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Bi-directional flow in the Social Force Model
Karlstad University, Faculty of Health, Science and Technology (starting 2013).
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

We use the social force model to study the behaviour of two crowds of pedestrians in a bi-directional flow. There are two main goals of the project. The first goal is to study the effects of perception anisotropy on lane formation of the two crowds. The perception anisotropy models the fact that people actually do not perceive their surroundings equally well in all directions, i.e they have a field of vision. The second goal is to develop pedestrian viscosity indices to characterize the motion of the crowds. Our concepts of viscosity indices estimate how fluid the motion of the crowds are. We develop two viscosity indices. A lane viscosity index which gives information of the flow on large timescales, and a space-dependent viscosity index which can pinpoint where in space the motion is less fluid. Our results indicate that there is a small correlation between the perception anisotropy and the lane formation of the two crowds. The two viscosity indices work as intended but more refinement is needed to cope with simultaneous space-time changes.

Place, publisher, year, edition, pages
Keyword [en]
Pedestrian flow, Newton-like law, Runge-Kutta estimation, Lane formation
National Category
Other Mathematics
URN: urn:nbn:se:kau:diva-43274OAI: diva2:938156
Educational program
Engineering: Engineering Physics (300 ECTS credits)
Available from: 2016-06-20 Created: 2016-06-16 Last updated: 2016-06-21Bibliographically approved

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Faculty of Health, Science and Technology (starting 2013)
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