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The results obtained from a nationwide survey of architects, engineers, and contractors into the causes of construction industry delays are presented. Seventeen items were examined: weather; labor supply; material shortage; equipment failure; finances; manufactured items; construction mistakes; design changes; foundation conditions; permits; shop drawings; sample approvals; building codes; subcontractors; contracts; jurisdictional disputes; and inspections. Those found to be most important are described in an effort to suggest ways to reduce costly delays.
Baldwin et al. (1971) studied this question.