Experimental characterization of collision avoidance in pedestrian dynamics
In the present paper, the avoidance behavior of pedestrians was characterized by controlled experiments. Several conflict situations were studied considering different flow rates and group sizes in crossing and head-on configurations. Pedestrians were recorded from above, and individual two-dimensio...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_24700045_v94_n2_p_Parisi |
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todo:paper_24700045_v94_n2_p_Parisi2023-10-03T16:42:18Z Experimental characterization of collision avoidance in pedestrian dynamics Parisi, D.R. Negri, P.A. Bruno, L. Image processing Conflict situation Controlled experiment Direction of motion Experimental characterization Pedestrian dynamics Pedestrian experiments Relative orientation Two-dimensional trajectory Trajectories accident prevention human movement (physiology) pedestrian physiology probability Accident Prevention Humans Movement Pedestrians Probability In the present paper, the avoidance behavior of pedestrians was characterized by controlled experiments. Several conflict situations were studied considering different flow rates and group sizes in crossing and head-on configurations. Pedestrians were recorded from above, and individual two-dimensional trajectories of their displacement were recovered after image processing. Lateral swaying amplitude and step lengths were measured for free pedestrians, obtaining similar values to the ones reported in the literature. Minimum avoidance distances were computed in two-pedestrian experiments. In the case of one pedestrian dodging an arrested one, the avoidance distance did not depend on the relative orientation of the still pedestrian with respect to the direction of motion of the first. When both pedestrians were moving, the avoidance distance in a perpendicular encounter was longer than the one obtained during a head-on approach. It was found that the mean curvature of the trajectories was linearly anticorrelated with the mean speed. Furthermore, two common avoidance maneuvers, stopping and steering, were defined from the analysis of the acceleration and curvature in single trajectories. Interestingly, it was more probable to observe steering events than stopping ones, also the probability of simultaneous steering and stopping occurrences was negligible. The results obtained in this paper can be used to validate and calibrate pedestrian dynamics models. © 2016 American Physical Society. Fil:Parisi, D.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bruno, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_24700045_v94_n2_p_Parisi |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Image processing Conflict situation Controlled experiment Direction of motion Experimental characterization Pedestrian dynamics Pedestrian experiments Relative orientation Two-dimensional trajectory Trajectories accident prevention human movement (physiology) pedestrian physiology probability Accident Prevention Humans Movement Pedestrians Probability |
| spellingShingle |
Image processing Conflict situation Controlled experiment Direction of motion Experimental characterization Pedestrian dynamics Pedestrian experiments Relative orientation Two-dimensional trajectory Trajectories accident prevention human movement (physiology) pedestrian physiology probability Accident Prevention Humans Movement Pedestrians Probability Parisi, D.R. Negri, P.A. Bruno, L. Experimental characterization of collision avoidance in pedestrian dynamics |
| topic_facet |
Image processing Conflict situation Controlled experiment Direction of motion Experimental characterization Pedestrian dynamics Pedestrian experiments Relative orientation Two-dimensional trajectory Trajectories accident prevention human movement (physiology) pedestrian physiology probability Accident Prevention Humans Movement Pedestrians Probability |
| description |
In the present paper, the avoidance behavior of pedestrians was characterized by controlled experiments. Several conflict situations were studied considering different flow rates and group sizes in crossing and head-on configurations. Pedestrians were recorded from above, and individual two-dimensional trajectories of their displacement were recovered after image processing. Lateral swaying amplitude and step lengths were measured for free pedestrians, obtaining similar values to the ones reported in the literature. Minimum avoidance distances were computed in two-pedestrian experiments. In the case of one pedestrian dodging an arrested one, the avoidance distance did not depend on the relative orientation of the still pedestrian with respect to the direction of motion of the first. When both pedestrians were moving, the avoidance distance in a perpendicular encounter was longer than the one obtained during a head-on approach. It was found that the mean curvature of the trajectories was linearly anticorrelated with the mean speed. Furthermore, two common avoidance maneuvers, stopping and steering, were defined from the analysis of the acceleration and curvature in single trajectories. Interestingly, it was more probable to observe steering events than stopping ones, also the probability of simultaneous steering and stopping occurrences was negligible. The results obtained in this paper can be used to validate and calibrate pedestrian dynamics models. © 2016 American Physical Society. |
| format |
JOUR |
| author |
Parisi, D.R. Negri, P.A. Bruno, L. |
| author_facet |
Parisi, D.R. Negri, P.A. Bruno, L. |
| author_sort |
Parisi, D.R. |
| title |
Experimental characterization of collision avoidance in pedestrian dynamics |
| title_short |
Experimental characterization of collision avoidance in pedestrian dynamics |
| title_full |
Experimental characterization of collision avoidance in pedestrian dynamics |
| title_fullStr |
Experimental characterization of collision avoidance in pedestrian dynamics |
| title_full_unstemmed |
Experimental characterization of collision avoidance in pedestrian dynamics |
| title_sort |
experimental characterization of collision avoidance in pedestrian dynamics |
| url |
http://hdl.handle.net/20.500.12110/paper_24700045_v94_n2_p_Parisi |
| work_keys_str_mv |
AT parisidr experimentalcharacterizationofcollisionavoidanceinpedestriandynamics AT negripa experimentalcharacterizationofcollisionavoidanceinpedestriandynamics AT brunol experimentalcharacterizationofcollisionavoidanceinpedestriandynamics |
| _version_ |
1807316096385024000 |