Tag Archives: emissions

Emissions from vehicles with Euro VI/6-technology

Modern gasoline-fueled personal cars with direct-injection technology exhibiting high emissions of nitrogen oxides  in new laboratory tests. Researchers at Institute of Transport Economics in Norway (TØI) and VTT in Finland have tested various vehicles by applying test-cycles which represent...

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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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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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New Diesel Buses Pollute Less Than New Diesel Cars

The NOx-emissions from a new diesel bus or diesel truck are just one-third as much as from a new diesel passenger car. New emission standards and new technology is changing the image of which vehicles that pollute most in urban traffic. From 2015 EURO 6 emission standards where introduced for...

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Reforms in Vehicle Registration Tax Can Reduce CO2-emissions

The Norwegian Parliaments target to reduce new passenger vehicles average CO2-emission to 85 g/km (type-approval value) in 2020, can be achieved by reforms in the vehicle registration tax. In three out of four scenarios, described in this report from Institute of Transport Economics, the...

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