Underhåll i egen regi?: metod och databehov för en utvärdering av järnvägsunderhåll


Maintenance of the state-owned railway network in Sweden is currently tendered in competition. However, during 2016, the infrastructure manager Trafikverket (Swedish Transport Administration) was commissioned by the Swedish government to analyze and present appropriate measures to organize and produce rail maintenance in-house. This includes an investigation that is based on an inhouse production of maintenance in at least two geographically defined areas, with the aim to compare it with maintenance tendered in competition. This memorandum describes the method and data needs for an evaluation of whether in-house production is preferable to maintenance tendered in competition or not.

This type of evaluation should measure potential differences in socio-economic efficiency between the organizational alternatives. How in-house maintenance affects costs for production and administration should therefore be determined together with its impact on cost for delays. A challenge is to isolate the effect from differences in preconditions for the maintenance production, such as differences in infrastructure characteristics and in traffic. A comparison should for example consider economies of scale and economies of density as the size of maintenance areas and the traffic volume differs. This implies that key performance indicators such as cost per ton-km is not suitable in this case. An ideal comparison should also consider that possible savings (cost increases) can lead to losses (gains) in the long run, which means that the effects should be assessed over a longer period.



Millions for research into maritime transport and the environment

Maritime transport is a major source of emissions of harmful air pollutants and carbon dioxide. In a new project, a research team from the Swedish National Road and Transport Research Institute (VTI) and the University of Gothenburg has received SEK 6.4...


New research programme for more efficient travel

The Swedish National Road and Transport Research Institute (VTI) is playing an important role in a major new research programme to find radical solutions leading to fewer trips and more efficient travel, along with tools to enable better use of roads and...


Simulator used to practice emergency responses safely

Emergency responses of the police, ambulance, and rescue services are associated with a high risk of accidents, but practicing them in real traffic is neither safe nor permissible. A simulator-based method developed by the Swedish National Road and Transport...


Simulation of cut-in by manually driven vehicles in platooning scenarios

A study in a VTI-driving simulator has showed that a platoon will be able to handle a cut in from a manually driven car. The results of this study have recently been presented at two conferences in Japan.



The five-year anniversary of European Road Profile Users' Group (ERPUG) Forum will take place at Ramboll head quarter, Copenhagen, Denmark October 19-20, 2017.


Self-driving buses in Sweden next year?

A self-driving, fossil-free bus. This idea might become reality through a forthcoming collaborative project involving the Swedish National Road and Transport Research Institute (VTI), Linköping University and several other participants. The project group aim...