Pub Date : 2023-04-07DOI: 10.1108/ijdrbe-10-2022-0103
A. Fathianpour, M. Babaeian Jelodar, S. Wilkinson, B. Evans
Purpose As evacuation is one of the most used response actions to such disasters, it is essential to understand correctly what a resilient evacuation would mean. One critical factor in evacuation resilience is the resilience level of evacuation infrastructures. Also, UN sustainable development has a goal to build resilient infrastructures. This study aims to investigate the characteristics of resilient evacuation infrastructures. Design/methodology/approach A systematic methodology for reviewing articles has been implemented to understand how vulnerable cities can be more prepared, especially for pedestrian evacuation. Findings This study has developed an evacuation scoring system framework for pedestrians to investigate evacuation infrastructure in terms of different resilience features, such as redundancy, safe-to-fail, readiness and capacity. The most practical evacuation system will be estimated. The output of this study can provide insight into a final output to provide the features of a successful pedestrian evacuation system for future policy drafting for infrastructure strategy decision-makers. Practical implications Climate change has made the risks of natural hazards such as tsunamis more intense for humans. Many people in the world live in hazardous environments and are susceptible to disasters. A community must be prepared to mitigate the destructive event and quickly respond to be called resilient. Originality/value This is an original work. The researcher has gone through a deep literature review and developed a cluster showing the features a resilient evacuation infrastructure should have.
{"title":"Resilient evacuation infrastructure; an assessment of resilience toward natural hazards","authors":"A. Fathianpour, M. Babaeian Jelodar, S. Wilkinson, B. Evans","doi":"10.1108/ijdrbe-10-2022-0103","DOIUrl":"https://doi.org/10.1108/ijdrbe-10-2022-0103","url":null,"abstract":"\u0000Purpose\u0000As evacuation is one of the most used response actions to such disasters, it is essential to understand correctly what a resilient evacuation would mean. One critical factor in evacuation resilience is the resilience level of evacuation infrastructures. Also, UN sustainable development has a goal to build resilient infrastructures. This study aims to investigate the characteristics of resilient evacuation infrastructures.\u0000\u0000\u0000Design/methodology/approach\u0000A systematic methodology for reviewing articles has been implemented to understand how vulnerable cities can be more prepared, especially for pedestrian evacuation.\u0000\u0000\u0000Findings\u0000This study has developed an evacuation scoring system framework for pedestrians to investigate evacuation infrastructure in terms of different resilience features, such as redundancy, safe-to-fail, readiness and capacity. The most practical evacuation system will be estimated. The output of this study can provide insight into a final output to provide the features of a successful pedestrian evacuation system for future policy drafting for infrastructure strategy decision-makers.\u0000\u0000\u0000Practical implications\u0000Climate change has made the risks of natural hazards such as tsunamis more intense for humans. Many people in the world live in hazardous environments and are susceptible to disasters. A community must be prepared to mitigate the destructive event and quickly respond to be called resilient.\u0000\u0000\u0000Originality/value\u0000This is an original work. The researcher has gone through a deep literature review and developed a cluster showing the features a resilient evacuation infrastructure should have.\u0000","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48447258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-04DOI: 10.1108/ijdrbe-10-2022-0098
M. Vahanvati, D. McEvoy, U. Iyer-Raniga
Purpose This paper aims to highlight the localised shelter solutions to fulfil adequate and disaster resilient housing needs of urban informal settlers of Honiara, the capital city of Solomon Islands, in a way that is sensitive to their unique challenges, values and aspirations, is gender- and disability-inclusive, and considers housing from the complete lifecycle of a disaster (pre-, during- and post-). Design/methodology/approach Qualitative data was gathered through empirical research through five community workshops at five hotspot settlements, two stakeholder workshops and a stakeholder interview. Semi-structured questions as well as photographs of housing and settlement were used for data collection. With an emphasis on self-recovery, the identified shelter needs were then matched with the roles and responsibilities of the Government to support a process of “assisted” self-preparedness and recovery. Findings The output of the research was the Solomon Islands Shelter Guide. This paper draws from the Guide to present some of the findings. One of the key findings was an emphasis on shelter self-preparedness and self-recovery. However, in order for them to do that, they needed a combination of assistance – technical knowledge, materials and financial support – which is tailored to their settlement’s specific needs and based on hazard damage assessment. While the Guide provides one form of the assistance (i.e. technical), this paper is a call for action from the Solomon Islands Government and shelter responders to fulfil the rest of the community needs for shelter adequacy. Research limitations/implications The paper contributes to existing scholarship on shelter after disasters by adding “assisted” in front of self-recovery, in line with the limited access to resources by the most vulnerable to recover, despite housing being” a human right and definition of adequate housing (UN-Habitat, 2015, 2021), which includes freedom of choice, entitlements and meeting minimum adequacy criteria. Practical implications There are many implications of this research. Since the publication of the Shelter Guide, there is excitement among most humanitarian and development agencies, government authorities and the local communities in Honiara. The Guide forms the first step in contributing to identified needs and strengthening community capacities to self-build, self-recover or self-retrofit one’s house based on their own choice of materials, design, social and economic circumstance. However, it provides one of the three elements identified as needs by the communities, as i) technical guidance, and a kit-of parts for multi-hazard safe housing, ii) financial and economic assistance and iii) a political voice or being supported and heard by the government. The research team are working with the same five urban informal communities in 2022–2023 to develop and operationalise local disaster plans (in partnership with local non-government organisations), capacit
{"title":"Inclusive and resilient shelter guide: accounting for the needs of informal settlements in Solomon Islands","authors":"M. Vahanvati, D. McEvoy, U. Iyer-Raniga","doi":"10.1108/ijdrbe-10-2022-0098","DOIUrl":"https://doi.org/10.1108/ijdrbe-10-2022-0098","url":null,"abstract":"\u0000Purpose\u0000This paper aims to highlight the localised shelter solutions to fulfil adequate and disaster resilient housing needs of urban informal settlers of Honiara, the capital city of Solomon Islands, in a way that is sensitive to their unique challenges, values and aspirations, is gender- and disability-inclusive, and considers housing from the complete lifecycle of a disaster (pre-, during- and post-).\u0000\u0000\u0000Design/methodology/approach\u0000Qualitative data was gathered through empirical research through five community workshops at five hotspot settlements, two stakeholder workshops and a stakeholder interview. Semi-structured questions as well as photographs of housing and settlement were used for data collection. With an emphasis on self-recovery, the identified shelter needs were then matched with the roles and responsibilities of the Government to support a process of “assisted” self-preparedness and recovery.\u0000\u0000\u0000Findings\u0000The output of the research was the Solomon Islands Shelter Guide. This paper draws from the Guide to present some of the findings. One of the key findings was an emphasis on shelter self-preparedness and self-recovery. However, in order for them to do that, they needed a combination of assistance – technical knowledge, materials and financial support – which is tailored to their settlement’s specific needs and based on hazard damage assessment. While the Guide provides one form of the assistance (i.e. technical), this paper is a call for action from the Solomon Islands Government and shelter responders to fulfil the rest of the community needs for shelter adequacy.\u0000\u0000\u0000Research limitations/implications\u0000The paper contributes to existing scholarship on shelter after disasters by adding “assisted” in front of self-recovery, in line with the limited access to resources by the most vulnerable to recover, despite housing being” a human right and definition of adequate housing (UN-Habitat, 2015, 2021), which includes freedom of choice, entitlements and meeting minimum adequacy criteria.\u0000\u0000\u0000Practical implications\u0000There are many implications of this research. Since the publication of the Shelter Guide, there is excitement among most humanitarian and development agencies, government authorities and the local communities in Honiara. The Guide forms the first step in contributing to identified needs and strengthening community capacities to self-build, self-recover or self-retrofit one’s house based on their own choice of materials, design, social and economic circumstance. However, it provides one of the three elements identified as needs by the communities, as i) technical guidance, and a kit-of parts for multi-hazard safe housing, ii) financial and economic assistance and iii) a political voice or being supported and heard by the government. The research team are working with the same five urban informal communities in 2022–2023 to develop and operationalise local disaster plans (in partnership with local non-government organisations), capacit","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46492024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-21DOI: 10.1108/ijdrbe-04-2023-163
A. Lotfata, Ezgi Orhan
{"title":"Guest editorial: Challenges of the (anti) adaptive urbanization in multiple scales","authors":"A. Lotfata, Ezgi Orhan","doi":"10.1108/ijdrbe-04-2023-163","DOIUrl":"https://doi.org/10.1108/ijdrbe-04-2023-163","url":null,"abstract":"","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48078760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-21DOI: 10.1108/ijdrbe-08-2022-0085
Ezekiel Olaoluwa Olatunji, Oluseye A. Adebimpe, V. Oladokun
Purpose Flood resilience is a critical concept in flood risk management (FRM). Meanwhile, flood resilience measurement has become vital for making the business case for investment in FRM. However, information is sparse on measuring the level of resilience of flood-prone communities in Nigeria. Therefore, this study aims to develop a fuzzy logic-based model for measuring the resilience of flood-prone communities towards achieving the United Nations Sustainable Development Goals (SDGs) 11 and 13. Design/methodology/approach This study describes the development of a fuzzy logic-based flood resilience measuring model, drawing on a synthesis of fuzzy logic literature and extant flood resilience. A generalisation of the flood system for a typical Nigerian community was made. It was followed by an identification and characterisation of the variables and parameters of the system based on SDGs 11 and 13. The generated data was transformed into a fuzzy inference system (FIS) using three input community flood resilience dimensions: natural, socio-technical and socio-economic factors (SEF). The model was then validated with primary data obtained from selected flood-prone communities in Ibadan, Southwest Nigeria. Expert opinions were used in rating the input dimensions for the selected communities. Findings In spite of various inputs from experts in the same study area (Apete, Ibadan, Nigeria), the resulting FIS generated consistent resilience indices for various natural, socio-technical and SEF. This approach can strengthen flood resilience measurement at the community level. Originality/value Although previous attempts have been made to measure flood resilience at the individual property level (Oladokun et al., 2017; Adebimpe et al., 2020), this research focuses on measuring flood resilience at the community level by adapting the fuzzy logic approach. The fuzzy logic-based model can be a tool for flood resilience measurement at the community level. It can also be developed further for regional and national level applications.
{"title":"A fuzzy logic approach for measuring flood resilience at community level in Nigeria","authors":"Ezekiel Olaoluwa Olatunji, Oluseye A. Adebimpe, V. Oladokun","doi":"10.1108/ijdrbe-08-2022-0085","DOIUrl":"https://doi.org/10.1108/ijdrbe-08-2022-0085","url":null,"abstract":"\u0000Purpose\u0000Flood resilience is a critical concept in flood risk management (FRM). Meanwhile, flood resilience measurement has become vital for making the business case for investment in FRM. However, information is sparse on measuring the level of resilience of flood-prone communities in Nigeria. Therefore, this study aims to develop a fuzzy logic-based model for measuring the resilience of flood-prone communities towards achieving the United Nations Sustainable Development Goals (SDGs) 11 and 13.\u0000\u0000\u0000Design/methodology/approach\u0000This study describes the development of a fuzzy logic-based flood resilience measuring model, drawing on a synthesis of fuzzy logic literature and extant flood resilience. A generalisation of the flood system for a typical Nigerian community was made. It was followed by an identification and characterisation of the variables and parameters of the system based on SDGs 11 and 13. The generated data was transformed into a fuzzy inference system (FIS) using three input community flood resilience dimensions: natural, socio-technical and socio-economic factors (SEF). The model was then validated with primary data obtained from selected flood-prone communities in Ibadan, Southwest Nigeria. Expert opinions were used in rating the input dimensions for the selected communities.\u0000\u0000\u0000Findings\u0000In spite of various inputs from experts in the same study area (Apete, Ibadan, Nigeria), the resulting FIS generated consistent resilience indices for various natural, socio-technical and SEF. This approach can strengthen flood resilience measurement at the community level.\u0000\u0000\u0000Originality/value\u0000Although previous attempts have been made to measure flood resilience at the individual property level (Oladokun et al., 2017; Adebimpe et al., 2020), this research focuses on measuring flood resilience at the community level by adapting the fuzzy logic approach. The fuzzy logic-based model can be a tool for flood resilience measurement at the community level. It can also be developed further for regional and national level applications.\u0000","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44885015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-28DOI: 10.1108/ijdrbe-05-2022-0048
T. Tam, M. Z. Abdul Rahman, S. Harun, Shamsuddin Shahid, S. Try, M. Jamal, Z. Ismail, K. A. Razak, M. K. Ghani, Yusrin Faiz Abdul Wahab
Purpose The present study aims to evaluate the effect of climate change on the flood hazard potential in the Kelantan River Basin using current and future scenarios. Design/methodology/approach The intensity-duration-frequency (IDF) was used to estimate the current 50- and 100-year return period 24-h design rainfall, and the climate change factor (CCF) was used to compute the future design rainfall. The CCF was calculated from the rainfall projections of two global climate models, CGCM1 and CCSM3, with different pre-processing steps applied to each. The IDF data were used in the rainfall-runoff-inundation model to simulate current and future flood inundation scenarios. Findings The estimated CCF values demonstrate a contrast, whereby each station had a CCF value greater than one for CGCM1, while some stations had a CCF value of less than one for CCSM3. Therefore, CGCM1 projected an aggravation and CCSM3 a reduction of flood hazard for future scenarios. The study reveals that topography plays an essential role in calculating the CCF. Originality/value To the best of the author’s knowledge, this is the first study to examine flood projections in the Kelantan River Basin. It is, therefore, hoped that these results could benefit local managers and authorities by enabling them to make informed decisions regarding flood risk mitigation in a climate change scenario.
{"title":"Flood hazard assessment using design rainfall under climate change scenarios in the Kelantan River Basin, Malaysia","authors":"T. Tam, M. Z. Abdul Rahman, S. Harun, Shamsuddin Shahid, S. Try, M. Jamal, Z. Ismail, K. A. Razak, M. K. Ghani, Yusrin Faiz Abdul Wahab","doi":"10.1108/ijdrbe-05-2022-0048","DOIUrl":"https://doi.org/10.1108/ijdrbe-05-2022-0048","url":null,"abstract":"\u0000Purpose\u0000The present study aims to evaluate the effect of climate change on the flood hazard potential in the Kelantan River Basin using current and future scenarios.\u0000\u0000\u0000Design/methodology/approach\u0000The intensity-duration-frequency (IDF) was used to estimate the current 50- and 100-year return period 24-h design rainfall, and the climate change factor (CCF) was used to compute the future design rainfall. The CCF was calculated from the rainfall projections of two global climate models, CGCM1 and CCSM3, with different pre-processing steps applied to each. The IDF data were used in the rainfall-runoff-inundation model to simulate current and future flood inundation scenarios.\u0000\u0000\u0000Findings\u0000The estimated CCF values demonstrate a contrast, whereby each station had a CCF value greater than one for CGCM1, while some stations had a CCF value of less than one for CCSM3. Therefore, CGCM1 projected an aggravation and CCSM3 a reduction of flood hazard for future scenarios. The study reveals that topography plays an essential role in calculating the CCF.\u0000\u0000\u0000Originality/value\u0000To the best of the author’s knowledge, this is the first study to examine flood projections in the Kelantan River Basin. It is, therefore, hoped that these results could benefit local managers and authorities by enabling them to make informed decisions regarding flood risk mitigation in a climate change scenario.\u0000","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49390897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-13DOI: 10.1108/ijdrbe-04-2022-0032
Eve Bourgeois, P. Baril, Julie-Maude Normandin, Marie-Christine Therrien
Purpose This paper aims to provide scholars with a deep understanding of the field through the identification of strengths and weaknesses in the literature and support decision-makers in the development of new practices in local risk management based on scientific data. The specific question in this review asks: what are the drivers and barriers to local risk management? Design/methodology/approach This paper provides an overview of the scientific literature produce over the past 20 years of the divers and barriers to local risk management. This paper presents a scoping review of peer-reviewed articles published between 2000 and 2019 inclusively in the fields of public policy and public administration. Findings This paper makes three main observations regarding the state of the literature. First, this paper finds that scholars mainly focus on single risk and certain regions of the world. Second, there is multiple approached used by the literature to study risk management at the local level. Third, little attention is given to the political context in which local risk management takes place. Originality/value This paper is a complete literature review of more than 500 peer-reviewed articles published in academic journals regarding risk prevention policies over the past two decades. This paper analyzed the main findings of the current literature to provide a general view of the scholarship and improve the collective understanding of risk management at the local level by providing future research avenues.
{"title":"Scoping review: understanding the barriers and drivers of risk management in local governments","authors":"Eve Bourgeois, P. Baril, Julie-Maude Normandin, Marie-Christine Therrien","doi":"10.1108/ijdrbe-04-2022-0032","DOIUrl":"https://doi.org/10.1108/ijdrbe-04-2022-0032","url":null,"abstract":"\u0000Purpose\u0000This paper aims to provide scholars with a deep understanding of the field through the identification of strengths and weaknesses in the literature and support decision-makers in the development of new practices in local risk management based on scientific data. The specific question in this review asks: what are the drivers and barriers to local risk management?\u0000\u0000\u0000Design/methodology/approach\u0000This paper provides an overview of the scientific literature produce over the past 20 years of the divers and barriers to local risk management. This paper presents a scoping review of peer-reviewed articles published between 2000 and 2019 inclusively in the fields of public policy and public administration.\u0000\u0000\u0000Findings\u0000This paper makes three main observations regarding the state of the literature. First, this paper finds that scholars mainly focus on single risk and certain regions of the world. Second, there is multiple approached used by the literature to study risk management at the local level. Third, little attention is given to the political context in which local risk management takes place.\u0000\u0000\u0000Originality/value\u0000This paper is a complete literature review of more than 500 peer-reviewed articles published in academic journals regarding risk prevention policies over the past two decades. This paper analyzed the main findings of the current literature to provide a general view of the scholarship and improve the collective understanding of risk management at the local level by providing future research avenues.\u0000","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45645956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-03DOI: 10.1108/ijdrbe-07-2022-0069
Sisira Bandara Wanninayake, R. Nianthi, Og Dayarathne Banda
Purpose Floods have been identified as the most frequent and threatening disaster in Sri Lanka amidst an increasing trend of natural and man-made disasters in the world. Subject experts state that disaster risk management should be based on the results of risk assessments, but flood risk management in Sri Lanka is seemingly not based on community-level flood risk assessments. Accordingly, the purpose of this paper is to introduce a community-level flood risk assessment method to the local context of Sri Lanka. Design/methodology/approach The sample (n = 425) for the study was selected using the stratified random sampling method, and the Deduru Oya basin was selected as the study area. The risk assessment model introduced by Bollin et al. (2003) was used for the current study, but with some modifications. Accordingly, 16 variables were selected for the risk assessment. Descriptive data analysis methods were used in the study. Findings Community-level flood risk assessment method was introduced. Variable index, flood risk index and flood risk map were developed for the study area. The Grama Niladari Divisions (GNDs) were grouped into five categories from very high risk to very low risk. The GNDs named Wirakumandaluwa, Thimbilla, Deduru Oya, Bangadeniya and Elivitiya were ranked as the most flood-risk GNDs, respectively. Originality/value This paper produces a flood risk assessment method for the local context. Flood risk in the study area was assessed based on people’s perceptions. Accordingly, the flood risk index and flood risk map for the study area were developed based on the empirical data. GNDs were ranked based on the flood risk index.
在世界上自然灾害和人为灾害日益增加的趋势下，洪水已被确定为斯里兰卡最频繁和最具威胁性的灾害。学科专家指出，灾害风险管理应该基于风险评估的结果，但是斯里兰卡的洪水风险管理似乎不是基于社区一级的洪水风险评估。因此，本文的目的是将社区层面的洪水风险评估方法引入斯里兰卡的当地环境。设计/方法/方法采用分层随机抽样的方法，选取Deduru Oya盆地作为研究区域，样本数为425例。本研究采用Bollin et al.(2003)引入的风险评估模型，但做了一些修改。因此，选取16个变量进行风险评估。本研究采用描述性资料分析方法。研究结果:介绍了社区级洪水风险评估方法。对研究区进行了变量指数、洪水风险指数和洪水风险图的编制。Grama Niladari分部(gds)被分为五类，从非常高的风险到非常低的风险。Wirakumandaluwa、Thimbilla、Deduru Oya、Bangadeniya和Elivitiya分别被评为洪水风险最高的地区。原创性/价值本文提出了一种适合当地环境的洪水风险评估方法。根据人们的认知对研究区域的洪水风险进行了评估。据此，在实证数据的基础上，编制了研究区洪水风险指数和洪水风险图。根据洪水风险指数对gdp进行排名。
{"title":"Development of convenient flood risk assessment method to community level: the case in the Deduru Oya basin in Sri Lanka","authors":"Sisira Bandara Wanninayake, R. Nianthi, Og Dayarathne Banda","doi":"10.1108/ijdrbe-07-2022-0069","DOIUrl":"https://doi.org/10.1108/ijdrbe-07-2022-0069","url":null,"abstract":"\u0000Purpose\u0000Floods have been identified as the most frequent and threatening disaster in Sri Lanka amidst an increasing trend of natural and man-made disasters in the world. Subject experts state that disaster risk management should be based on the results of risk assessments, but flood risk management in Sri Lanka is seemingly not based on community-level flood risk assessments. Accordingly, the purpose of this paper is to introduce a community-level flood risk assessment method to the local context of Sri Lanka.\u0000\u0000\u0000Design/methodology/approach\u0000The sample (n = 425) for the study was selected using the stratified random sampling method, and the Deduru Oya basin was selected as the study area. The risk assessment model introduced by Bollin et al. (2003) was used for the current study, but with some modifications. Accordingly, 16 variables were selected for the risk assessment. Descriptive data analysis methods were used in the study.\u0000\u0000\u0000Findings\u0000Community-level flood risk assessment method was introduced. Variable index, flood risk index and flood risk map were developed for the study area. The Grama Niladari Divisions (GNDs) were grouped into five categories from very high risk to very low risk. The GNDs named Wirakumandaluwa, Thimbilla, Deduru Oya, Bangadeniya and Elivitiya were ranked as the most flood-risk GNDs, respectively.\u0000\u0000\u0000Originality/value\u0000This paper produces a flood risk assessment method for the local context. Flood risk in the study area was assessed based on people’s perceptions. Accordingly, the flood risk index and flood risk map for the study area were developed based on the empirical data. GNDs were ranked based on the flood risk index.\u0000","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44959169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-05DOI: 10.1108/ijdrbe-08-2022-0082
T. Takabatake, Nanami Hasegawa, Suguru Nishigaki
Purpose This study aims to clarify the following research questions: to what extent do people consider natural disaster risks as important for residential selection? what personal demographics and attitudes toward natural disaster risks are associated with the relative importance of natural disasters for residential selection? and to what extent do the associated personal attributes influence the relative importance of natural disasters for residential selection? Design/methodology/approach An internet-based survey was performed to collect 2,000 responses from residents of Osaka Prefecture, Japan, to gauge people’s relative importance of safety against natural disasters regarding residential preference. The obtained results were analysed using two types of statistical analysis, specifically chi-square test and multivariable logistic regression analyses. Findings It was found that 37.3% of the respondents in Osaka Prefecture, Japan, considered the “safety against natural disasters” relatively important when selecting a residential location. The statistical analysis also demonstrated that those having a relatively higher level of disaster awareness and preparedness were 1.41 times more likely to prefer to live in a place that is safer from natural disasters. Thus, it was suggested that disaster education aimed at raising the level of people’s disaster awareness could be effective to increase the number of people who choose to live in a safer place from natural disasters. Originality/value Living in an area that is safer from natural disasters can effectively minimize human and property damage. Recently, several measures have been taken in Japan to guide people to live in a safer place. The clarification of the extent to which people consider natural disaster risks as important for residential selection and the understanding of the categories of the people who are likely to do so is important to develop more effective natural disaster measures; however, there has been less attention on such investigation. Therefore, this study conducted an internet-based survey and examined it.
{"title":"Relative importance of safety against natural disasters for residential selection: a case study at Osaka prefecture, Japan","authors":"T. Takabatake, Nanami Hasegawa, Suguru Nishigaki","doi":"10.1108/ijdrbe-08-2022-0082","DOIUrl":"https://doi.org/10.1108/ijdrbe-08-2022-0082","url":null,"abstract":"\u0000Purpose\u0000This study aims to clarify the following research questions: to what extent do people consider natural disaster risks as important for residential selection? what personal demographics and attitudes toward natural disaster risks are associated with the relative importance of natural disasters for residential selection? and to what extent do the associated personal attributes influence the relative importance of natural disasters for residential selection?\u0000\u0000\u0000Design/methodology/approach\u0000An internet-based survey was performed to collect 2,000 responses from residents of Osaka Prefecture, Japan, to gauge people’s relative importance of safety against natural disasters regarding residential preference. The obtained results were analysed using two types of statistical analysis, specifically chi-square test and multivariable logistic regression analyses.\u0000\u0000\u0000Findings\u0000It was found that 37.3% of the respondents in Osaka Prefecture, Japan, considered the “safety against natural disasters” relatively important when selecting a residential location. The statistical analysis also demonstrated that those having a relatively higher level of disaster awareness and preparedness were 1.41 times more likely to prefer to live in a place that is safer from natural disasters. Thus, it was suggested that disaster education aimed at raising the level of people’s disaster awareness could be effective to increase the number of people who choose to live in a safer place from natural disasters.\u0000\u0000\u0000Originality/value\u0000Living in an area that is safer from natural disasters can effectively minimize human and property damage. Recently, several measures have been taken in Japan to guide people to live in a safer place. The clarification of the extent to which people consider natural disaster risks as important for residential selection and the understanding of the categories of the people who are likely to do so is important to develop more effective natural disaster measures; however, there has been less attention on such investigation. Therefore, this study conducted an internet-based survey and examined it.\u0000","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2023-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44180980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-09DOI: 10.1108/ijdrbe-05-2022-0049
Merve Cerrahoğlu, F. Maden
Purpose The most important need after natural disasters is the sheltering. However, most of the existing temporary shelters do not meet all requirements for long-term use and not provide adequate flexibility within the space. This paper aims to develop a transitional postdisaster shelter transforming from a closed shape to an expanded form in response to changing functional and spatial needs of disaster victims. The study also proposes alternative unit combinations for various functions, and settlement layouts to create a comfortable living environment for occupants. Design/methodology/approach The research methodology is based on theoretical and design frameworks which requires inductive and deductive approaches. Forming the background of the study, the theoretical framework consists of four parts which are literature review on temporary shelters presenting state-of-the-art; determination of design guidelines and strategies based on shelter standards; identification of technical requirements; and analysis of existing temporary shelters. Having three parts, the design framework includes design of transformable transitional shelter based on three-dimensional modeling, creation of different unit combinations to be used for various purposes and development of settlement layouts as case studies. Findings The analysis conducted in this study demonstrates that most of the existing temporary shelters have limited geometric configurations and major problems in terms of their performance, transportation and storage. On the other hand, the transformable shelter proposed by the authors can provide form and spatial flexibilities thanks to its expansion properties, occupy less space for transportation, easily be transported to any desired location in its compact state and be customized according to user needs. Several units can be combined either to serve larger families or to be used for different functions. Originality/value This paper contributes to the literature as presenting not only a theoretical framework on temporary shelters but also a design framework on transformable shelter design for the ones who are willing to develop similar transformable shelters based on the determined guidelines, strategies and requirements.
{"title":"Design of transformable transitional shelter for post disaster relief","authors":"Merve Cerrahoğlu, F. Maden","doi":"10.1108/ijdrbe-05-2022-0049","DOIUrl":"https://doi.org/10.1108/ijdrbe-05-2022-0049","url":null,"abstract":"\u0000Purpose\u0000The most important need after natural disasters is the sheltering. However, most of the existing temporary shelters do not meet all requirements for long-term use and not provide adequate flexibility within the space. This paper aims to develop a transitional postdisaster shelter transforming from a closed shape to an expanded form in response to changing functional and spatial needs of disaster victims. The study also proposes alternative unit combinations for various functions, and settlement layouts to create a comfortable living environment for occupants.\u0000\u0000\u0000Design/methodology/approach\u0000The research methodology is based on theoretical and design frameworks which requires inductive and deductive approaches. Forming the background of the study, the theoretical framework consists of four parts which are literature review on temporary shelters presenting state-of-the-art; determination of design guidelines and strategies based on shelter standards; identification of technical requirements; and analysis of existing temporary shelters. Having three parts, the design framework includes design of transformable transitional shelter based on three-dimensional modeling, creation of different unit combinations to be used for various purposes and development of settlement layouts as case studies.\u0000\u0000\u0000Findings\u0000The analysis conducted in this study demonstrates that most of the existing temporary shelters have limited geometric configurations and major problems in terms of their performance, transportation and storage. On the other hand, the transformable shelter proposed by the authors can provide form and spatial flexibilities thanks to its expansion properties, occupy less space for transportation, easily be transported to any desired location in its compact state and be customized according to user needs. Several units can be combined either to serve larger families or to be used for different functions.\u0000\u0000\u0000Originality/value\u0000This paper contributes to the literature as presenting not only a theoretical framework on temporary shelters but also a design framework on transformable shelter design for the ones who are willing to develop similar transformable shelters based on the determined guidelines, strategies and requirements.\u0000","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47097974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-11-09DOI: 10.1108/ijdrbe-11-2021-0155
Mukesh M.S., Y. Katpatal, D. Londhe
Purpose Recently, the serviceability of the transportation infrastructure in urban areas has become crucial. Any impact of the hazardous conditions on the urban road network causes significant disruption to the functioning of the urban region, making the city’s resilience a point of concern. Thereby, the purpose of the study is to examine the city’s recovery capacity to absorb the impacts of adverse events like urban floods. Design/methodology/approach This study examines the road network resilience for an urban flood event for zones proposed by the Municipal Corporation to develop multiple central business districts. This study proposes a novel approach to measure the resilience of road networks in an urban region under floods caused due to heavy rainfall. A novel Road Network Resilience Index (RNRI) based on the serviceability of the road network during floods is proposed, estimated using Analytic Hierarchy Process - Multiple Criteria Evaluation (AHP-MCE) approaches by using the change in street centrality, impervious area and road network density. This study examines and analyses the resilience of road networks in two conditions: flood and nonflood conditions. Resilience was estimated for both the conditions at the city level and the decentralized zone level. Findings Based on RNRI values, this study identifies zones having a lower or higher resilience index. The central, southern and eastern zones have lower road network resilience and western and northern zones have high road network resilience. Practical implications The proposed methodology can be used to increase road network resilience within the city under flood conditions. Originality/value The previous literature on road network resilience concentrates on the physical properties of roads after flood events. This study demonstrates the use of nonstructural measures to improve the resilience of the road network by innovatively using the AHP-MCE approach and street centrality to measure the resilience of the road network.
{"title":"Measurement of city road network resilience in hazardous flood events","authors":"Mukesh M.S., Y. Katpatal, D. Londhe","doi":"10.1108/ijdrbe-11-2021-0155","DOIUrl":"https://doi.org/10.1108/ijdrbe-11-2021-0155","url":null,"abstract":"\u0000Purpose\u0000Recently, the serviceability of the transportation infrastructure in urban areas has become crucial. Any impact of the hazardous conditions on the urban road network causes significant disruption to the functioning of the urban region, making the city’s resilience a point of concern. Thereby, the purpose of the study is to examine the city’s recovery capacity to absorb the impacts of adverse events like urban floods.\u0000\u0000\u0000Design/methodology/approach\u0000This study examines the road network resilience for an urban flood event for zones proposed by the Municipal Corporation to develop multiple central business districts. This study proposes a novel approach to measure the resilience of road networks in an urban region under floods caused due to heavy rainfall. A novel Road Network Resilience Index (RNRI) based on the serviceability of the road network during floods is proposed, estimated using Analytic Hierarchy Process - Multiple Criteria Evaluation (AHP-MCE) approaches by using the change in street centrality, impervious area and road network density. This study examines and analyses the resilience of road networks in two conditions: flood and nonflood conditions. Resilience was estimated for both the conditions at the city level and the decentralized zone level.\u0000\u0000\u0000Findings\u0000Based on RNRI values, this study identifies zones having a lower or higher resilience index. The central, southern and eastern zones have lower road network resilience and western and northern zones have high road network resilience.\u0000\u0000\u0000Practical implications\u0000The proposed methodology can be used to increase road network resilience within the city under flood conditions.\u0000\u0000\u0000Originality/value\u0000The previous literature on road network resilience concentrates on the physical properties of roads after flood events. This study demonstrates the use of nonstructural measures to improve the resilience of the road network by innovatively using the AHP-MCE approach and street centrality to measure the resilience of the road network.\u0000","PeriodicalId":45983,"journal":{"name":"International Journal of Disaster Resilience in the Built Environment","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2022-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42045199","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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