Kahandawa, R; Domingo, N; Chawynski, G and Uma, S R (2021) Factors impacting post-earthquake damage repair cost estimations. International Journal of Disaster Resilience in the Built Environment, 12(1), pp. 29-49. ISSN 1759-5916
Abstract
Purpose: Reconstruction processes after an earthquake require estimating repair costs to decide on whether to repair or rebuild. This requires an accurate post-earthquake cost estimation tool. Currently, there are no post-earthquake loss estimation models to estimate repair costs accurately. There are loss assessment tools available, namely, HAZUS, performance assessment calculation tool (PACT), seismic performance and loss assessment tool (SLAT) and seismic performance prediction tool, which have not been specifically used for post-earthquake repair cost estimation. This paper aims to focus on identifying factors that need to be considered when upgrading these tools for post-earthquake repair cost estimation. Design/methodology/approach: The research was conducted as an exploratory study using a literature review, document analysis of the PACT, SLAT and HAZUS software and 18 semi-structured interviews. Findings: The research identified information sources available for estimation and factors to be considered when developing estimations based on the information sources. Research limitations/implications: The data was collected from professionals who were involved mostly in housing repair work in New Zealand. Therefore, impact of these repair work factors might vary in other forms of structures such as civil structures include bridges and the country as a result of varying construction details and standards. Practical implications: The identified factors will be used to improve the loss estimation tools are such as PACT and HAZUS, as well as to develop a post-earthquake repair cost estimation tool. Originality/value: Currently, the identified factors impacting post-earthquake damage repair cost estimations are not considered in loss estimation tools. Factors identified in this research will help to develop a more accurate cost estimation tool for post-earthquake repair work.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | building failure; buildings; disaster cost; earthquakes; New Zealand; post disaster reconstruction; repair work |
| Index terms: | methodology, estimating, housing, building failure, repair, disaster cost, cost estimating, interview, exploratory study, upgrading, literature review, post-disaster reconstruction, earthquake, performance assessment, estimate, New Zealand, reconstruction, estimation, performance prediction, loss estimation, document analysis |
| Subjects: | financial and cost management, data analysis and analytics, data science, construction type, strategic management, data collection methods, reliability engineering, assessment methods, building construction, environmental hazards, post-disaster and reconstruction, performance management, research methods, maintenance engineering, Geography |
| Topics: | Construction Technology, Sustainability, Research Practice, Geographical Context, Engineering Principles, Cost Management, Business Strategy, Quality Management, Human Resources, Urban Studies |
| Descriptive scope: | 5 PCTEA |
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