Svenska vägtillståndsmått då, nu och i morgon: del 2: nu - år 2005-2009


The Swedish paved road network is, on a yearly basis, monitored by road surface testers in order to supply the road administration with objective condition data .The data is used to measure how well the decided road condition standard is achieved and in the road maintenance planning. The constant demand on the road administration to be more effective motivates the development of suitable and up to date indicators and tools. The management of roads and pavements is a very complex task and requires a comprehensive set of relevant indicators. The development is divided into three periods; 1987-2004, 2005-2009, 2010 and onward. This report covers the second period 2005-2009. The main principle in the development, covering this period has been to create new indicators by using already collected data that either on its own or in a combination forms the new indicator. Focus has been on indicating damage on low volume roads. The new indicators are edge deformation, distance between rut bottoms, rut area and rut width. Other indicators have also been developed to cover safety risks, localized roughness and calculated water area. From previously work macro texture indicated by MPD (Mean Profile Depth) is used to assess sections with risk for low friction at high speed and wet conditions.



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...