Abstract—Transportation planning is highly essential and important, especially for railway systems. In this paper, we propose an optimization model to determine optimal station locations in a rail network. The objective is to minimize the total transportation cost, which is composed of operation costs and fixed costs. Congestion of the system is considered as the second objective, which is to minimize the longest travel time that a passenger spends on the trip. The problem is formulated as a multi-objective programming model and solved by the epsilon-constraint method. A case study of railway transportation is presented. By using the proposed optimization model, we are able to obtain all non-dominated solution points, which provides alternatives for decision-makers. The results are beneficial and support decision-making in railway transportation planning.
 
Keywords—hub location, railway, transportation planning, optimization, congestion


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