Nuvarande förutsättningar och försök med längre godståg mellan Gävle och Malmö

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Johanna Törnquist Krasemann

The second sub-project of ELVIS demonstration project for longer and heavier freight trains aims to analyze the actual conditions for the use of longer trains and to evaluate the trial where a 730 metres long demonstration train (instead of a maximum of 630 metres) was operating between Gävle and Malmö 6–7 October 2012. One conclusion is that it is technically possible to operate trains that are longer than 630 metres but there are organizational barriers. To use the infrastructure more efficient, the project proposes the use of dedicated channels for longer freight trains in specific corridors as a temporary solution. The comparison of the demonstration train with up to 630 metres reference trains was hampered of that the central data describing the reference trains were difficult to access and partially uncertain. An important conclusion is that a better mapping of the current situation is needed in order to make reliable quantitative analysis. It was possible to compile information about the electricity consumption per gross tonne-kilometer of the demonstration train and the reference trains. However, it is difficult to quantify how the length of the train, the weight of the train, the speed, the number of stops etc. influence the electricity consumption one by one – both due to the quality of the data set and the fact that there is a quite large variation in electricity consumption per gross tonne-kilometer regardless which of the factors is studied. The impact of the topography and the length and weight of the train on the electricity consumption per gross tonne-kilometer can however be shown. The electricity consumption per gross tonne-kilometer of the demonstration train is generally lower than the consumption of the reference trains. It is possible, however, to conclude that electricity consumption per gross tonne-kilometer is generally not higher for longer trains, but it is impossible to say that consumption is generally lower. The literature and discussions with firms indicate that industry can reduce transport costs by using longer freight trains. However, economies of scale can only be exploited if locomotives traction capacity is not fully utilized today. It is obvious that the access to the rail infrastructure determine which train lengths and weights are commercially interesting. The electricity consumption per gross tonne-kilometer can possibly also reduced by using longer trains, but this cannot be stated without further notice. Running longer freight trains on a larger scale requires investments in tracks, terminals etc. The rough socio-economic calculations for the 750 metre long trains that have been carried out so far indicate that the investment costs are relatively modest. Though there is a need for analyzes for various train lengths as it is not obvious that the minimum length of 750 metres that is required for the TEN-T core network from 2030 is optimal.

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