In the line-of-balance (LOB) scheduling, it is necessary that all of the activities are progressed in equal rate of production to establish the schedule as a balanced diagram. In many construction projects, there are one or more activities which progress faster than the other activities. In this paper, interruption of activities with higher production rates and allocation of resources to other activities to decrease the duration of the project is studied. Moreover, the algorithm for calculation of the number of required interruptions, optimal time, project unit for applying interruptions, and the duration of each interruption into suitable activities which the project manager can start earlier is introduced.
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