Abstract
This paper presents a model for the expansion of transportation networks incorporating specific requirements about population coverage, budget constraints, intermediate goals and origin–destination flows, among others. The model is applicable to the current expansion project of the Spanish high-speed railway network that has been proposed by the Spanish Government under the program Strategic Planning of Infrastructure and Transport (see source [c]). Our approach looks for solutions that may be used as additional information in the decision-making process of any network expansion. We report on the application of this methodology to the Spanish railway network and on a computational experience based on simulated data varying the number of cities and time horizons which proves the efficiency of the proposed algorithm.
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