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Feasibility of evacuating vulnerable people during a tsunami: Comparing assistant velocities with a wheelchair, transport chair, and rollator on three different inclines outdoors

This study aims to analyze and compare the transportation feasibility of the fol-lowing three tsunami evacuation support devices that carry vulnerable persons: (A) a rollator, (B) a transport chair, and (C) a wheelchair. Each of these supports was examined for its feasibility during transit along a steep slope, gentle slope, and ﬂat land. The results indicated that the rollator was the most feasible tool, followed by the transport chair and the wheelchair; however, having the assistance of support personnel enabled the victims to ﬂee faster and more effec-tively. Furthermore, the ﬁndings indicate that although wheelchairs are the most effective in evacuating vulnerable persons, all the studied tools can provide assistance.