Category Archives: Maintenance

Safety is key when Finns choose winter tyres

Posted on August 30, 2018 by nradmin
VTT Technical Research Centre of Finland Ltd. investigated motorists’ criteria for winter tyre choices. The results of a nationwide survey showed that traction on ice was the most crucial tyre feature, especially for motorists using studded tyres, whereas for users of studless winter tyres, the...

Read more
Posted in Maintenance, Vehicles | Tagged | Comments Off on Safety is key when Finns choose winter tyres

Non-native plant species spread via transport systems

Posted on August 29, 2018 by nradmin
Researchers at the Swedish National Road and Transport Research Institute, VTI, have compiled a report on non-native invasive plant species in Sweden and how they spread via transport systems. An invasive species is a non-native animal or plant species that has been introduced into an...

Read more
Posted in Environment and Climate, Maintenance | Tagged , | Comments Off on Non-native plant species spread via transport systems

Testing unmanned aircraft for roadside snowpack avalanche evaluation

Posted on August 29, 2018 by nradmin
Can unmanned aircraft systems (UAS) support the Norwegian Public Roads Administration’s (NPRA) mission to monitor snow avalanche hazards above their roads? NPRA staff recognized that UASs (often called drones) could reduce the need for avalanche staff to travel to dangerous avalanche zones and...

Read more
Posted in Flight, Maintenance, Safety | Tagged , , , , , | Comments Off on Testing unmanned aircraft for roadside snowpack avalanche evaluation

New technology for road surface measurement tested

Posted on May 2, 2018 by nradmin
The Swedish National Road and Transport Research Institute, VTI, has tested a new scanning-laser technology for road surface measurement. The tests show the new technology for comprehensive transverse-profile measurement provides dependable values in measuring transverse profile and rut...

Read more
Posted in Maintenance | Tagged , | Comments Off on New technology for road surface measurement tested

New climate-proof solutions for hard surfaces

Posted on September 14, 2017 by nradmin
High-density road infrastructure that emphasise maximum durability and minimum maintenance create inflexible systems, which put increased stress on urban trees and lead to increased risk for flooding. Over the past five years, the ‘Climate-proof solutions for urban surfaces’ project...

Read more
Posted in Environment and Climate, Infrastructure, Maintenance | Tagged , , , , , | Comments Off on New climate-proof solutions for hard surfaces

Road dust sampling equipment exported

Posted on March 18, 2017 by nradmin
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),...

Read more
Posted in Maintenance | Tagged , , , | Comments Off on Road dust sampling equipment exported

Unmanned Aircraft for Roadside Avalanche Monitoring

Posted on December 2, 2016 by nradmin
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 which...

Read more
Posted in Infrastructure, Maintenance, Safety | Tagged , , , | Comments Off on Unmanned Aircraft for Roadside Avalanche Monitoring

Bringing Together Nordic Expertise in Cooperation on Road Dust

Posted on September 16, 2016 by nradmin
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...

Read more
Posted in Environment and Climate, Maintenance | Tagged , , , , , | Comments Off on Bringing Together Nordic Expertise in Cooperation on Road Dust

Smart Paving Choice Reduces Energy Consumption

Posted on March 1, 2016 by nradmin
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...

Read more
Posted in Infrastructure, Maintenance | Tagged , , , , | Comments Off on Smart Paving Choice Reduces Energy Consumption

Sweep-salting in Karlstad: Challenges and opportunities

Posted on December 7, 2015 by nradmin
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...

Read more
Posted in Maintenance, Policy and Planning | Tagged , , , , | Comments Off on Sweep-salting in Karlstad: Challenges and opportunities