Abstract

Risk management is one of the important options for flood disaster mitigation. Xiaoji village, a high flash flood prone area in Xixia county, Hehan Province, China, was taken as an example to perform analysis on flash flood risk assessment and application to at village level. This article first introduced the general approach, Hazard-Vulnerability Overlay Analysis (HVOA), for rapid flash flood risk assessment, then presented detail information on model construction and analysis on hazard of flash flood, exposures to hazards, and vulnerability assessment; finally, presented the application of these outputs in Xiaoji village. The main conclusions are as follows: (1) HVOA is a simplified and practical method to perform rapid flash flood risk assessment at village level, (2) hazard assessment at river basin scale is significant, though risk evaluation was performed for a local area, (3) risk assessments have potential in the fields of village’s early warning, emergency response planning, landuse and structural measure planning, and risk awareness enhancement.

Keywords:Village-oriented; Flash flood; Risk; Assessment; Application