Fyrhjulingsförares beteenden och felhandlingar


As quadbikes are becoming more and more common the number of accidents also increases. The first aim of this project was therefore to increase our knowledge of the accidents whilst the second aim was to increase our knowledge of how and where quadbikes are used, the mistakes and violations that are made and what situations and behaviours drivers consider as risky. The project was divided into two sub-studies. In the first sub-study 51 road traffic accident registered in Strada-police were analyzed and in the second 7 injured drivers (involved in any one of the 51 road accidents registered in Strada) and 22 non-injured drivers were interviewed. The results show that quadbikes are popular vehicles with many capabilities; as tools, as recreational vehicles and as vehicles for transport. Inexperienced drivers’ lack of knowledge, alternatively experienced drivers’ stress and/or carelessness combined with the quadbikes special characteristics; underage drivers; quadbike-driving under the influence of alcohol and excessive speed may however lead to accidents. Without a helmet the consequences of an accident might become more severe. Based on the results of this study, the authors recommend a series of measures to reduce the number of serious quadbike accident.



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...