Category Archives: Environment and Climate

Research Station with a Focus On the Environment

Illustration of Testsite E18
There is only one permanent environmental and road research station in Sweden, situated on the E18 motorway between Västerås and Enköping. VTI is now taking over as the new research coordinator for the station. “Here we can follow up on the various types of environmental effects that...

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Bringing Together Nordic Expertise in Cooperation on Road Dust

City traffic in winter
Road dust can be cleaned up or bound to the road surface, but more knowledge is needed to determine which approach is more effective. Project Nordust is consequently starting as a Nordic cooperative initiative in which researchers from Sweden, Iceland, Finland, and Norway will work together to...

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A CO2-fund for the Norwegian Transport Industry?

Heavy transport makes up a large part of the land-based GHG-emissions from the transport sector in Norway. Every year, 70 000 trucks emit around 2,5 million tons of CO2, and pay in over 1,2 billion NOK in CO2-duties on fuel. A means to accelerate the phasing in of trucks with renewable...

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Properly Placed Vegetation in Cities Improves Air Quality

Vegetatation in city environment.
A city’s vegetation can affect its air quality both positively and negatively. The positive effect is that the total amount of air pollution decreases because the air is being filtered. On the other hand, vegetation in crowded street canyons can degrade the air locally if deployed in such a way...

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Ecodriver: a Major EU Fuel-efficient Driving Project Completed

VTI researcher Johan Olstam
For four years, researchers at the Swedish National Road and Transport Institute (VTI) have been working on Ecodriver, a wide-ranging project under the auspices of the EU’s Seventh Framework Programme involving twelve partners in eight countries who have jointly assessed innovative systems for...

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“Time to Get a Divorce from the Car”

Mobile phone connected to transport modes.
Currently, many in Sweden are getting their driving licences later in life and interest in car ownership is waning. Mobility services that combine multiple types of transport to make daily trips could consequently expand in scope. Presenters at Transportforum shared their visions and...

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Electric Roads Now Being Tested in Real Traffic

Electric roads enable the transport sector to be powered by a broad green-energy base of wind, solar, and hydro power. Having stakeholders and policymakers with the courage to make the commitment, Sweden has an opportunity to be a trailblazer. Tests and demonstrations are underway in the Swedish...

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Major Test: What to Think About When Choosing Winter Tyres

Motorway covered in snow
A major debate is underway as to which winter tyres are best, studded or non-studded. But there is more to making a decision as a consumer than just that question. On ice and snow, non-studded tyres made for Nordic conditions differ greatly from those produced for Central European conditions....

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Emission of Inhalable Particles from Studded Tyre Wear of Road Pavements

Image of studded tyres.
In the following study, the particle generation from seven studded tyres was tested in the VTI road simulator. The results show that increased number of studs and increased stud force increase the emission of inhalable particles significantly. New restrictions on the number of studs on...

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Operational Measures Against PM10 Pollution in Stockholm

The concentrations of inhalable particulate matter (PM10) in the air in several Swedish cities do not meet the EU air quality directive and the Swedish Environmental Quality Standards. Since 2011, intensifying efforts are made to reduce particle levels in Stockholm, where the problems are...

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