Category Archives: Environment and Climate

How can high levels of particles in tunnels be reduced?

Traffic jam in a road tunnel.
A new study from the National Road and Transport Research Institute (VTI) demonstrates that older types of trains produce more particulate emissions in railroad tunnels than do newer ones. Dust binding, improved paving, and reduced studded tyre use could reduce coarse particle levels in road...

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Nordic capitals are prioritising pedestrians

Street with people in Stockholm
Helsinki, Stockholm and Copenhagen are all working strategically with pedestrian prioritising and urban life. Car free city centres are high on the political agenda in many Nordic cities and in a range of European countries. New policy measures are applied and in many cases, significant...

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Fossil-free fuels make a clear leap forward

Each year the Swedish National Road and Transport Research Institute (VTI) organizes the Nordic region’s largest annual conference for the transport sector. For three years running there has been a session on Transportforum dealing with the development of new infrastructure for the fossil-free...

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Sustainability a long way off for aviation

Jumbo jet in level flight high above clouds
It is hardly a secret that aviation must reduce its negative impact on the climate. This will require either less air travel or a breakthrough in sustainable aviation fuels. Emissions per flight are decreasing, thanks to more efficient engines, lighter aircraft, more seats per aircraft, and...

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Trend towards fewer parking spaces

Parking space
Research demonstrates that it is possible to predict the need for parking in connection with renovations and new construction. At the same time, there is a trend towards cities, for example, eliminating street parking and instead using the land for cycling paths, as is the case in Stockholm and...

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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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