Activity delay patterns in project networks

Activity delay patterns in project networks

Delays in activities completion drive human projects to schedule and cost overruns. It is believed activity delays are the consequence of multiple idiosyncrasies without specific patterns or rules. Here we show that is not the case. Using data for 180 construction project schedules, we demonstrate t...

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Veröffentlicht in:arXiv.org 2024-02
Hauptverfasser: Vazquez, Alexei, Marasinou, Chrysostomos, Kalogridis, Georgios, Ellinas, Christos
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Normal distribution
Physics - Physics and Society
Schedules
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Marasinou, Chrysostomos
Kalogridis, Georgios
Ellinas, Christos
description Delays in activities completion drive human projects to schedule and cost overruns. It is believed activity delays are the consequence of multiple idiosyncrasies without specific patterns or rules. Here we show that is not the case. Using data for 180 construction project schedules, we demonstrate that activity delays satisfy a universal model that we call the law of activity delays. After we correct for delay risk factors, what remains follows a log-normal distribution.
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subjects Normal distribution
Physics - Physics and Society
Schedules
title Activity delay patterns in project networks
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