Susanne Gustafsson


Picture of Susanne Gustafsson

Research results from Susanne


Heavy truck tyre use and accident risk during winter time

In Sweden, it is today regulated that winter tyres must be used on the drive axle of heavy vehicles (total weight in excess of 3,500 kg) during the winter season period, December 1 to March 31, in case of winter conditions. This requirement is based...

Evaluation of the Swedish alcohol interlock program for drink driving offenders

A permanent alcohol interlock program for drink drivers came into force on 1 January 2012. The Swedish Transport Agency is responsible for the program which applies to all types of driver’s licenses. The program includes both a one-year and a...

A behavioural study of quadbike drivers

As quadbikes are becoming more and more common in Sweden the number of accidents also increases. The first aim of this study was therefore to increase our knowledge of how and where quadbikes are used, the mistakes and violations drivers make and...

Safe accessibility

In this project, rut depth development studies were carried out on road sections subjected to three specific types of traffic safety measure. The measures, implemented through the Swedish Transport Administration’s "Safe accessibility" project,...

Safe accessibility

This report consolidates evaluations performed within the project “Safe accessibility” on behalf of the Swedish Transport Administration. Four different measures implemented on rural roads in Sweden with the aim to increase traffic safety and...

Evaluation of the environmental components of the Swedish driver education

The aim of the study was to measure the effects of the education in environmental friendly driving that is included in the Swedish driver education for license class B on fuel consumption and a selection of driving behaviour that are typical for...

Evaluation of a Swedish alcohol interlock program for drink driving offenders

A permanent alcohol interlock program for drink drivers came into force on 1 January 2012. The Swedish Transport Agency is responsible for the program that applies to all types of driver's licenses. The program includes both a one-year and a...

Participation Rates in a Voluntary Alcohol Interlock Program for Drink Drivers in Sweden

After a long trial period, an alcohol interlock program was permanently introduced in Sweden in 2012. Participation in the program is voluntary and the duration of the program is one or two years, depending on the severity of the drink driving...

The Swedish Joint Action Method against Drink Driving

In Sweden, a joint action method called SMADIT is in use, where the police quickly offer help from the social services or the dependency care and treatment service to suspected drink drivers. One conclusion from this paper is that SMADIT, as an...

Accident involvement of young moped riders

The general aim of this study is to increase knowledge about the processes leading to accidents. This was done with a knowledge review, an in-depth study of moped crashes with serious injuries and an analysis of teenagers’ discussions on the...

A behavioural study of quadbike drivers

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...

Speed reducing audio warnings at road works

A project has been carried out to find methods that effectively decrease drivers’ speeds at road work sites through real-time audio warnings. The project consisted of two parts. First, a survey of existing studies took place. The results show that...

Single bicycle accidents

The objective of this project was to study single bicycle accidents, to see how these can be avoided and how the injuries due to these can be alleviated. The in-depth studies of fatal accidents by the Swedish Traffic Administration, and hospital...

SMADIT ur den misstänkte rattfylleristens perspektiv

SMADIT, Joint action against alcohol and drugs in traffic, is a method where the police offer suspected drunk drivers contact with the social services or the dependency care and treatment service, who can offer a consultation and, if needed,...

Alcohol- and drug-related fatal accidents in Sweden

This conference paper presents an accident study investigating where fatal alcohol- and drug-related accidents occur with respect to traffic environment (i.e., urban versus rural), road type, speed limit, annual average daily traffic flow, and road...

Cyclists’ helmet use in a regional perspective

The objective of the present study was to obtain knowledge about bicycle helmet use and its variations across Sweden. First, data on cyclists’ accidents, injuries and helmet use were studied in terms of regional differences. These data were taken...

Prevalence of alcohol, illicit drugs and psychoactive medicines in killed drivers in four...

Our objective was to determine the presence of psychoactive substances in blood of drivers killed in road crashes in four European countries. Data from 1118 drivers of car and vans, killed between 2006 and 2009, were collected in Finland, Norway,...

Road traffic speeds

In order to achieve the interim target for road safety it is necessary that compliance of speed limits increases at the road network. VTI has been commissioned by the Swedish Transport Administration to analyse major problems and challenges...

Analysis of drink-driving accidents

Minor roads shouldn’t be left unattended by the police when surveying drink-driving and extensive surveillance is needed during nighttime. These are the main conclusions of a VTI study concerning where and when alcohol-related traffic accidents...

Nordic citizens' views on traffic safety

Even though traffic safety is very high in the Nordic countries, there are still too many people who die or are severely injured. The Nordic Road Safety Council conducted a questionnaire survey with the purpose to find differences between member...

Traffic calming measures in new traffic environments and the use of ITS

A literature survey has been conducted regarding international traffic calming measures that could have a potential use in Sweden and other Nordic countries. Focus has been on measures in new traffic environments and ITS (Intelligent Transport...

Drug and medicine prevalence in traffic in Sweden

The prevalence of illicit drugs and medicines in the driving population, i.e. among drivers on the road, was 2.5 per cent between the years 2006 and 2011 in Sweden. The prevalence of alcohol, illicit drugs and medicines among drivers killed in...

Child safety in cars

The National Society for Road Safety, NTF, has conducted an observational survey at 347 preschools comprising 5,000 children aged 0-10 years. The aim of the study was to follow up Swedish laws and recommendations concerning how children are secured...

SMADIT


Impact of Nonresponse and Weighting in a Swedish Survey

Results from travel surveys, together with traffic monitoring programs, serve as a basis for policy decisions and evaluations. Correct interpretation of the survey results is therefore of vital importance, and the impact of different sources of...

Mobility and travel patterns among foreign-born in Swedish traffic environment

The aim of this study was to increase knowledge concerning the situation of foreign-born in the Swedish transportation system and analyze their mobility and travel patterns. Foreign-born are defined as people born in another country than Sweden, but...

The traffic safety situation among foreign born in Sweden

Road traffic crashes are identified as a world wide public health problem. Prognoses by WHO suggest these crashes to constitute the third most common reason for fatalities and disabilities in 2020. However, the crash risk varies from country to...

Child safety in cars

In order to study child safety in cars, international literature was reviewed with respect to road vehicle transportation for children, with the focus being on the age up to 12 years. The review included literature in English and Swedish....