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Quantification of Loss of Access to Critical Services during Floods in Greater Jakarta : Integrating Social, Geospatial, and Network Perspectives
Title / Series / Name
Publication Volume
Publication Issue
Pages
Editors
Keywords
2020 Jakarta flood
GIS
access to critical facilities
flood
network statistics
physical–social vulnerability assessment
General Earth and Planetary Sciences
SDG 11 - Sustainable Cities and Communities
GIS
access to critical facilities
flood
network statistics
physical–social vulnerability assessment
General Earth and Planetary Sciences
SDG 11 - Sustainable Cities and Communities
URI
https://hdl.handle.net/20.500.14018/27535
Abstract
This work presents a framework for assessing the socio-physical disruption of critical infrastructure accessibility using the example of Greater Jakarta, a metropolitan area of the Indonesian city. The first pillar of the framework is damage quantification based on the real flood event in 2020. Within this pillar, the system network statistics before and shortly after the flood were compared. The results showed that the flood impeded access to facilities, distorted transport connectivity, and increased system vulnerability. Poverty was found to be negatively associated with surface elevation, suggesting that urbanization of flood-prone areas has occurred. The second pillar was a flood simulation. Our simulations identified the locations and clusters that are more vulnerable to the loss of access during floods, and the entire framework can be applied to other cities and urban areas globally and adapted to account for different disasters that physically affect urban infrastructure. This work demonstrated the feasibility of damage quantification and vulnerability assessment relying solely on open and publicly available data and tools. The framework, which uses satellite data on the occurrence of floods made available by space agencies in a timely manner, will allow for rapid ex post investigation of the socio-physical consequences of disasters. It will save resources, as the analysis can be performed by a single person, as opposed to expensive and time-consuming ground surveys. Ex ante vulnerability assessment based on simulations will help communities, urban planners, and emergency personnel better prepare for future shocks.
Topic
Publisher
Place of Publication
Type
Journal article
Date
2023-11-05
Language
ISBN
Identifiers
10.3390/rs15215250