Alkohol, droger och läkemedel hos omkomna personbilsförare: år 2005–2013

Download

It is well known that drunk drivers constitute a large traffic safety problem and a number of Swedish studies have been conducted about this group of drivers. Much less is known about drivers that are impaired by drugs or medicines and the aim of this study is to improve the knowledge about the presence of such substances in killed drivers of passenger cars. The study is based on 1143 drivers of passenger cars that were killed in accidents during 2005–2013. Only medicines that include narcotic substances are included since other types of drugs supposedly have very limited influence on the ability to drive. Medical substances were found in 8.3 per cent of the drivers and drugs in 6.1 per cent. In comparison, alcohol was prevalent among 21.8 per cent of the drivers. More than one type of substance (alcohol, drug or medicine) were found in 5.4 per cent of the drivers. The following conclusions can be drawn from the study:

A significant difference was found in the number of drivers who were tested positive for drugs or medicines between those who had a BAC-level over 0.2 ‰ (18.5 %) and those who had a BAC-level of 0 (10.5 %). There were no significant difference with respect to drugs and medicines between drivers with low (0.2–0.6‰) and high BAC-level (≥0.6‰).

  • THC (cannabis) is the most prevalent drug among drivers that are also influenced by alcohol, followed by amphetamine. For drivers that are not influenced by alcohol, amphetamine is more common than THC.
  • Opioids are equally common among drivers who have taken only medicines and drivers who have combined medicines and illegal drugs. Sedatives are instead more common among those who also have taken drugs while it is very uncommon to combine illegal drugs and hypnotics.
  • An analysis of background variables show that drivers who had alcohol or drugs in their blood differ from sober drivers in several respects (age, gender and time of accident) while those who had taken medicines were quite similar to the sober drivers.

The three groups also differ from each other, which makes it important to treat the groups separately in case of for example, countermeasures.

MEET US


25-26
Apr

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.

LATEST NEWS


2018-02-19

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...


2018-02-13

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.


2018-02-08

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...


2018-02-05

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...


2018-02-02

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...


2017-11-30

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...