The Many Roles of the Relaxation time Parameter in Force based Models of Pedestrian Dynamics
2014 (English)In: Transportation Research Procedia, Elsevier, 2014, Vol. 2, 300-308 p.Conference paper (Other academic)
In force based models of pedestrian traffic, the relaxation time, τ, is related to the time it takes a pedestrian to adapt its motion to its preferences. An example of this is linear acceleration, but τ is also connected to how the agent adjusts to spatial variations in its preferred velocity, and affects evasive maneuvers. These many roles of τ may be a problem when calibrating force based models.
We compare linear acceleration, to new data on, and simulations of, turning movements. The results indicate that the models predict drifting of a magnitude that is not supported by the data.
Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 2, 300-308 p.
pedestrian simulation; force based models; calibration; relaxation time; social force model
Transport Systems and Logistics
IdentifiersURN: urn:nbn:se:liu:diva-119121DOI: 10.1016/j.trpro.2014.09.057OAI: oai:DiVA.org:liu-119121DiVA: diva2:819029
The Conference on Pedestrian and Evacuation Dynamics 2014 (PED 2014)