Spatial activity-based modeling for pedestrian crowd simulation. (April 2013)

• Record Type: Journal Article
• Authors: Qiu, Fasheng; Hu, Xiaolin
• Is Part Of: Simulation. Volume 89:Number 4(2013)
• Page Start: 451
• Page End: 465
• Publication Date: 2013-04
• Subjects: pedestrian crowd simulation -- spatial activity -- space resolution -- activity-based modeling -- efficient simulation; Computer simulation -- Periodicals; 003.3
• DOI: 10.1177/0037549711435950
• Languages: English
• ISSNs: 0037-5497

Abstract

This paper proposes a spatial activity-based modeling approach and applies it to pedestrian crowd behavior simulations. Compared to conventional pedestrian crowd models where pedestrians make movement decisions in a time-based manner, the spatial activity-based pedestrian crowd model allows a pedestrian to make decisions only when needed, that is, when there is significant change in the pedestrian's spatial position, as defined by a threshold called 'space resolution'. To demonstrate the spatial activity-based modeling, we develop an activity-based model for pedestrian crowd simulation in a two-dimensional environment and compare it with a conventional time-based simulation model. Experiment results show that the spatial activity-based model can lead to more efficient simulations when simulating heterogeneous pedestrian crowds.