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Quantifying the interruption impact of activity delays in non-serial repetitive construction projects

机译：量化活动延迟在非连续重复建设项目中的中断影响

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摘要

Available scheduling models for repetitive construction projects can be classified as serial or non-serial. Serial models assume that each repetitive activity is limited to have only one predecessor and one successor, while non-serial models enable repetitive activities to have multi predecessors and successors. Activity delays in serial and non-serial repetitive projects often cause work interruptions for successor activities and project delays. This paper presents the development of a novel scheduling model for both serial and non-serial repetitive construction projects to quantify the impact of any activity delay on interrupting the crew work continuity of its successors. An application example of a repetitive construction project from the literature is analyzed to illustrate the use of the model and its computations. This analysis illustrates the novel capabilities of the model in: (1) calculating a new float to identify the duration that each activity can be delayed without causing interruption in the crew work continuity of any of its successors; and (2) quantifying the impact of unexpected activity delay on interrupting the crew work continuity of its successors. These capabilities enable construction planners to analyze and minimize the impact of unexpected activity delays on interrupting the crew work continuity of all its successors.
机译：重复建设项目的可用调度模型可以归类为串行或非串行。串行模型假设每个重复活动仅限于仅具有一个前身和一个继承者，而非串行模型能够使重复活动具有多前辈和继承人。串行和非串行重复项目中的活动延迟通常会导致继承活动和项目延误的工作中断。本文介绍了串行和非串行重复建设项目的新调度模型的开发，以量化任何活动延迟对中断其继承者工作连续性的影响。分析了文献中重复建设项目的应用示例，以说明模型及其计算的使用。该分析说明了模型的新功能：（1）计算新的浮点以识别每个活动可以延迟的持续时间，而不会导致其任何继承者的船员工作连续性中断; （2）量化意外活动延迟对中断其继任者的工作连续性的影响。这些能力使建筑规划人员能够分析和尽量减少意外活动延误对中断其所有继任者的工作连续性的影响。

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