
url = {http://portal.research.lu.se/portal/files/34762689/New_approaches_to_evacuation_modelling.pdf},
year = {2017},
date = {2017-09-01},
booktitle = {New approaches to evacuation modelling},
pages = {40-51},
publisher = {Lund University Fire Safety Engineering Report},
abstract = {Accurate measurements of pedestrian dynamics, in form of individual trajectories, are paramount to investigate the complex motion of walking individuals and to produce reliable crowd simulation models for ordinary and evacuation conditions. This paper reviews one pedestrian trajectory collection technique, recently employed by the same authors for acquiring crowd dynamics data in real-life conditions. Operating unsupervised, the technique has enabled unprecedented, 24/7, months-long, pedestrian measurement campaigns that provided millions of individual trajectories, allowing novel statistical insights. The tracking technique leverages overhead depth-sensors, such as Microsoft Kinects, arranged in grids, and ad hoc pedestrian localization algorithms. Here we review its relevant technological aspects in view of statistical crowd dynamics analyses. },
keywords = {Big data, Eindhoven Station, High statistic measurements, Pedestrian dynamics},
pubstate = {published},
tppubtype = {incollection}
}
Alessandro Corbetta; Chung-min Lee; Roberto Benzi; Adrian Muntean; Federico Toschi
Fluctuations around mean walking behaviours in diluted pedestrian flows Journal Article
In: Physical Review E, vol. 95, pp. 032316, 2017.
Abstract | Links | BibTeX | Tags: High statistic measurements, ILIAD15_STA, Langevin Equations, Metaforum, Pedestrian dynamics
@article{Corbetta_PRE_2017,
title = {Fluctuations around mean walking behaviours in diluted pedestrian flows},
author = {Alessandro Corbetta and Chung-min Lee and Roberto Benzi and Adrian Muntean and Federico Toschi},
url = {https://journals.aps.org/pre/abstract/10.1103/PhysRevE.95.032316},
year = {2017},
date = {2017-03-15},
journal = {Physical Review E},
volume = {95},
pages = {032316},
abstract = {Understanding and modeling the dynamics of pedestrian crowds can help with designing and increasing the safety of civil facilities. A key feature of a crowd is its intrinsic stochasticity, appearing even under very diluted conditions, due to the variability in individual behaviors. Individual stochasticity becomes even more important under densely crowded conditions, since it can be nonlinearly magnified and may lead to potentially dangerous collective behaviors. To understand quantitatively crowd stochasticity, we study the real-life dynamics of a large ensemble of pedestrians walking undisturbed, and we perform a statistical analysis of the fully resolved pedestrian trajectories obtained by a yearlong high-resolution measurement campaign. Our measurements have been carried out in a corridor of the Eindhoven University of Technology via a combination of Microsoft Kinect 3D range sensor and automatic head-tracking algorithms. The temporal homogeneity of our large database of trajectories allows us to robustly define and separate average walking behaviors from fluctuations parallel and orthogonal with respect to the average walking path. Fluctuations include rare events when individuals suddenly change their minds and invert their walking directions. Such tendency to invert direction has been poorly studied so far, even if it may have important implications on the functioning and safety of facilities. We propose a model for the dynamics of undisturbed pedestrians, based on stochastic differential equations, that provides a good agreement with our field observations, including the occurrence of rare events.},
keywords = {High statistic measurements, ILIAD15_STA, Langevin Equations, Metaforum, Pedestrian dynamics},
pubstate = {published},
tppubtype = {article}
}
2016
Alessandro Corbetta; Chung-min Lee; Adrian Muntean; Federico Toschi
Asymmetric pedestrian dynamics on a staircase landing from continuous measurements Book Chapter
In: W. Daamen & V.L. Knoop (Ed.): vol. Traffic and Granular Flow '15, pp. 49-56, Berlin: Springer, 2016.
Abstract | Links | BibTeX | Tags: High statistic measurements, Metaforum, Pedestrian dynamics
@inbook{Corbetta_TGF15,
title = {Asymmetric pedestrian dynamics on a staircase landing from continuous measurements},
author = {Alessandro Corbetta and Chung-min Lee and Adrian Muntean and Federico Toschi},
editor = {W. Daamen & V.L. Knoop},
url = {https://link.springer.com/chapter/10.1007/978-3-319-33482-0_7},
doi = {https://doi.org/10.1007/978-3-319-33482-0_7},
year = {2016},
date = {2016-12-11},
volume = {Traffic and Granular Flow '15},
pages = {49-56},
publisher = {Berlin: Springer},
abstract = {We investigate via extensive experimental data the dynamics of pedestrians walking in a corridor-shaped landing in a building at Eindhoven University of Technology. With year-long automatic measurements employing a Microsoft Kinect™ 3D-range sensor and ad hoc tracking techniques, we acquired few hundreds of thousands pedestrian trajectories in real-life conditions. Here, we discuss the asymmetric features of the dynamics in the two walking directions with respect to the flights of stairs (i.e. ascending or descending). We provide a detailed analysis of position and speed fields for the cases of pedestrians walking alone undisturbed and for couple of pedestrians in counter-flow. Then, we show average walking velocities exploring all the observed combinations in terms of numbers of pedestrians and walking directions.},
keywords = {High statistic measurements, Metaforum, Pedestrian dynamics},
pubstate = {published},
tppubtype = {inbook}
}
2014
Alessandro Corbetta; Luca Bruno; Adrian Muntean; Federico Toschi
High statistics measurements of pedestrian dynamics Journal Article
In: Transportation Research Procedia, vol. 2, pp. 96-104, 2014.
Abstract | Links | BibTeX | Tags: High statistic measurements, ILIAD15_STA, Metaforum, Pedestrian dynamics
@article{Corbetta_TRP14,
title = {High statistics measurements of pedestrian dynamics},
author = {Alessandro Corbetta and Luca Bruno and Adrian Muntean and Federico Toschi},
url = {http://www.sciencedirect.com/science/article/pii/S2352146514000490},
doi = {10.1016/j.trpro.2014.09.013},
year = {2014},
date = {2014-10-24},
journal = {Transportation Research Procedia},
volume = {2},
pages = {96-104},
abstract = {Aiming at a quantitative understanding of basic aspects of pedestrian dynamics, extensive and high-accuracy measurements of real-life pedestrian trajectories have been performed. A measurement strategy based on Microsoft KinectTM has been used. Specifically, more than 100.000 pedestrians have been tracked while walking along a trafficked corridor at the Eindhoven University of Technology, The Netherlands. The obtained trajectories have been analyzed as ensemble data.
The main result consists of a statistical descriptions of pedestrian characteristic kinematic quantities such as positions and fundamental diagrams, possibly conditioned to the local crowd flow (e.g. co-flow or counter-flow).
},
keywords = {High statistic measurements, ILIAD15_STA, Metaforum, Pedestrian dynamics},
pubstate = {published},
tppubtype = {article}
}
The main result consists of a statistical descriptions of pedestrian characteristic kinematic quantities such as positions and fundamental diagrams, possibly conditioned to the local crowd flow (e.g. co-flow or counter-flow).
The processing scripts for our datasets can be found on github .