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Li Ljungblad

The severity of injuries sustained in a run-off-road accident is largely determined by the roadside area. This area was studied through analyses and a review of the literature.

A study was first made of the possibility of analysing the influence of the roadside area on run-off-road accidents on roads where the roadside area varies. In order that this should be possible, the location of accidents must be correctly determined. A check on whether position fixing is good enough was made by studying accidents to road barriers where the location of these barriers was known. Position fixing was not sufficiently good to be usable.

The accident rate and the injury rate were calculated for run off the road accidents in which the road barrier had been hit and not hit. These rates are twice as large, or larger, for run-off-road accidents in which the road barrier had not been involved. The proportions of earth cuttings, embankments, hazardous roadside areas and forest/no forest were analysed.

The proportions of embankments, hazardous roadside areas and forest/no forest were found significant, although forest/no forest had such little influence that it can be ignored.

Rigid end terminals to safety fences were compared with terminals which sloped to underground anchorages, but no significant difference was found. In most cases, fatalities or severe injuries were not due to the fact that those concerned had collided with the end terminal, but that they also collided with something beyond the fence.

Central barriers are better for preventing head-on accidents than only central reserves. Wide central reserves are better than narrow ones.



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.