Civil Engineering Journal
Vol 9, No 4 (2023): April

Spatial Modeling of Flood-Vulnerability as Basic Data for Flood Mitigation

Iin Arianti (Politeknik Negeri Pontianak, Jl. Ahmad Yani, Pontianak 78124,)
Muhammad Rafani (Politeknik Negeri Pontianak, Jl. Ahmad Yani, Pontianak 78124,)
Nurul Fitriani (Politeknik Negeri Pontianak, Jl. Ahmad Yani, Pontianak 78124,)
. Nizar (Politeknik Negeri Pontianak, Jl. Ahmad Yani, Pontianak 78124,)



Article Info

Publish Date
01 Apr 2023

Abstract

Identifying risks in flood-prone areas is necessary to support risk management decisions. This research was conducted to establish a vulnerability model of flood hazards in the city of Pontianak. The model was based on the scoring and weighting of biophysical factors. The AHP method and logical formulations were used to establish the model. The result showed that the accuracy of the model used by AHP to determine the vulnerability of floods was 80% in Pontianak City. The accuracy of the model using logical formulations to determine the vulnerability level of a flood was 84%. The Kappa accuracy value in model 1 is 76.7%. The model of flood vulnerability explains that most of Pontianak City has a very high level of flood vulnerability, which is 31,440,568.8 m2 or 29.11% of the total research area of 108,003,319.8 m2. The vulnerable area is 29,945,485.7 m2 or 27.73%, and the less safe area is 22,126,936.3 m2 or 20.49%, with the safe area being 24,490,328.7 m2or 22.67% of the total area. This research contributes to the government to establish policies regarding flood management and urban development in the future, and as an effort to mitigate against flooding. Doi: 10.28991/CEJ-2023-09-04-02 Full Text: PDF

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Journal Info

Abbrev

cej

Publisher

Subject

Civil Engineering, Building, Construction & Architecture

Description

Civil Engineering Journal is a multidisciplinary, an open-access, internationally double-blind peer -reviewed journal concerned with all aspects of civil engineering, which include but are not necessarily restricted to: Building Materials and Structures, Coastal and Harbor Engineering, ...