Simulatorbaserad testmetod: bedömning av körförmåga hos individer med synfältsbortfall


This project is a method project in its proper sense. The aim of the project was to develop a method to assess if individuals with visual field loss can drive in a safe manner. The starting point for the project was that the method should be a simulator based method because essentially two criteria were desirable. First, it was important that several events occurred systematically and that events were possible to evaluate, i.e., that it was possible to discriminate between good and bad performances. Second, these events should be the same events for all individuals that was to be tested. The aim was to develop a method that optimizes the validity and reliability with respect to testing of each and one of unique individuals. The testing procedure of the individual level was important because the method would not be used for research purposes but primarily to determine whether a unique individual with visual field loss can drive in a safe manner. Several details that can go wrong during an ordinary experiment, when running subjects, have a minimal impact concerning the experiment because it is most often possible to complement the experimental data collection with another subject. This is not an option for this project.

These criteria and points raised above collectively resulted in the method developed. When an individual completed the scenario developed, a test protocol was generated (after a lot of work). This protocol reveals how the individual performed during the 37 (+2) events (and related measures) based on a safety margin perspective. To support the rater with the assessment of a subject a) data from a reference group (over 100 individuals) and b) a developed test protocol (with critical thresholds for different measurements) were used. The assessment was carried out by two independent raters. If the raters agreed no further judgments were performed. If the raters disagreed a third rater assessed the subjects’ performance. The purpose of the test protocol is that those individuals who want to use the test protocol results as a basis for an exemption application, can do so. It is still the Transport Agency, which decides on an exemption cases.



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.



Ulf Sandberg has been presented with the TTI Lifetime Achievement Award 2018

VTI’s Senior Research Leader Ulf Sandberg has been presented with the TTI Lifetime Achievement Award 2018 for his work on research into tyres and road surface.


Steps need to be taken to increase traffic safety of automated cars

Several steps are necessary to ensure that automated and connected cars will lead to increased traffic safety – everything from ensuring that technology takes vulnerable road users into account, to new forms of driver training. This has emerged in a position...


FALCON examines challenges in the transport sector

VTI is one of several important partners in the major FALCON project*, whose purpose is to create knowledge and insight regarding the transport sector. In an initial subproject, VTI has produced a manual on transport, logistics and multimodality.


VTI joined research cooperation in China

In December 2017 VTI became a member of China-Sweden Research Centre for Traffic Safety (CTS).


Swedish German research collaboration on Electric Road Systems

The project “Swedish-German research collaboration on Electric Road Systems” (CollERS) has now officially started. The goal of the project is to increase the common knowledge around Electric Road Systems by cooperation between Germany and Sweden and to...


Electric Road Systems Conference 2018

After a successful first conference in June 2017, the Swedish research and innovation platform for electric roads is arranging the second dedicated International Conference on Electric Road Systems (ERS) June 13th and 14th 2018.