Analysis shows that a new rescheduling strategy improves project outcomes by optimizing crew size and costs.
During the execution of repetitive projects, various uncertainties are often encountered, leading to delays and cost overruns, and effective rescheduling strategies can address these risks. Firstly, the study discusses the rationality and limitations of the “natural rhythm” principle of Line of Balance scheduling in theory and practice and proposes a comprehensive rescheduling strategy that simultaneously changes the size and number of crews, breaking the limitation of the “natural rhythm” on the size of crews. A rescheduling optimization model is constructed on this basis and solved using an exact algorithm. Then, a highway project is taken as an example for calculation analysis. The results show that the comprehensive rescheduling strategy has significant cost advantages in projects of different sizes. This study provides new solution ideas for the repetitive project rescheduling problem to cope with uncertainty disturbances in a more economical way.
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Zhang et al. (2025) studied this question.
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