Category Archives: Maintenance

New research platform for better roads – and more

Posted on September 25, 2024 by nradmin
VTI Mobile Research Platform, MRP, is one of the world's most advanced measuring vehicles, which will enable safer traffic and more sustainable transport in the future. It can also be used for completely different tasks. VTI Mobile Research Platform. Photo: VTI. The new research platform...

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Building bridges faster

Posted on November 7, 2023 by nradmin
A new connection between a precast abutment wall and a cast-in-place foundation was developed for rapid construction of bridge abutments. The connection was developed at the University of Iceland with assistance provided by structural designers, a precast concrete fabricator, and the Icelandic...

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VTI’s measurements make airfields safe

Posted on April 12, 2023 by nradmin
Håkan Carlsson is the laboratory manager for measurement technology and workshop at VTI. His role gives him responsibility for the activities, and he normally doesn't have time to take part in the practical work. However, there is one exception, and that is proof load testing for airfield bearing...

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The risk of road accidents increases as more and more roads become polished

Posted on February 21, 2023 by nradmin
In recent years, there have been a number of serious road accidents due to motorists skidding off the road. The reason is believed to be that the country's roads are becoming increasingly smooth. VTI has investigated the cause of the problem in a pilot study. New designs of studded tyres, a rise...

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Comparison between IRI from connected cars and IRI from profilometer

Posted on September 13, 2022 by nradmin
Olle Eriksson, Peter Andrén and Thomas Lundberg, VTI, have carried out an evaluation of roughness measurements from connected vehicles. The quality of the roughness data is determined by comparing the estimated IRI (International Roughness Index) from the connected vehicles with the IRI measured...

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Megatrends are shaping future streets

Posted on August 20, 2021 by nradmin
The streets of the future have high demands to meet, in terms of both technical design and construction. Researchers from the Swedish National Road and Transport Research Institute (VTI) are looking for smart solutions to meet four megatrends: Urbanisation, digitalisation, electrification and...

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TRA VISIONS 2020

Posted on December 7, 2020 by nradmin
TRA VISIONS is a contest for young  and senior researchers in the field of transport in Europe. It is organised every other year on behalf of the European Commission in connection with the Transport Research Arena (TRA) conference. VTI was a partner of the consortium that organised TRA VISIONS...

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Posted in Cycling, Economics, Energy and Fuel, Environment and Climate, Flight, Freight Transport, Human Behaviour and Attitudes, Infrastructure, Intelligent Transport Systems, Maintenance, Passenger Transport, Policy and Planning, Safety, Simulation, Traffic and Traffic Control, Vehicles | Tagged , , , , , , | Comments Off on TRA VISIONS 2020

Defining criteria that affect the importance and significance of cooperative road works warnings

Posted on March 4, 2020 by nradmin
Maintaining operability of the road network requires regular maintenance and improvement works, which can pose harm to traffic. A recent study produced background for an implementation and usage strategy for cooperative road works warnings in the Finnish road environment. Cooperative road works...

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Improved lighting for pedestrians and cyclists

Posted on February 13, 2020 by nradmin
Together with Lund University, researchers from VTI will study how outdoor lighting can improve the quality of walking and cycling trips at dusk and darkness. The end-product of the results will be recommendations for how footways and cycleways can be designed, maintained and illuminated in the...

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How vehicles can avoid accidents on newly paved roads

Posted on May 14, 2019 by nradmin
Friction is an important property for road safety. VTI has investigated how roads change in the first few weeks after surfacing work has been completed. Researchers recommend posting warning signs when the road is opened and waiting at least three weeks to measure the friction of the road. A few...

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