Thomas, H R; Mathews, C T and Ward, J G (1986) Learning curve models of construction productivity. Journal of Construction Engineering and Management, 112(2), pp. 245-258. ISSN 0733-9364
Abstract
Current research into learning curve models of construction productivity is presented. Five mathematical models are identified and each of these are used to model unit rates for 65 sets of data. The correlation between predicted and actual unit rates is determined, and on this basis, it is concluded that the best predictor is a cubic model. The often cited straight-line model is only marginally adequate. The validity of the straight-line model is further undermined by showing that the learning rate is not a constant value. Time data for erecting and setting 466 precast concrete floor planks is used to support the conclusion that the straight-line model is not a reliable model for predicting future performance.
| Item Type: | Article |
|---|---|
| Index terms: | unit rate, mathematical model, construction productivity, precast concrete, validity |
| Subjects: | evaluation and assessment methods, mathematical modelling, financial and cost management, building materials, operations management |
| Topics: | Cost Management, Construction Materials, Research Practice, Project Management |
| Descriptive scope: | 2 PA |
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