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- W2948013595 abstract "PurposeConstruction projects operate within a risky environment. It materialises as delays, which must be prevented or mitigated to avoid becoming amplified into late completion. But previous research has largely ignored how structural complexity of the underlying network schedules shapes their resilience.Design/Methodology/ApproachThis research hypothesizes that schedule structure plays a vital role in its ability to absorb or propagate delays. The impact of activity-level local risk factors is represented via activity duration distributions, i.e. probability density functions. The impact of project-level global risk factors is more challenging because they arise via interactions between multiple activities.FindingsModelling resilience to local and global risk factors can employ a matrix approach. Simulation shows that delay amplification depends on local structure, not global complexity.Research Limitations/ImplicationsCriticality had merely relied upon a single deterministic analysis of a network schedule to categorize activities as having zero or nonzero float from fixed relative duration a dependency structure. Repeated probabilistic analysis with sampled durations gives criticality indices of activities. This research limits itself to network schedules with point-wise relations between activities.Practical ImplicationsManagers can use this knowledge to develop schedules that protect their expected project duration with a suitable structural complexity.Originality/ValueContributions to the body of knowledge are as follows: It converts the dependency structure into a reachability matrix and adds a correlation matrix to capture how the predecessor performance may impact its successors. It correlates criticality of activities with structural complexity indices. And it ranks activities objectively by their cruciality, i.e. potential delay propagation." @default.
- W2948013595 created "2019-06-07" @default.
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- W2948013595 date "2019-05-01" @default.
- W2948013595 modified "2023-09-27" @default.
- W2948013595 title "Activity Cruciality as Measure of Network Schedule Structure Resilience" @default.
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- W2948013595 doi "https://doi.org/10.1108/s2516-285320190000002027" @default.
- W2948013595 hasPublicationYear "2019" @default.
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