Shen, K; Li, X; Cao, X and Zhihui, Z (2021) Research on the rework risk core tasks in prefabricated construction in China. Engineering, Construction and Architectural Management, 28(10), pp. 3299-3321. ISSN 0969-9988
Abstract
Purpose: The purpose of this paper is to assess the process of prefabricated construction (PC) and analyze the impacts of rework risk to identify the core tasks for which the rework risk has severe impacts. Design/methodology/approach: The methods consist of a literature review, expert interviews, a questionnaire survey and a rework risk function. The expert interviews and questionnaire survey were administered to experts in the entire process of PC from the dimensions of rework frequency, rework cost and rework time. Descriptive and inferential statistics were employed to analyze the data. The rework risk function was based on the loss expectancy method. Findings: There are 13 core tasks that have higher impacts than the average level. The core tasks in the design stage account for 100% of the tasks in the stage, those in the manufacturing stage account for 20% and those in the construction stage account for 23.1%. Compared with the other stages, the design stage is characterized by significantly more frequent rework, higher rework costs and longer rework time. The manufacturing stage is characterized by significantly higher rework costs than the construction stage. The manufacturing stage and construction stage are co-reliant, and both are impacted by the design stage. Practical implications: The findings provide stakeholders with a clear understanding of the core tasks of the PC process and represent a method for identifying core tasks. Stakeholders can learn from this to focus on the core tasks to reduce rework risk and manage the process with the priority of PC rework management based on the following order: design > manufacturing > construction. The approach is suitable for core task identification in other areas. Originality/value: This research provides insight into rework risk management and provides a novel analysis method for rework risk and PC management from the perspective of the construction process. The findings are valuable for supporting stakeholders in making effective construction plans to reduce the impacts of rework risk in PC and provide a reference for future research on process optimization.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | core task; cost; frequency; prefabricated construction; rework risk; time |
| Index terms: | risk management, dimension, statistics, methodology, construction process, questionnaire, design stage, China, interview, literature review, rework, survey |
| Subjects: | operations management, professional practice, data analysis and analytics, health monitoring assessment and metrics, data collection methods, risk assessment, mathematical modelling, building construction, research methods, Geography |
| Topics: | Site Management, Design Practice, Risk Management, Research Practice, Geographical Context, Project Management, Health and Safety |
| Descriptive scope: | 5 PCTEA |
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