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Project crashing in the presence of general non-linear activity time reduction costs

Author

Listed:
  • Moustapha Diaby
  • Jose M. Cruz
  • Aaron L. Nsakanda

Abstract

In this paper, we are concerned with the project crashing problem. The functional form we consider for the crashing costs is a negative-exponential form of the amount of capital invested that captures most of the more realistic forms that have been proposed in the literature. We formulate a non-linear optimisation model of the resulting generalised crashing problem, and develop a convex geometric programming approximation of this model. The model can be readily extended to handle situations where it is desired to determine the minimum capital investment needed to crash activities so that the total project duration does not exceed a given time length. Numerical illustrations of the approach are provided.

Suggested Citation

  • Moustapha Diaby & Jose M. Cruz & Aaron L. Nsakanda, 2011. "Project crashing in the presence of general non-linear activity time reduction costs," International Journal of Operational Research, Inderscience Enterprises Ltd, vol. 12(3), pages 318-332.
    • Handle: RePEc:ids:ijores:v:12:y:2011:i:3:p:318-332
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    Citations

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    Cited by:

    1. Cyril Briand & Sandra Ulrich Ngueveu & Přemysl Šůcha, 2017. "Finding an optimal Nash equilibrium to the multi-agent project scheduling problem," Journal of Scheduling, Springer, vol. 20(5), pages 475-491, October.
    2. Osama Mohamed ElSahly & Salma Ahmed & Akmal Abdelfatah, 2023. "Systematic Review of the Time-Cost Optimization Models in Construction Management," Sustainability, MDPI, vol. 15(6), pages 1-20, March.
    3. Manuel A. Nunez & Lynn Kuo & I. Robert Chiang, 2022. "Managing risk-adjusted resource allocation for project time-cost tradeoffs," Annals of Operations Research, Springer, vol. 317(2), pages 717-735, October.

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