Modeling Method-Productivity

Adrian, James J.; Boyer, LeRoy T.

doi:10.1061/jcceaz.0000583

Cited by 26 publications

(10 citation statements)

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“…Drawing on earlier discussion by Adrian and Boyle (1976), the production unit chosen for this research focused on project wide analysis of productivity, to capture a holistic understanding of cassette installation. Creating boundaries around the scope of related onsite work processes was also particularly important to the research design.…”

Section: Methodsmentioning

confidence: 99%

“…For instance, productivity measurement can become meaningless if the input and output units are inconsistent from one project to the next. Emphasis was again placed Adrian and Boyle’s (1976) emphasis on highly visual, repetitive and predictable processes as well as the need to identify a lead resource. Drawing on earlier discussion in the paper, crane cycles and crane time suit these criteria particularly well.…”

Section: Methodsmentioning

confidence: 99%

Section: Principles Surrounding Construction Productivity Measurementmentioning

confidence: 99%

“…Adrian and Boyle’s (1976) work is instructive in terms of guiding the methods used in productivity measurement onsite. For instance, they outline that for a given construction activity there is the need to identify a production unit which can be visually measured; a production cycle relating to the time between consecutive occurrences of the production unit; and a leading resource as required by the production method (Adrian and Boyer, 1976). Further, Adrian and Boyle (1976) suggest it is important to select an appropriately sized production unit in order to get the most out of the collected data: units that are too broad may be of limited use in explaining how to improve productivity; units that are too small (such as the time it takes to lay a single brick) may exclude too many aspects of the overall work process to be informative.…”

Section: Principles Surrounding Construction Productivity Measurementmentioning

confidence: 99%

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Measuring installation productivity in prefabricated timber construction

Forsythe

Sepasgozar

2019

ECAM

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Purpose A problematic issue for new approaches to prefabricated timber construction is simply that there is insufficient productivity measurement data to assist estimation of resource usage, speed onsite and best practice. A lack of information potentially results in increased pricing behaviour which may slow the uptake of prefabricated construction. The purpose of this paper is to measure installation productivity onsite for prefabricated timber floor cassette panels and develop sufficient understanding of the process to suggest improved practices. Design/methodology/approach A time and motion approach, paired with time-lapse photography was used for detailed capture of prefabricated cassette flooring installation processes onsite. An emphasis was placed on work flow around crane cycles from three case study projects. Time and date stamping from 300 crane cycles was used to generate quantitative data and enable statistical analysis. Findings The authors show that crane cycle speed is correlated to productivity including gross and net crane time scenarios. The latter is refined further to differentiate uncontrolled outlying crane cycles from normally distributed data, representing a controlled work process. The results show that the installation productivity rates are between 69.38 and 123.49 m2/crane-hour, based on normally distributed crane cycle times. These rates were 10.8–26.1 per cent higher than the data set inclusive of outlier cycles. Large cassettes also proved to be more productive to place than small. Originality/value The contribution of this research is the focus on cranage as the lead resource and the key unit of measure driving installation productivity (in cassette flooring prefabricated construction), as distinct from past research that focuses on labour and craft-based studies. It provides a different perspective around mechanisation, for resourcing and planning of work flow. Crane cycles provide a relatively easy yet reliably repeatable means for predicting productivity. The time-lapse photographic analysis offers a high degree of detail, accuracy and objectivity not apparent in other productivity studies which serves to enable quantitative benchmarking with other projects.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Principles Surrounding Construction Productivity Measurementmentioning

confidence: 99%

Section: Principles Surrounding Construction Productivity Measurementmentioning

confidence: 99%

See 2 more Smart Citations

Measuring installation productivity in prefabricated timber construction

Forsythe

Sepasgozar

2019

ECAM

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“…Over the years, construction productivity has been the focus of many reported research studies (Abdel‐Razek and Hosny, 1990; Thomas and Sanders, 1991; Abdel‐Razek, 1992; Hosny and Abdel‐Razek, 1992; Abdel‐Razek, 2004). Also many attempts have been made to model construction labor productivity (Adrian and Boyer, 1976; Adrian, 1987; Abdel‐Razek and McCaffer, 1990; Thomas and Zavrski, 1999a, b; Abdel‐Hamid et al , 2004).…”

Section: Benchmarking Construction Productivitymentioning

confidence: 99%

Benchmarking masonry labor productivity

Enshassi¹,

Mohamed

Mayer³

et al. 2007

International Journal of Productivity and Performance Management

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Emerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services. Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation.

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Productivity in Construction

Gibbs¹

2022

Productivity in Construction Projects

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NRC' Institute for Research in Construction i • delighted to be instrumental in bringing thi important gujdebook to the contruction profe ional of Canada. Thi CSCE-NRC project i a good example of lhe kind o.f alliance that i increa ingly important in upport of lhe Canadian construction indu try as it strives to find internationally competitive ways to do bu. ine . The pairing of the counlry' leading ource for construction technol.ogie with the enior national profe ional a ociation in civil engineering ha produced a definitive . tatement on the ubject of productivity, which I commend to all reader .

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Modeling Method-Productivity

Cited by 26 publications

References 0 publications

Measuring installation productivity in prefabricated timber construction

Measuring installation productivity in prefabricated timber construction

Benchmarking masonry labor productivity

Productivity in Construction

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