Dynamic Evacuation Guidance Considering Hazards and Congestion
Date Issued
2016
Date
2016
Author(s)
Lin, Yu-Fu
Abstract
The planning for pedestrian evacuation in buildings is important because these buildings are subject to different types of emergency events. In an emergency, pedestrians could rely on emergency guidance such as direction and exit signs for finding routes to exits. However, the safety of a route and its distance to an exit are not deterministic during the evacuation because the distributions of hazards and congestion progress over time. To provide more effective information to pedestrians in an emergency, this research proposes a feedback method to design a dynamic evacuation guidance system in buildings that simultaneously consider hazards and congestion caused by pedestrians. The design method applies to buildings with convex polygonal interior spaces and includes three key steps. First, a dynamic evacuation guidance is created based on the prediction of hazard and congestion. Second, given the evacuation guidance, a pedestrian simulation model with the compliance behaviors is utilized to predict the future congestion. Third, the dynamic evacuation guidance is updated according to and the predicted congestion. Finally, the proposed methodology is demonstrated with numerical examples and the results show that the method has potential to reduce evacuation time in emergency.
Subjects
Evacuation Guidance
Pedestrian Simulation
Optimization
Dynamic Network
Compliance Behavior
Type
thesis
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