Comparing green infrastructure as ecosystem-based disaster risk reduction with gray infrastructure in terms of costs and benefits under uncertainty

A theoretical approach

Ayumi Onuma, Takahiro Tsuge

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The Eco-DRR (ecosystem-based disaster risk reduction) is attracting attention as infrastructure that substitutes "gray" or built infrastructure, owing to its attractive characteristics such as lower costs of introduction and maintenance, provision of various ecosystem services, and local community development, among others. On the other hand, gray infrastructure is still a central measure of DRR, as there is a comprehensive understanding of its design and functioning against natural hazards. The argument about the use of green infrastructure instead of gray infrastructure in many aspects of DRR raises an important question: under what circumstances is green infrastructure more desirable? This paper uses a theoretical approach to provide an exact condition under which introducing green infrastructure is desirable, taking into consideration the aspect of uncertainty in deriving the optimal size of green infrastructure and the disaster risk (or expected damage). Under optimal green infrastructure, we show an exact level of the population, under which using Eco-DRR is preferable to gray infrastructure, expressed by parameters reflecting the probability of occurrence of hazard, probability of preventing exposure to the hazard, population size, and vulnerability to damage accruing from exposure, as well as costs and benefits of the two infrastructures. Our results provide useful information regarding policy decision-making about whether to adopt gray or green infrastructure in an area, by applying the results to various cases by assuming the exact values of the parameters.

Original languageEnglish
JournalInternational Journal of Disaster Risk Reduction
DOIs
Publication statusAccepted/In press - 2018 Jan 1

Fingerprint

Disasters
Ecosystems
disaster
Hazards
infrastructure
uncertainty
ecosystem
costs
cost
Costs
Decision making
risk reduction
Uncertainty
damages
hazard
information policy
damage
natural hazard
community development
ecosystem service

Keywords

  • Cost-benefit analysis
  • Eco-DRR
  • Gray infrastructure
  • Green infrastructure
  • Uncertainty

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Safety Research
  • Geology

Cite this

@article{ad7bff8a307044499d9d9b68d969281b,
title = "Comparing green infrastructure as ecosystem-based disaster risk reduction with gray infrastructure in terms of costs and benefits under uncertainty: A theoretical approach",
abstract = "The Eco-DRR (ecosystem-based disaster risk reduction) is attracting attention as infrastructure that substitutes {"}gray{"} or built infrastructure, owing to its attractive characteristics such as lower costs of introduction and maintenance, provision of various ecosystem services, and local community development, among others. On the other hand, gray infrastructure is still a central measure of DRR, as there is a comprehensive understanding of its design and functioning against natural hazards. The argument about the use of green infrastructure instead of gray infrastructure in many aspects of DRR raises an important question: under what circumstances is green infrastructure more desirable? This paper uses a theoretical approach to provide an exact condition under which introducing green infrastructure is desirable, taking into consideration the aspect of uncertainty in deriving the optimal size of green infrastructure and the disaster risk (or expected damage). Under optimal green infrastructure, we show an exact level of the population, under which using Eco-DRR is preferable to gray infrastructure, expressed by parameters reflecting the probability of occurrence of hazard, probability of preventing exposure to the hazard, population size, and vulnerability to damage accruing from exposure, as well as costs and benefits of the two infrastructures. Our results provide useful information regarding policy decision-making about whether to adopt gray or green infrastructure in an area, by applying the results to various cases by assuming the exact values of the parameters.",
keywords = "Cost-benefit analysis, Eco-DRR, Gray infrastructure, Green infrastructure, Uncertainty",
author = "Ayumi Onuma and Takahiro Tsuge",
year = "2018",
month = "1",
day = "1",
doi = "10.1016/j.ijdrr.2018.01.025",
language = "English",
journal = "International Journal of Disaster Risk Reduction",
issn = "2212-4209",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Comparing green infrastructure as ecosystem-based disaster risk reduction with gray infrastructure in terms of costs and benefits under uncertainty

T2 - A theoretical approach

AU - Onuma, Ayumi

AU - Tsuge, Takahiro

PY - 2018/1/1

Y1 - 2018/1/1

N2 - The Eco-DRR (ecosystem-based disaster risk reduction) is attracting attention as infrastructure that substitutes "gray" or built infrastructure, owing to its attractive characteristics such as lower costs of introduction and maintenance, provision of various ecosystem services, and local community development, among others. On the other hand, gray infrastructure is still a central measure of DRR, as there is a comprehensive understanding of its design and functioning against natural hazards. The argument about the use of green infrastructure instead of gray infrastructure in many aspects of DRR raises an important question: under what circumstances is green infrastructure more desirable? This paper uses a theoretical approach to provide an exact condition under which introducing green infrastructure is desirable, taking into consideration the aspect of uncertainty in deriving the optimal size of green infrastructure and the disaster risk (or expected damage). Under optimal green infrastructure, we show an exact level of the population, under which using Eco-DRR is preferable to gray infrastructure, expressed by parameters reflecting the probability of occurrence of hazard, probability of preventing exposure to the hazard, population size, and vulnerability to damage accruing from exposure, as well as costs and benefits of the two infrastructures. Our results provide useful information regarding policy decision-making about whether to adopt gray or green infrastructure in an area, by applying the results to various cases by assuming the exact values of the parameters.

AB - The Eco-DRR (ecosystem-based disaster risk reduction) is attracting attention as infrastructure that substitutes "gray" or built infrastructure, owing to its attractive characteristics such as lower costs of introduction and maintenance, provision of various ecosystem services, and local community development, among others. On the other hand, gray infrastructure is still a central measure of DRR, as there is a comprehensive understanding of its design and functioning against natural hazards. The argument about the use of green infrastructure instead of gray infrastructure in many aspects of DRR raises an important question: under what circumstances is green infrastructure more desirable? This paper uses a theoretical approach to provide an exact condition under which introducing green infrastructure is desirable, taking into consideration the aspect of uncertainty in deriving the optimal size of green infrastructure and the disaster risk (or expected damage). Under optimal green infrastructure, we show an exact level of the population, under which using Eco-DRR is preferable to gray infrastructure, expressed by parameters reflecting the probability of occurrence of hazard, probability of preventing exposure to the hazard, population size, and vulnerability to damage accruing from exposure, as well as costs and benefits of the two infrastructures. Our results provide useful information regarding policy decision-making about whether to adopt gray or green infrastructure in an area, by applying the results to various cases by assuming the exact values of the parameters.

KW - Cost-benefit analysis

KW - Eco-DRR

KW - Gray infrastructure

KW - Green infrastructure

KW - Uncertainty

UR - http://www.scopus.com/inward/record.url?scp=85041903981&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85041903981&partnerID=8YFLogxK

U2 - 10.1016/j.ijdrr.2018.01.025

DO - 10.1016/j.ijdrr.2018.01.025

M3 - Article

JO - International Journal of Disaster Risk Reduction

JF - International Journal of Disaster Risk Reduction

SN - 2212-4209

ER -