Integration of Geospatial Technology and Community Participation in Flood Risk Management: A Case Study of Phai Khwang Community Khao Phra Ngam Subdistrict, Mueang District, Lopburi Province

Abstract

Flooding has become a recurring problem in many areas of Lopburi Province, particularly in Ban Phai Khwang Community, Khao Phra Ngam Subdistrict, where low-lying topography, continuous urban expansion, and increasing rainfall variability have intensified the frequency and severity of flood events. These conditions have significantly affected local livelihoods, property, and residents’ quality of life. Effective flood management therefore requires both spatial information and active community participation. This study aimed to integrate geospatial technology with community participation in flood risk management. The study consisted of two main components: 1) flood risk area analysis using a Geographic Information System (GIS) with weighted overlay analysis based on physical and land-use factors, and 2) an assessment of community participation using questionnaires administered to 167 respondents, analyzed using descriptive statistics and correlation analysis. In addition, focus group discussions were conducted to formulate community-based flood management strategies.

The results showed that most areas of Khao Phra Ngam Subdistrict, particularly Ban Phai Khwang Community, were classified as high- and very high-risk flood zones. The community demonstrated a high level of flood-related knowledge and awareness, while the overall level of participation in flood management was moderate. Community participation was higher in problem identification, planning, and evaluation than in practical implementation. Factors significantly associated with participation included education level, occupation, income, and flood-related knowledge and awareness.                

The integration of GIS-based flood risk analysis with participatory processes through focus group discussions enabled the development of flood management strategies based on the principles of prevention, preparedness, response, and recovery, which were consistent with the local context. The findings indicate that integrating geospatial technology with community participation can effectively support local-level flood risk management and may serve as a useful framework for policy development and flood management in other areas with similar characteristics.