Calculating the Exploitation Costs of Trains in the Spanish Railways

Roanes–Lozano, Eugenio; Hernando, A.; García–Álvarez, Alberto; Mesa, Luis; González-Franco, Ignacio

doi:10.1109/mcse.2013.54

Cited by 8 publications

(7 citation statements)

References 3 publications

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“…", nodo(6, 7), "Algodor", 17, 80): introdata(nodo (5,7), "Villaluenga Y. ", nodo (3,7), "Monfragüe", 202, 155): introdata(nodo(2, 7), "Mirabel", nodo (3,7), "Monfragüe", 14, 155): introdata(nodo(2, 7), "Mirabel", nodo (1,6), "Cáceres", 66, 120): introdata(nodo (1,5), "Aljucén", nodo (1,6), "Cáceres", 66, 120): introdata(nodo (2,5), "Mérida", nodo (1,5), "Aljucén", 6, 100): introdata(nodo (7,7), "Castillejo A. ", nodo (7,8), "Aranjuez", 15, 160):…”

Section: Discussionunclassified

“…introdata(nodo (5,7), "Villaluenga Y. ", nodo (6,8), "Madrid At_i", 32, 155): introdata(nodo (2,8), "Plasencia", nodo (3,7), "Monfragüe", 17, 90):…”

Section: Discussionunclassified

“…introdata(nodo (3,3), "Los Rosales", nodo (3,2), "Sevilla_i", 27, 160): introdata(nodo(3, 1), "Bif. Utrera", nodo (3,2), "Sevilla_i", 15, 160): introdata(nodo(3, 1), "Bif.…”

Section: Discussionmentioning

confidence: 99%

“…As expected, three graphs are initially considered (and must be given as input). As usual, but unlike RutasOptiRed [1,2,4], the vertices of the graphs represent the stations and the edges of the graphs correspond to the sections of the railway network. ese graphs are as follows:…”

Section: E New Approach: Notation and Initial (Given) Graphsmentioning

confidence: 99%

“…e first version can find shortest routes and evaluate with high precision timings for the different pieces of rolling stock of Renfe Operadora (Spanish Railways operator) running on Adif (ADministrador de Infraestructuras Ferroviarias, that is, Spanish Railway Infrastructure Administrator) railway network [1]. e second version adds to this the possibility to detail the electric and Diesel consumes, CO 2 emissions, and costs [2]. An example of application can be found in [3].…”

Section: Introductionmentioning

confidence: 99%

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A New Approach to Shortest Route Finding in a Railway Network with Two Track Gauges and Gauge Changeovers

Almech

Roanes–Lozano

Macías

et al. 2019

Mathematical Problems in Engineering

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The Spanish railway network is a complex one, due to the existence of standard gauge (1,435 mm), Iberian gauge (1,668 mm), and dual gauge (with three rails) subnetworks, as well as connections between the two first subnetworks (at the so-called gauge changeovers), usable by dual gauge trains. Two of the authors developed a package for shortest route finding, and consumes, costs, and emissions calculations in the Spanish railway network (within the frame of two research projects funded by the Fundación de los Ferrocarriles Españoles–Spanish Railways Foundation). Nevertheless, the approach required from a curious specific algorithm to be developed ad hoc. In this paper, a much simpler approach to shortest route finding in such a network, which merges the three subnetworks into two and considers the gauge changeovers as connections between the two new subnetworks, is detailed. This approach allows to use any standard shortest route algorithm. It has been implemented in the computer algebra system Maple and is applied in this paper both to small specific cases and to the whole Spanish railway network.

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Section: Discussionunclassified

“…introdata(nodo (5,7), "Villaluenga Y. ", nodo (6,8), "Madrid At_i", 32, 155): introdata(nodo (2,8), "Plasencia", nodo (3,7), "Monfragüe", 17, 90):…”

Section: Discussionunclassified

“…introdata(nodo (3,3), "Los Rosales", nodo (3,2), "Sevilla_i", 27, 160): introdata(nodo(3, 1), "Bif. Utrera", nodo (3,2), "Sevilla_i", 15, 160): introdata(nodo(3, 1), "Bif.…”

Section: Discussionmentioning

confidence: 99%

Section: E New Approach: Notation and Initial (Given) Graphsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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