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Effects of overtime work and additional resources on project cost and quality

Effects of overtime work and additional resources on project cost and quality Delays are an endemic feature of the construction industry. Typically, when a delay occurs in a project, the project manager often expedites progress through activitycrashing with respect to available float and timecost relationships. An accelerated schedule is thus obtained either by prescribing overtime working hours or by procuring additional resources or a combination of both. However, excessively prolonged overtime work can generate quality problems, such as rework, and additional resources. With this in mind, there is a need for a model to assist project managers with understanding the complex nature of attaining a tradeoff between overtime working and the procurement of additional resources. Thus, using system dynamics modelling, the effects of prolonged overtime work on project cost and quality are examined. To overcome project delays, several options representing various combinations of prescribing overtime work and injecting additional resources are analysed. Utility theory is then applied to determine the most appropriate solution for mitigating project delays. The modelling approach offered in this paper should be particularly useful for large projects and for projects on confined sites where potential cost savings and improved quality standards are likely to be the most significant. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Engineering, Construction and Architectural Management Emerald Publishing

Effects of overtime work and additional resources on project cost and quality

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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0969-9988
DOI
10.1108/eb021146
Publisher site
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Abstract

Delays are an endemic feature of the construction industry. Typically, when a delay occurs in a project, the project manager often expedites progress through activitycrashing with respect to available float and timecost relationships. An accelerated schedule is thus obtained either by prescribing overtime working hours or by procuring additional resources or a combination of both. However, excessively prolonged overtime work can generate quality problems, such as rework, and additional resources. With this in mind, there is a need for a model to assist project managers with understanding the complex nature of attaining a tradeoff between overtime working and the procurement of additional resources. Thus, using system dynamics modelling, the effects of prolonged overtime work on project cost and quality are examined. To overcome project delays, several options representing various combinations of prescribing overtime work and injecting additional resources are analysed. Utility theory is then applied to determine the most appropriate solution for mitigating project delays. The modelling approach offered in this paper should be particularly useful for large projects and for projects on confined sites where potential cost savings and improved quality standards are likely to be the most significant.

Journal

Engineering, Construction and Architectural Management – Emerald Publishing

Published: Mar 1, 2000

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