Modelling physical contacts to evaluate the individual risk in a dense crowd
Abstract Tumble and stampede in a dense crowd may be caused by irrational behaviours of individuals and always troubles the safety management of crowd activities. Risk evaluation based on pedestrian dynamical models can be regarded as an effective method of preventing crowd disasters. Here, a method...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-03-01
|
| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-31148-z |
| _version_ | 1797864702277058560 |
|---|---|
| author | Chongyang Wang Liangchang Shen Wenguo Weng |
| author_facet | Chongyang Wang Liangchang Shen Wenguo Weng |
| author_sort | Chongyang Wang |
| collection | DOAJ |
| description | Abstract Tumble and stampede in a dense crowd may be caused by irrational behaviours of individuals and always troubles the safety management of crowd activities. Risk evaluation based on pedestrian dynamical models can be regarded as an effective method of preventing crowd disasters. Here, a method depending on a combination of collision impulses and pushing forces was used to model the physical contacts between individuals in a dense crowd, by which the acceleration error during physical contacts caused by a traditional dynamical equation can be avoided. The human domino effect in a dense crowd could be successfully reproduced, and the crushing and trampling risk of a microscopic individual in a crowd could be quantitatively evaluated separately. This method provides a more reliable and integral data foundation for evaluating individual risk that shows better portability and repeatability than macroscopic crowd risk evaluation methods and will also be conducive to preventing crowd disasters. |
| first_indexed | 2024-04-09T22:56:16Z |
| format | Article |
| id | doaj.art-8b4bed15d5f645619287e93a4970abe2 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-09T22:56:16Z |
| publishDate | 2023-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-8b4bed15d5f645619287e93a4970abe22023-03-22T11:14:16ZengNature PortfolioScientific Reports2045-23222023-03-0113111010.1038/s41598-023-31148-zModelling physical contacts to evaluate the individual risk in a dense crowdChongyang Wang0Liangchang Shen1Wenguo Weng2Department of Engineering Physics, Institute of Public Safety Research, Tsinghua UniversityDepartment of Engineering Physics, Institute of Public Safety Research, Tsinghua UniversityDepartment of Engineering Physics, Institute of Public Safety Research, Tsinghua UniversityAbstract Tumble and stampede in a dense crowd may be caused by irrational behaviours of individuals and always troubles the safety management of crowd activities. Risk evaluation based on pedestrian dynamical models can be regarded as an effective method of preventing crowd disasters. Here, a method depending on a combination of collision impulses and pushing forces was used to model the physical contacts between individuals in a dense crowd, by which the acceleration error during physical contacts caused by a traditional dynamical equation can be avoided. The human domino effect in a dense crowd could be successfully reproduced, and the crushing and trampling risk of a microscopic individual in a crowd could be quantitatively evaluated separately. This method provides a more reliable and integral data foundation for evaluating individual risk that shows better portability and repeatability than macroscopic crowd risk evaluation methods and will also be conducive to preventing crowd disasters.https://doi.org/10.1038/s41598-023-31148-z |
| spellingShingle | Chongyang Wang Liangchang Shen Wenguo Weng Modelling physical contacts to evaluate the individual risk in a dense crowd Scientific Reports |
| title | Modelling physical contacts to evaluate the individual risk in a dense crowd |
| title_full | Modelling physical contacts to evaluate the individual risk in a dense crowd |
| title_fullStr | Modelling physical contacts to evaluate the individual risk in a dense crowd |
| title_full_unstemmed | Modelling physical contacts to evaluate the individual risk in a dense crowd |
| title_short | Modelling physical contacts to evaluate the individual risk in a dense crowd |
| title_sort | modelling physical contacts to evaluate the individual risk in a dense crowd |
| url | https://doi.org/10.1038/s41598-023-31148-z |
| work_keys_str_mv | AT chongyangwang modellingphysicalcontactstoevaluatetheindividualriskinadensecrowd AT liangchangshen modellingphysicalcontactstoevaluatetheindividualriskinadensecrowd AT wenguoweng modellingphysicalcontactstoevaluatetheindividualriskinadensecrowd |