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.



Open seminar with Mistra SAMS international scientific advisory...

Mistra SAMS international scientific advisory panel (ISAP) is visiting Stockholm, and the program will host an open seminar where the panel members will give talks in their area of expertise.

ERPUG 2017

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. 



Vehicle Driver Monitoring: sleepiness and cognitive load

To prevent road crashes it is important to understand driver related contributing factors, which have been suggested to be the critical reason in 94 per cent of crashes. The overall aim of the project Vehicle Driver Monitoring has been to advance the...


Tomas Svensson new director-general

Tomas Svensson was today appointed Director-General of VTI. Tomas has been acting Director-General since January 2017. 


Crash testing bicycles at VTI

For the first time single bicycle crashes have been simulated at the VTI crash safety laboratory.


A case study exploring firefighters’ and municipal officials’ preparedness for electrical vehicles

A VTI-study presents a social perspective on new vehicle technology. It explores the self-reported preparedness of the fire departments (i.e., rescue services) in Sweden’s three largest cities regarding rescue operations involving electrical vehicles (EVs).


Pioneering research on and about bicycles at VTI

Under what circumstances might cyclists lose tyre grip? What actions could then be taken to prevent a crash? VTI is currently developing a theoretical model of the behaviour of bicycle tyres during braking and steering in different situations and on different...


Virtual pedestrians create efficient stations

If more people are to choose sustainable travel, then the public transport stations of the future must be designed so that pedestrians can get where they are going quickly, without congestion or queues. The Swedish Road and Transport Research Institute (VTI)...