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It is important that the transition between construction and operational phases be managed properly. It is crucial especially for prestigious mega projects in which large mass of public is served from day one of the real operational phase. Faulty and dysfunctional elements in the completed project systems would not only create interruptions and delays but it could also tarnish the public image of the project. The costs of such consequences could be high and it would be an additional unforeseen cost burden for the project.

Generally mega projects are planned with fast track approach with high pressure to start-up the operations at earliest time. There would be overlaps in the schedules of the last stage construction activities and the activities related to operational preparations. The interference between the two sets of activities might create interruptions, errors, and consequent reworks at both sides. The errors that creep into the operational preparations might be discovered only after the real operational phase, and it might create surprise rework and interruptions. This research attempts to develop a model that can portray the interaction between the workflows at the last stage of construction and the operational preparations. System dynamics approach has been utilized to develop the model. Observations in one of the mega projects in Dubai that recently came in operation have been used to structure the model. Experimental study with the model revealed that the key to avoid the majority of the interface problems is to integrate the operational preparation activities into the construction activities. The client should appreciate the operational preparations …