Spatial Evaluation of Potential Tsunami Vertical Evacuation: A Case Study of the Western Coastal Belt in Sri Lanka



<p>The purpose of this study was to spatially evaluate the potential for tsunami vertical evacuation in the western coastal belt in Sri Lanka. The Moratuwa Municipal Council Area (MMCA) was selected for this case study by considering the existing urban structure and the tsunami vulnerability of the western coastal belt. The development pattern of the MMCA will denote significant damages in the next tsunami disaster. Several tsunami horizontal evacuation centers have been identified inside the MMCA, but most of them are located away from the coastal belt. The residents need to travel long distances to reach a safe location, and it is a challenging task, especially in nighttime tsunami events. Thus, a nighttime tsunami incident was selected by considering current evacuation procedures and the tsunami vulnerability of the study area. Identifying potential vertical evacuation sites near residential areas will benefit the residents for effective tsunami evacuation.</p>


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