Hanna, A S; Peterson, P and Lee, M J (2002) Benchmarking productivity indicators for electrical/mechanical projects. Journal of Construction Engineering and Management, 128(4), pp. 331-337. ISSN 0733-9364
Abstract
Labor-intensive industries such as the electrical and mechanical trades are considered high risk due to the high percentage of labor costs. Because of this high risk, it is important for contractors in these industries to closely track labor costs on projects and compare these costs to industry benchmarks. In this paper, benchmark indicators for these industries are established on the basis of actual project data. These benchmarks include the relationship between the percent complete or percent time and cumulative work hours or cost, project size and duration, project size and average man power, project size and peak man power, and average versus peak man power. These relationships were developed using regression analysis. Man power loading charts and the related S-curves were developed from actual project data. The man power loading charts and the related S-curves are useful for resource planning and for tracking progress on a construction project. They can be used to show the cause-and-effect relationship between projects impacted by outside factors and normal labor productivity.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | costs; labor; productivity |
| Index terms: | regression analysis, resource planning, duration, loading, labour productivity, labour cost, s-curve, productivity, benchmarking, construction project, project data |
| Subjects: | project controls, statistical analysis, cost management, economics, performance measurement, management, production management, resource management, construction operations, data collection methods |
| Topics: | Business Strategy, Cost Management, Research Practice, Project Management, Procurement, Quality Management, Time Control, Site Management |
| Descriptive scope: | 4 PCEA |
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