Author(s): Aysen Ergin; Can Elmar Balas; M. Talat Birgonul; A. C. Yalciner
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Abstract: The construction of hydraulic systems is generally executed in the form of multiple unit construction projects, which require substantial expertise in the field of project management, since the main bottleneck associated with such kind of projects is the accurate planning of construction activities with the inclusion of risk factors, such as risk of damage to the structure during the construction period and also uncertainties related to the design. Due to the above mentioned shortcomings of hydraulic system constructions these projects can not be managed via the usage of existing project planning techniques which are proven to be satisfactory in the other sectors of construction industry. Therefore, a new practical approach which can import the risk of damage into network computations and also capable of computing optimum time cost trade off strategies is essential for the solution of the problem. The primary objective of this research is to investigate the limitations of existing project planning methods and to develop a new methodology suitable for the project management of hydraulic structures, constructed under a certain risk of damage and also in the presence of uncertainties involved in activity durations. To achieve this goal, the Program Evaluation and Review Technique (PERT) has been modified in order to eliminate its bias problems and the method thus obtained is applied to a fishery harbor project. In this study the results obtained from the preliminary applications of this New Network Planning Model to a coastal hydraulic work is presented and compared with the Classical Model results.
Year: 1993