Optimization of air freight network considering the time window of customer

In order to effectively reduce the air transport cost of express enterprises and meet the time window requirements of customer, based on three kinds of air freight modes-the direct transport by aircraft belly space, transfer transportation by aircraft belly space and all-cargo aircraft transfer transportation, an air freight network optimization model with minimum total transportation cost considering timeliness is established. Moreover, a hybrid genetic algorithm is designed to solve the model to choose one of the most economical and efficient transport plans. Finally, a numerical example is provided to illustrate the application of the proposed model.