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This research aims to identify how initial time estimates are developed in megaprojects and assess their accuracy.

Time planning and estimating in megaprojects – why do they fail?

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This research aims to identify how initial time estimates are developed in megaprojects and assess their accuracy.
Conducted a multiple-case study on two state-funded construction projects in Norway.
Analyzed the time estimation processes during the early project phases.
Reviewed the Norwegian Quality Assurance scheme (Concept review, QA1, QA2).
Early time estimates are often rough and lack detailed documentation.
QA2 stage estimates improve but still face uncertainty due to evolving project scope.
Current quality assurance processes tend to prioritize cost over accurate time estimation.

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Multiple-case study explores time estimation in megaprojects, suggesting improvements for accuracy in planning.

Kjærstad et al. (2026) studied this question.

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