Top five leading causes of construction site delays: 1. Weather.

Data from CII, the Construction Industry Institute (CII,, IR252-2a – Guide to Activity Analysis and many other leading industry organizations indicate that the top five leading causes of construction site delays are:

  1. Weather;
  2. Finding and setting up equipment;
  3. Overbooked crews;
  4. Lack of insight, and;
  5. General waiting.

CII, based at The University of Texas at Austin, is the research and development center for the capital projects industry.

Harnessing the potential of technology to improve the performance of major projects

Further, data from a KPMG ( Global Construction Survey, “Building a technology advantage, Harnessing the potential of technology to improve the performance of major projects” reveals that only 25% of contractors delivered construction projects within 10% of original contract dates. Complementing the KPMG Global Construction Survey, data from a McKinsey & Company study “Imagining construction’s digital future” highlights that contractors generally deliver large construction and capital projects 20% behind schedule on average.

About the Construction Industry Institute IR252-2a – Guide to Activity Analysis

  • Explains the concept and value of instituting activity analysis productivity improvement programs on construction job-sites.
  • Involves using work sampling to determine project areas in need of improvement.
  • Covers a range of activity categories, e.g., direct work, prep work, tools/equipment, material handling, waiting, travel, and personal.
  • Provides a five-step process for conducting an activity analysis study.
  • Includes blank and sample worksheets and offers advice for customizing improvement programs for particular types of jobsites.

About CII, the Construction Industry Institute

CII, based at The University of Texas at Austin, is a consortium of more than 130 leading owner, engineering-contractor, and supplier firms from both the public and private arenas. These organizations have joined together to enhance the business effectiveness and sustainability of the capital facility life cycle through CII research, related initiatives, and industry alliances

(Source: “IR252-2a – Guide to Activity Analysis.” Construction Industry Institute – Knowledge Base, Construction Industry Institute, 1 July 2010,

(Other sources: KPMG: 2017 Global Construction SurveyKPMG: 2016 Global Construction SurveyThe Construction Industry Institute: 2010 Guide to Activity Analysis and McKinsey & Company: Imagining construction’s digital future)

About WeatherBuild®

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