Riktlinjer och observationsunderlag för att avgöra om en olycka har orsakats av att föraren somnat eller nästan somnat


Driver sleepiness is one common reason for road crashes. The exact number of crashes is difficult to say. The aim of the present study is to identify criteria and protocols to use in field in order to learn more about driver sleepiness involvement in road crashes. The study has been done in collaboration with the police in Umeå. The police in Linköping and Gothenburg have also contributed during the development of the protocols. The study has three phases: review of earlier studies and experience from other countries, development of a protocol based on the most relevant criteria and finally a pilot test using the protocols at field directly at the road crashes. The result shows that attempts have been done all over the world. However, very few studies have been published or documented in scientific journals. It is more a question of practical experience at best having been documented in technical reports. The most used protocols are based on the work done by the Canadian police. They use two types of checklists; one at road directly at the crash site, one at the office in case the first analysis indicates suspicions that sleepiness has been involved. In the present study the protocol used directly at the crash site was used. The results show that the questions involved in the protocol were easily addressed to the involved drivers. The field study shows problems to motivate the police officers to take their time to use the protocol in field. The reason for this is unknown. One reason could be that this new routine needs time to be settled. The motivation among the police officers was seen to increase during the project. One explanation given was that they were more and more aware of the problem with sleepiness, thanks to the protocols. This will most truly make them more motivated over time.



Cost Benefit Analysis (CBA) workshop in Stockholm

An open seminar and workshop in Stockholm will be held on 25-26 April 2018. The workshop deals with the use of CBA as a basis for decision-making in the public sector. The workshop is organized by, among others, Professor Jan-Eric Nilsson, VTI.



Modal shift for an environmental lift?

Investigations in Sweden and other countries suggest a shift of goods transport from road to rail and waterborne transport to reach environmental and climate objectives. VTI is leading a new project to investigate how the modal shift can contribute and what...


Automation and digitalisation are making rail competitive

Road transport is developing rapidly and its productivity has increased sharply. Rail transport, however, has not developed at the same rate. Automation and digitalisation are essential if rail freight in Europe is to survive.


New research is creating a driverless logistics chain

The research project Born to Drive has come up with a system that allows new cars to move, without a driver, from the production line out to the parking area prior to being transported elsewhere. The vision is to automate the entire logistics chain from...


VTI testing automation in EU project

VTI is leading a series of tests in a major EU project on automated driving. The first driving tests were carried out n a test track in Slovenia in December. The project will focus in part on acceptance among different groups in society, in part on...


Freight transportation on road and rail analysed

Freight transport accounts for a large proportion of the emissions, noise and congestion produced by road traffic. Transporting freight in larger but fewer lorries could reduce the problem. At the same time it might entail freight being diverted from more...


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...