Visual exploration of tsunami evacuation planning
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We present a novel web browser-based interactive visualization tool to aid in rapid tsunami evacuation planning. The interface loads simulated route-schedule flow data for visual analysis and allows users to explore the spatio-temporal evolvement of an evacuation process with a dynamic map. It also supports multiple filtering and summary interaction, i.e., filtering the roads/nodes by their utilization efficiency and summarizing the congested roads during evacuation. The multiple linked views including some diagrams facilitate the analysis of evacuation efficiency and verifying of evacuation schedules. Our tool also supports dynamic evacuation parameter settings to help to make the evacuation strategies and optimize decision-making. A case study on the possible tsunami evacuation events is conducted with disaster managers and domain experts. Encouraging remarks on usability and performance were received.
KeywordsInteractive visualization Visual analysis Tsunami evacuation planning Tsunami simulation
The authors wish to thank anonymous reviewers. This work was supported in part by a grant from Young Teacher Foundation of Ocean University of China (No: 201213016), International Science & Technology Cooperation Program of China (No: 2014DFA10410), National Natural Science Foundation of China (No: 61271405).
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