Optimal construction scheduling: A trade-off approach between project time, cost, and residual flexibility | ||||
| Journal of Engineering Science and Military Technologies | ||||
| Article 4, Volume 7, Issue 2, September 2023, Page 125-134 PDF (1.86 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejmtc.2023.210826.1255 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Mohammed Adel Belal  1; Ahmed Abdelmoaty Elhakeem2
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| 1Construction and Building Engineering Department, College of Engineering and Technology, Arab Academy for Science, Technology, and Maritime Transport, Cairo, Egypt. | ||||
| 2Construction and Building Engineering Department, College of Engineering and Technology, Arab Academy for Science, Technology, and Maritime Transport, Cairo, Egypt | ||||
| Abstract | ||||
| Achieving project scope on time at minimum cost is important for contractors to ensure profitability. Existing models attempt to arrive at optimal schedules, but without considering the delays that occur during construction, which have been statistically proven to occur on most projects. Since these schedules cannot guarantee delays recovery, it cannot be claimed optimal. Hence, this paper attempts to incorporate delay recovery during construction into the optimal schedule generation. Recovering delays that occur over the life of the project construction requires a set of project crashes for the remaining and incomplete activities in the project. Ensuring that the incomplete activities can be crashed at low cost in conjunction with the progress of the project construction represents a proposed solution to such a problem. And it is called in this paper the schedule's residual flexibility. In developing an optimal schedule, a trade-off between the project time, cost, and residual flexibility is considered. | ||||
| Keywords | ||||
| Delay's recovery; schedule optimization; schedule's residual flexibility; TCT | ||||
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