Category Archives: Maintenance

Road dust sampling equipment exported

The ability to sample and analyse road dust amounts and properties is vital to the effort to reduce levels of hazardous particles in our ambient air. The Swedish National Road and Transport Research Institute (VTI) has been performing such sampling for many years using the wet dust sampler (WDS),...

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Unmanned Aircraft for Roadside Avalanche Monitoring

Unmanned aircraft
The Norwegian Public Roads Administration (NPRA) recognizes that unmanned aircraft systems (UAS) are increasingly capable and potentially can replace the use of helicopters for avalanche monitoring, but there are challenges for the use of these. The NPRA has an active maintenance program...

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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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Smart Paving Choice Reduces Energy Consumption

Close-up of road structure.
All approaches to reducing carbon dioxide emissions are welcome, and one of them might be to reduce the rolling resistance of the pavement. Different pavements offer different levels of resistance, which means that they can affect vehicle fuel consumption. One approach is to reduce the...

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Sweep-salting in Karlstad: Challenges and opportunities

Sweep salting bicycle paths
The Swedish National Road and Transport Research Institute (VTI) has analysed the conceivable advantages and disadvantages of sweep-salting bicycle paths in Karlstad, a seaside town in Sweden with an estimated 90,000 inhabitants. The town’s location and climate make sweep-salting a good method...

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Research Moving Forward into Skid-free Pedestrian and Bicycle Paths

Many initiatives are currently underway around Sweden intended to make it safer to move around outdoors in winter and increase the proportion of trips by bicycle or on foot. However, nearly all our knowledge of winter road maintenance derives from the maintenance of airports and vehicle roads in...

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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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Conference: ERPUG 2015 forum

The latest in road profiling and road surface characteristics. European Road Profile User's Group are proud to invite you to the ERPUG 2015 forum, October 15-16, 2015, in Budapest, Hungary. It will take place in central Budapest at the Technical University. Registration is now open, see...

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Unique Model Calculates Costs of Winter Maintenance

Winter road in snowstorm
In the late 1990s, VTI and the Swedish Transport Administration (then known as the Swedish Road Administration) began discussing the creation of a model for calculating the socioeconomic costs of various strategies for the winter maintenance of the national road system. VTI has now been working...

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Developing Winter Road Maintenance Technologies, Services and Business

Image showing typical winter driving conditions on Finnish main road
Finnish companies, authorities and research institutes have a long tradition of dealing with winter conditions. Key stakeholders in the winter maintenance branch have joined forces to develop new services and products. Due to its geographical location and four seasons, Finland has had to...

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