GIS-Based Approach: A Flood Hazard Map Development of Brgy. Aldavoc, Tagkawayan, Quezon
Area of Research
Abstract
People widely recognize flooding as one of the most dangerous natural
disasters, causing significant economic damage and environmental destruction.
The research integrated geospatial analysis, shapefile data, QGIS, and ArcMap
tools to analyze the flood risk index and create a comprehensive flood hazard
map of Brgy. Aldavoc, Tagkawayan, Quezon Province, which is known for its
vulnerability to flooding and can serve as a reference for disaster emergency
planning. A traverse, relocation, and topographic survey were performed, which
verified the political barangay boundary and obtained elevation data for the
location area. The study revealed that Brgy. Aldavoc's highest elevation is
approximately 103.500 meters, located at the coordinates 20398.886 N,
19633.218 E, and its lowest elevation is 100.345 meters, situated at the
coordinates 20081.404 N, 19687.649 E. The data collected was generated and
rendered in AutoCAD Civil 3D with GE Survey software through formulate a
topographic plan. Through the application of QGIS 3.0 and ArcMap, multiple
maps were generated, including DEM (Digital Elevation Model), slope,
river/stream, and precipitation, facilitating the development of a flood hazard
map. Analysis of the flood hazard map revealed areas at varying risk levels—
areas with low elevation, near bodies of water, and a record of previous flooding
incidence—are prone to flooding and range from very high risk to moderate risk
of flooding. Local residents, LGUs, and MDRRMO of the Municipality ofMANUEL S. ENVERGA UNIVERSITY FOUNDATION
Lucena City
An Autonomous University
DR. CESAR A. VILLARIBA RESEARCH AND
KNOWLEDGE MANAGEMENT INSTITUTE
QUALITY FORM
Document Code: DCAVRKMI-F-PSFR Tagkawayan, Quezon evaluated the effectiveness of the flood hazard map,
indicating its potential significance for disaster mitigation planning.
Keywords
Flood Hazard Map
Flood Risk Assessment
Geographic Information System
Geospatial Analysis
Topographic Survey
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APPLIED TECHNOLOGY, SCIENCE , INDUSTRYBUSINESS, ECONOMICS AND INDUSTRY 4.0 RESEARCHBUSINESS, INDUSTRY, LIVELIHOOD and FOOD SECURITYCOMMUNITY DEVELOPMENT and SOCIAL SUSTAINABILITYEDUCATION 4.0 AND WORKFORCE 4.0 RESEARCHEDUCATION and EDUCATION MANAGEMENTENVIRONMENTAL CONSERVATION, PROTECTION and DEVELOPMENTENVIRONMENTAL PROTECTION, DEVELOPMENT, AND CONSERVATION RESEARCHHEALTH and WELLNESS PROGRAM DEVELOPMENTHEALTH RESEARCH, DEVELOPMENT, INNOVATION AND EXTENSIONHUMANITIES, ARTS, CULTURE and TOURISMLEGAL, LAW ENFORCEMENT AND CRIMINOLOGY RESEARCHPOLITICS, SOCIETY, AND CULTURE RESEARCHTECHNOLOGY, ENGINEERING, AND INDUSTRY 4.0 RESEARCH