The most important cost driver is the initial quality. For permanent way this means especially a high quality demand of subgrade. Subgrade quality dominates the behaviour of track. Therefore an excellent substructure quality is a precondition for any optimization.
CITATION STYLE
Tzanakakis, K. (2013). Guiding principles for an effective track. Springer Tracts on Transportation and Traffic, 2, 361–362. https://doi.org/10.1007/978-3-642-36051-0_55
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