Abstract
The Central Disaster Management Council of the Japanese Cabinet Office estimates that a class-M7 earthquake will occur in Metropolitan Tokyo or the Tokai area within the next 30 years. In 1995, Japan suffered devastating damage from the Great Hanshin-Awaji Earthquake and has since been devoted to disaster management. Since there has been no report anywhere in the world on a sea-based relief system, our research will lead to a review of ocean spaces in terms of their value in waterfront metropolitan cities. we have explored the feasibility of a relief system utilizing Entertainment and Party Boat (Yakatabunes) which can cover areas from the sea to rivers, and we investigated navigable routes of rivers to suggest effective utilization of ocean spaces and river areas in the event of disaster. As a result, we determined the rescue potential drawing upon Entertainment and Party Boat. A river survey was also conducted to classify navigable routes by boat size.
