Preemptive Multi-mode Resource-Constrained Discrete Time-Cost-Resource Optimization via Non-dominated Sorting Genetic Algorithm

With the current intense competitive circumstance, preemption is taken into consideration in project scheduling gradually, and multi-objective is providing new insights. For the purpose of practical relevance, a preemptive multi -mode resource-constrained discrete time-cost-resource optimization model (P-MRCDTCRO) is presented in this paper. The integrated model provides interruption extension of the MRC-DTCRO model, which allows activity splitting. Accordingly, a modified non-dominated sorting genetic algorithm (NSGA-II) with preemption validity is proposed. A set of non -dominated schedules involving combinatorial optimization of completion time, cost and resource leveling is determined. This paper based on a valid algorithm provides new perspectives in both preemption and multi-objective problem, which is also propitious to decision-making in project construction.