Sadeghi, J; Oghabi, M; Sarvari, H; Sabeti, M S; Kashefi, H; Chan, D W M and Lotfata, A (2023) A hybrid risk assessment approach for assessing the earthquake risks in worn-out urban fabrics: A case study in Iran. International Journal of Disaster Resilience in the Built Environment, 14(2), pp. 193-211. ISSN 1759-5916
Abstract
Purpose: To reduce financial and human losses, managing risks associated with earthquakes is essential in practice. However, in using common risk management methods, experts are often faced with ambiguities that can create profound challenges for risk management. Therefore, it is necessary to develop a logical and straightforward risk assessment model to provide scientific and accurate answers to complex problems. This study aims to recommend an innovative combined method based on the probability-impact (P-I) approach and intuitionistic fuzzy set theory to identify and prioritize the essential earthquake risks associated with worn-out urban fabrics in the context of Iran. Design/methodology/approach: The opinions of 15 experts in the fields of civil engineering and urban construction were gathered during brainstorming sessions. These brainstorming sessions were conducted to determine the probability of risks and the effect of identified risks. After calculating the severity of risks using the P-I approach and converting them to intuitionistic fuzzy sets, the risks were measured and prioritized based on their individual scores. Findings: The study results indicated that risk of damage due to buildings' age and flooding risk had the highest and lowest priorities in causes of financial damage, respectively. Furthermore, the risk of damage due to building quality (demolition) and building age was the most important. The risk of flooding and damage to communication networks has the lowest importance among causes of fatalities in worn-out urban fabrics. Originality/value: The study findings and recommendations can be served as a policy and consultative instrument for the relevant stakeholders in the area of urban management.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | earthquake risks; intuitionistic fuzzy sets; Iran; probability impact; probability impact method; risk assessment; worn-out urban fabrics |
| Index terms: | case study, building age, fuzzy set theory, fuzzy set, earthquake, risk assessment, risk management, urban fabric, fatalities, communication network, flooding, methodology |
| Subjects: | health risk and incident analysis, research methods, urban form and morphology, financial risk, networking, asset management, decision-making and optimization, environmental hazards, data collection methods, risk assessment |
| Topics: | Urban Studies, Digital Applications, Research Practice, Health and Safety, Cost Management, Business Strategy, Sustainability, Risk Management |
| Descriptive scope: | 4 PCTE |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here