Causes of variation in construction task starting times and duration

Brad Wambeke, Min Liu, Simon M. Hsiang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Variation in construction task starting time and duration can impact overall productivity performance, yet their root causes often remain unclear. In this research, variation is defined as the difference between what was planned and what actually happened. This paper examines the variation in starting time and the duration of construction tasks while considering 50 productivity factors. The 50 factors were divided into eight categories: prerequisite work, detailed design / working method, labor force, tools and equipment, material and components, work / jobsite conditions, management / supervision / information flow, and weather or external conditions. A nationwide survey involving craft workers, foremen, and project managers was employed and serves to offer valuable insight on the causes and impacts of variation. The findings will help construction project managers and field managers identify the common risk factors, focus on the root causes of variation in planning phase, develop effective strategies to reduce variation, and improve project.

Original languageEnglish (US)
Title of host publicationConstruction Research Congress 2010
Subtitle of host publicationInnovation for Reshaping Construction Practice - Proceedings of the 2010 Construction Research Congress
Pages980-989
Number of pages10
DOIs
StatePublished - 2010
Externally publishedYes
EventConstruction Research Congress 2010: Innovation for Reshaping Construction Practice - Banff, AB, Canada
Duration: May 8 2010May 10 2010

Publication series

NameConstruction Research Congress 2010: Innovation for Reshaping Construction Practice - Proceedings of the 2010 Construction Research Congress

Conference

ConferenceConstruction Research Congress 2010: Innovation for Reshaping Construction Practice
Country/TerritoryCanada
CityBanff, AB
Period5/8/105/10/10

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality
  • Building and Construction

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