Emergency crowd simulation for outdoor environments

Date
2010
Advisor
Instructor
Source Title
Computers & Graphics: an international journal of systems & applications in computer graphics
Print ISSN
0097-8493
Electronic ISSN
Publisher
Pergamon Press
Volume
34
Issue
2
Pages
136 - 144
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Abstract

We simulate virtual crowds in emergency situations caused by an incident, such as a fire, an explosion, or a terrorist attack. We use a continuum dynamics-based approach to simulate the escaping crowd, which produces more efficient simulations than the agent-based approaches. Only the close proximity of the incident region, which includes the crowd affected by the incident, is simulated. We use a model-based rendering approach where a polygonal mesh is rendered for each agent according to the agent's skeletal motion. To speed up the animation and visualization, we employ an offline occlusion culling technique. We animate and render a pedestrian model only if it is visible according to the static visibility information computed. In the pre-processing stage, the navigable area is decomposed into a grid of cells and the from-region visibility of these cells is computed with the help of hardware occlusion queries. © 2009 Elsevier Ltd. All rights reserved.

Course
Other identifiers
Book Title
Keywords
Crowd simulation, Emergency, Occlusion culling, Outdoor environments, Agent - based approach, Close proximity, Continuum dynamics, Efficient simulation, Emergency situation, Grid of cells, Model - based rendering, Pedestrian models, Polygonal meshes, Pre - processing, Speed - ups, Terrorist attacks, Animation, Visibility, Time varying systems
Citation
Published Version (Please cite this version)