In this research we combine airport selection, fleet routing and timetable setting to develop an integrated scheduling model. The objective is to maximize operating profit, given the related operating constraints. The model is formulated as a mixed integer program that is characterized as...

In this research, we develop an integrated scheduling model that combines passenger, cargo and combi flight scheduling. We employ network flow techniques to construct the model which is formulated as an integer multiple commodity network flow problem that is characterized as NP-hard. A family of...

In this research, we develop a stochastic-demand cargo container loading plan model with the objective of minimizing the total operating cost, subject to the related operating constraints. The model is formulated as a nonlinear mixed integer program that is characterized as NP-hard. We employ a...

In this research, we develop an integrated model that combines ready mixed concrete (RMC) production scheduling and truck dispatching in the same framework. The model is formulated as a mixed integer network flow problem with side constraints, which is characterized as NP-hard. To solve...

This study develops a planning and a real-time adjustment model to plan courier routes and schedules in an urban area and to adjust the planned routes in actual operations. The stochastic travel time aspect of the problem has been addressed at both the planning stage and the operation stage. A...