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Streamlined project time-cost tradeoff optimization methodology: Algorithm, automation, and application
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DOI：10.1016/j.autcon.2021.104002.png)
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Abstract
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The existence of multiple optimum solutions in project Time-Cost Tradeoff (TCT) optimization has not been seriously researched, while the demand on computing time and resources considering project network models of practical size has not been benchmarked. To a certain degree, this has accounted for (1) the lack of commercial software in the market to enable TCT optimization in project management and (2) the absence of applications of TCT optimization in practice. This research proposes a streamlined TCT optimization methodology to generate the first order derivative function of project direct cost against project duration and identify the quantity and position of minimum solution(s) of total project cost. An Excel-based program was prototyped to facilitate validation and computing performance benchmarking using (1) textbook examples found in the literature and (2) simulated test-bed projects with practical complexity. In conclusion, this research opens the window of opportunity for implementing TCT optimization in practice.
Keywords:
Time-cost tradeoff
Optimization
Integer programming
Path-float
Path length
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11.5
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4.2W
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