A Multi-objective Model for Optimizing Construction Planning of Repetitive Infrastructure Projects

El-Rayes, Khaled; Hyari, Khalied

This paper presents the development of a model for optimizing resource utilization in repetitive infrastructure projects. The model provides the capability of simultaneous minimization of both project duration and work interruptions for construction crews. The model provides in a single run, a set of nondominated solutions that represent the tradeoff between these two objectives. The model incorporates a multiobjective genetic algorithm and scheduling algorithm. The model initially generates a randomly selected set of solutions that evolves to a near optimal set of tradeoff solutions in subsequent generations. Each solution represents a unique scheduling solution that is associated with certain project duration and a number of interruption days for utilized construction crews. As such, the model provides project planners with alternative schedules along with their expected duration and resource utilization efficiency.

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El-Rayes, Khaled / Hyari, Khalied: A Multi-objective Model for Optimizing Construction Planning of Repetitive Infrastructure Projects. 2004.

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