Impact of extended overtime on construction labor productivity

Awad S. Hanna, Craig S. Taylor, Kenneth T. Sullivan

Research output: Contribution to journalArticlepeer-review

149 Scopus citations


This paper presents an analysis of the impacts of extended duration overtime on construction labor productivity. The results show a decrease in productivity as the number of hours worked per week increase and/or as project duration increases. The research focuses on labor intensive trades such as the electrical and mechanical trades. Overtime in this research is defined as the hours worked beyond the typical 40 h scheduled per week. The paper begins by presenting the effects of overtime and the need for an updated overtime productivity model. Data for the quantitative analysis was collected from 88 projects located across the United States by means of a questionnaire. Various statistical analysis techniques were performed to develop quantitative relationship curves, including multiple regression, P-value tests, and analysis of variance.

Original languageEnglish (US)
Pages (from-to)734-739
Number of pages6
JournalJournal of Construction Engineering and Management
Issue number6
StatePublished - Jun 2005
Externally publishedYes


  • Construction industry
  • Labor relations
  • Productivity
  • Scheduling

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Industrial relations
  • Strategy and Management


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