A basic study on spaces designed to cope with flooding relating to wisdom and lessons learned from our ancestors

For cases related to disaster reduction community planning

Abstract

The purpose of this study is to obtain basic materials for the design method of water hazard preventive space in disaster risk management, which is compatible with both disaster prevention and urban space planning. For this purpose, examples of water disaster preventive spaces that have been formed over a long period of time as wisdom and lessons learned from our ancestors were collected and examined. As a result, the following flood-prevention spaces were identified: "circle levee," "cross-levee," "flood prevention forest," and "tatami levee," which are all related to flood prevention. In addition, "coastal disaster prevention forests" were identified for tsunami countermeasures. They could be classified into three types of defense forms as basic materials for the design method of water disaster response space: (1) multiple defense type, (2) ecological (vegetation) utilization type, and (3) temporary assembly type.