Tezel, A and Koskela, L (2023) Off-site construction in highways projects: Management, technical, and technology perspectives from the United Kingdom. Construction Management and Economics, 41(6), pp. 475-499. ISSN 01446193
Abstract
With a rich off-site construction (OSC) experience accumulated over the last two centuries, the United Kingdom (UK) is looking up to OSC to deliver its critical infrastructure projects in the next decade. Highway projects are good fits for OSC with their project characteristics. However, the extant OSC literature for highways is mostly about OSC elements' design performance. Also, the OSC literature is predominantly building sector focused. Addressing this gap, the paper presents the findings of a research project, sponsored by the UK’s National Highways, which aims at understanding what needs to be done to improve the current OSC condition for highways projects in the UK from a management, technical and technological perspective. After a detailed literature review, 20 in-depth interviews with subject experts were conducted. The initial findings were validated through five highways projects as cases and then ranked by two focus groups using the Delphi method. Alongside revealing the current OSC condition, 95 suggestions (43 management-related, 23 technical opportunities, and 29 technology-related) were elicited and ranked by their impact potential. Some of the high-potential suggestions are developing a collaborative OSC decision making framework, a product design mindset, improving OSC digital product libraries, creating mobile OSC factories, and a design options repository. The findings revealed that many OSC challenges identified in the general or building sector focused OSC discussions exist also in the highways sector. It is recommended that the identified high and medium impact potential suggestions are prioritized by practitioners and policy makers to improve the current OSC condition.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | highways; management; off-site construction; technical; technology |
| Index terms: | interview, United Kingdom, option, critical infrastructure, Delphi method, mindset, product design, literature review, decision-making, practitioner, highway construction, off-site construction, product library, focus group |
| Subjects: | innovation and technology management, modelling and simulation, civil engineering, data collection methods, practitioner, health behaviours and lifestyles, data analysis and analytics, Geography, infrastructure and transport systems, decision analysis, building construction |
| Topics: | Construction Technology, Geographical Context, Roles and Professions, Risk Management, Research Practice, Engineering Principles |
| Descriptive scope: | 4 PCEA |
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