Flood hazard assessment: flood mapping in barangay san juan i, noveleta, cavite using analytical hierarchy process (ahp) and geographic information system (gis)/ Axel L. Amorin, Angelika D. Belingan, Justine May G. Galo, Adrian P. Habitan, Karyl Kate S. Magbuhos, and Vianne M. Monton.--

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Amorin, Axel L [author]

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Material type: Text

TextPublication details: Manila: Technological University of the Philippines, 2023.Description: xiv, 131pages: 29cmContent type:

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BTH TA 145 A46 2023

Dissertation note: College of Engineering.-- Bachelor of science in civil engineering: Technological University of the Philippines, 2023. Summary: Flooding is one of the most prevalent natural disasters worldwide, causing threats to life and property. In the Philippines, the province of Cavite is prone to flooding due to its low elevation and limited river and drainage canal capacity, particularly in the Municipality of Noveleta. Thus, this study aims to assess flood hazards and identify risk areas in Barangay San Juan I, Noveleta, Cavite, using a Geographical Information System (GIS)-based Analytical Hierarchy Process (AHP) approach, considering criteria such as rainfall, slope, elevation, soil type, flow direction, flood depth, population density, and land use or cover. Each parameter was compared to the derived weights using a pairwise comparison matrix (PCM) based on the judgment of ten (10) experts in various fields chosen by purposive sampling. The weights calculated were then used in hazard assessment computations and map development that led to rainfall results as the primary contributing parameter, accounting for 19.5% of the risk of flooding. Other significant parameters included land use/land cover (15.4%), flood depth (13.5%), population density (11.8%), flow direction (11.7%), elevation (11.2%), slope (10.1%), and soil type (6.9%). The results show less than the 1.5% consistency ratio, which is considered valid. The flood hazard map revealed the majority of the barangay was at moderate risk of flooding, with high-risk sections, especially in the northwest. Furthermore, this study provides relevant information, such as data and GIS tool outputs, to assist the disaster management team in developing an effective community-based disaster risk reduction program to prepare for future flood events.

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Holdings
Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TA 145 A46 2023 (Browse shelf(Opens below))	c.1.	Not for loan		BTH0005182

Bachelor's thesis

College of Engineering.-- Bachelor of science in civil engineering: Technological University of the Philippines, 2023.

Includes bibliographic references and index.

Flooding is one of the most prevalent natural disasters worldwide, causing threats
to life and property. In the Philippines, the province of Cavite is prone to flooding due to
its low elevation and limited river and drainage canal capacity, particularly in the
Municipality of Noveleta. Thus, this study aims to assess flood hazards and identify risk
areas in Barangay San Juan I, Noveleta, Cavite, using a Geographical Information System
(GIS)-based Analytical Hierarchy Process (AHP) approach, considering criteria such as
rainfall, slope, elevation, soil type, flow direction, flood depth, population density, and land
use or cover. Each parameter was compared to the derived weights using a pairwise
comparison matrix (PCM) based on the judgment of ten (10) experts in various fields
chosen by purposive sampling. The weights calculated were then used in hazard assessment
computations and map development that led to rainfall results as the primary contributing
parameter, accounting for 19.5% of the risk of flooding. Other significant parameters
included land use/land cover (15.4%), flood depth (13.5%), population density (11.8%),
flow direction (11.7%), elevation (11.2%), slope (10.1%), and soil type (6.9%). The results
show less than the 1.5% consistency ratio, which is considered valid. The flood hazard map
revealed the majority of the barangay was at moderate risk of flooding, with high-risk
sections, especially in the northwest. Furthermore, this study provides relevant
information, such as data and GIS tool outputs, to assist the disaster management team in
developing an effective community-based disaster risk reduction program to prepare for
future flood events.

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