Marginalkostnader för drift och underhåll av det nationella vägnätet: skattningar med data från 2004-–2009


Using observed costs for operation and maintenance of the Swedish national road network, together with information about the amount of traffic and a description about the road network for the period 2004–-2009 cost functions are estimated. From these functions cost elasticity is derived and marginal costs are computed. The results of the estimations from these years are in this study compared to analyses of a similar but older dataset covering the years 1998–-2002. The results are reasonably consistent in some cases while in other cases differences are found between the two datasets. Given the limited amount of empirical results about these issues, the differences are not strikingly large. No obvious contradictions between analyses based on the older and newer dataset are found. Our view is that results from the two datasets in some sense confirm each other, although more data is required to establish more precise estimates of cost elasticity and marginal costs. From the analyses performed in this study the marginal costs can be estimated within an interval corresponding to 5–30 percent of the average costs.

Our estimates show that marginal costs for operation and maintenance of the national road network are lower than the average costs (all elasticity is in the range 0.31–0.85). The cost increase in paved road maintenance resulting from an extra truck kilometer is about

0.21–0.32 Swedish crowns. For gravel roads the corresponding marginal cost is about

1.65–2.72 Swedish crowns. For operation measures the marginal cost is 0 Swedish crowns on paved roads and 0.15–0.24 Swedish crowns per vehicle kilometer on gravel roads. The per vehicle kilometer cost for winter maintenance is estimated to 0.01–0.02 Swedish crowns.



Vision Zero for Sustainable Road Safety in the Baltic Sea Region

The conference Vision Zero for Sustainable Road Safety in the Baltic Sea Region is held i Vilnius, Lithuania. VTI is part of the organisation committé and also one of the speakers.



Users contribute to the development of train simulators

Apart from advanced driving simulators, VTI has developed several variations of train simulators which are used for training, education and research. In recent years, interest has increased drastically among major actors in the railway sector, and VTI has...


VR study to contribute to a better working environment for bus drivers

A study where bus drivers test autonomous driving in a VR environment may contribute to a better working environment with reduced stress on the driver and safer driving.


Non-native plant species spread via transport systems

Researchers at VTI have compiled a report on non-native invasive plant species in Sweden and how they spread via transport systems.


EU-project VIRTUAL: improving road safety with virtual crash tests

Crash tests are used to improve safety on roads. Therefore the EU now funds a research project to develop virtual methods of crash testing. VTI coordinates the project, called VIRTUAL. The project now invites experts interested in Human Body Modeling to join...


EU project protects cyclists and pedestrians

According to the World Health Organisation, more than one quarter of road traffic fatalities in 2010 were pedestrians and cyclists. Every year, about 335,000 unprotected road users die because of traffic accidents, which shows the scale of the problem. The EU...


Swedish organisations in EU project on traffic safety and crash testing

Crash safety testing is one of the tools used to improve safety on roads. The EU is therefore funding a research project that started recently to develop virtual methods of crash testing. The long-term goal is to supplement the physical evaluation of crash...