Indoor Spatial Model and Accessibility Index for Emergency Evacuation of People with Disabilities

AbstractAlthough indoor emergency evacuation drills, simulations, and plans are addressed and well covered in literature, little attention is currently paid to the evacuation of people with disabilities (PWD). Routing is a major process in all indoor emergency evacuations, simulations, and plans. Current indoor emergency evacuation routing algorithms find the shortest path or attempt to balance the traffic on exit doors. However, accessibility is more important than travel distance during the emergency evacuation of PWD. A spatial model, an accessibility index assigned to appropriate elements in the spatial model, and a way-finding technique are the major requirements of such routing. Existing spatial models of buildings are general purpose, fall short of efficiently and effectively handling emergency evacuations, and do not take into account the requirements of PWD. This paper proposes a spatial model for indoors which is specifically developed for the routing requirements of PWD during emergency evacuat...

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