Road dust and air quality in Sweden


During the last years it has become evident that wear particles from road pavements, tires, brakes, and road maintenance strongly contribute to episodes with very high concentration of inhalable particles (PM10) in outdoor air. These episodes normally occur during dry periods in winter and spring when accelerated wear and particle production occurs due to the use of studded tires and winter gritting. A lot of new knowledge about wear particles is needed in order to develop cost-efficient measures to deal with them. A great advantage is the possibility to study aerosols from each source both separately and in different combination in a controlled environment. At VTI (Swedish National Road and Transport Research Institute) a road simulator, previously used for pavement and tire wear studies, is used as a wear particle generator. Measurements of PM10 in the road simulator hall have been used to study the influence of pavement properties, tire type, and vehicle speed on pavement wear. In several cities in Sweden, different winter maintenance chemicals (e.g., calcium magnesium acetate and magnesium chloride) have recently started to be used as dustbinders in springtime in order to abate the dust problem. Also other measures aiming at abating road dust concentrations are under way, including reduced studded tire use and speed reductions. In this paper compilations of results from several recent research projects and field case studies will be presented. Different pavements, tires, winter maintenance abrasive material, as well as measures like reduced studded tire wear and chemical dustbinding are discussed.



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

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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.