Process waste analysis for offsite production methods for house construction – A case study of factory wall panel production

Journal article


Ayinla, K., Cheung, F. and Skitmore, M. (2021). Process waste analysis for offsite production methods for house construction – A case study of factory wall panel production. Journal of Construction Engineering and Management. 148 (1). https://doi.org/10.1061/(ASCE)CO.1943-7862.0002219
AuthorsAyinla, K., Cheung, F. and Skitmore, M.
Abstract

There is a growing interest in the use of offsite manufacturing (OSM) in the construction industry disregarding criticisms of lacking real improvement from some offsite approaches adopted by housebuilders as compared to their onsite counterparts. Quantitative performance measures from previous studies are based on conventional onsite methods, with little attention paid to the performance and process improvements derived from various OSM methods.
In response, a case study was conducted based on two OSM methods using standardized and non-standardized processes for the production stage of a factory-manufactured wall panel. Value system analysis and root cause analysis using the 5Whys method was adopted to evaluate possible improvements in terms of process waste. The study reveals that OSM production methods that replicate site arrangements and activities involving significant manual tasks do not necessarily provide a marked improvement from the conventional onsite method. Thus, there is a need to re-evaluate the processes involved to eliminate such embedded process wastes as non-value-added time and cost and to consider automating critical activities. The analysis adopted in the case study provides measurable evidence of the performance gained from having a structured workflow over a non-structured workflow. It also reveals how process wastes are generated in the production process of wall panels offsite.

Keywordslean manufacturing; offsite manufacturing; process waste; process modeling; root cause analysis; 5whys
Year2021
JournalJournal of Construction Engineering and Management
Journal citation148 (1)
PublisherAmerican Society of Civil Engineers (ASCE)
ISSN1943-7862
Digital Object Identifier (DOI)https://doi.org/10.1061/(ASCE)CO.1943-7862.0002219
Publication dates
Print23 Oct 2021
Publication process dates
Accepted21 Sep 2021
Deposited15 Oct 2021
Accepted author manuscript
License
File Access Level
Open
Additional information

This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at [URL/link of abstract in the ASCE Library or Civil Engineering Database].

Permalink -

https://openresearch.lsbu.ac.uk/item/8xyyq

Download files


Accepted author manuscript
Process waste analysis - ASCE-MS-2 - Accepted.pdf
License: CC BY 4.0
File access level: Open

  • 26
    total views
  • 7
    total downloads
  • 0
    views this month
  • 0
    downloads this month

Export as

Related outputs

A Semantic Offsite Construction Digital Twin- Offsite Manufacturing Production Workflow (OPW) Ontology
Ayinla, K., Edlira, V, Cheung, F and Tawil, A, H (2021). A Semantic Offsite Construction Digital Twin- Offsite Manufacturing Production Workflow (OPW) Ontology. Proceedings of the Second International Workshop on Semantic Digital Twins co-located with the 18th Extended Semantic Web Conference (ESWC 2021). Hersonissos, Greece. 06 Jun 2021
Bridging the digital divide gap in BIM technology adoption
Adamu, Z and Ayinla, K. (2018). Bridging the digital divide gap in BIM technology adoption. Engineering, Construction and Architectural Management. 25 (10), pp. 1398-1416. https://doi.org/10.1108/ECAM-05-2017-0091