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Category Archives: Maintenance
New research platform for better roads – and more
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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Posted in Environment and Climate, Maintenance, Okategoriserade
Tagged air pollution, measurements, noise, road surface, Vehicle
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Building bridges faster
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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Posted in Infrastructure, Maintenance, Okategoriserade
Tagged bridge, concrete
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VTI’s measurements make airfields safe
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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Posted in Infrastructure, Maintenance
Tagged airfields, bearing capacity, fallwing weight deflectometer, friction, FWD, measurments, runways, taxiways
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The risk of road accidents increases as more and more roads become polished
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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Posted in Environment and Climate, Human Behaviour and Attitudes, Infrastructure, Maintenance, Passenger Transport, Safety, Traffic and Traffic Control, Vehicles
Tagged SBUF, swedish construction industry, swedish transport administration
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Comparison between IRI from connected cars and IRI from profilometer
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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Posted in Maintenance
Tagged International Roughness Index, IRI, measurements, Roughness
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Megatrends are shaping future streets
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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Posted in Infrastructure, Maintenance
Tagged infrastructure, multifunctional streets, road construction, smart streets
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TRA VISIONS 2020
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 EU, European Commission, rail transport, TRA, TRA VISIONS, transport mode, Transport Research Arena
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Defining criteria that affect the importance and significance of cooperative road works warnings
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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Posted in Maintenance, Traffic and Traffic Control
Tagged C-ITS, cooperative systems, road works, warning systems
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Improved lighting for pedestrians and cyclists
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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Posted in Cycling, Human Behaviour and Attitudes, Maintenance
Tagged behaviour, cycling, darkness, lighting, walking
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How vehicles can avoid accidents on newly paved roads
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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Posted in Maintenance, Safety
Tagged friction, measurements, newly paved roads, road safety, surfacing
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