Category Archives: Traffic and Traffic Control

HCT: Do longer trucks affect road safety?

Trials of longer, heavier vehicles have shown that they can help reduce climate impact by increasing transport efficiency. Fewer trucks carrying more cargo in a single consignment use less fuel per tonne of goods transported, which in turn results in lower emissions. Several ongoing projects...

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30 km/h general speed limit in urban areas had a positive effect

Several European cities have introduced a general speed limit of 30 km/h in urban areas and the results so far show lower speed, compliance with the speed limit and fewer accidents. This is summarized in a new TØI report that looks at experiences from six European cities, as well as Spain,...

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ROADVIEW – autonomous vehicles in extreme weather

Getting autonomous vehicles to work properly in sunny and dry weather is difficult enough. Add heavy rain, high winds and dense fog and the task becomes even more difficult. The ROADVIEW project is about just that – autonomous vehicles in extreme weather. Chamber where artificial fog is used...

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Norway in the driver’s seat of bus safety

A separate European standard for crash safety in buses should be developed, according to TØI researchers in a new report.  Photo: Shutterstock That's one of the recommendations in a recent TØI report on driver and road safety in Europe and Norway, which was presented at Europe's largest...

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Speed effects of automatic enforcement on urban streets

A recent study evaluated the effects on driving speed of automatic speed enforcement on the street network in Helsinki.  Installing automatic enforcement reduced speeding and in particular the proportion of excessive speeding. There was also a reduction in the proportion of speeding overall...

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Report: Variable speed limits only have benefits

Good compliance, less environmental impact and better road safety. The same journey times on average, but fewer very long queues. A variable speed limit trial has shown a number of benefits – and actually no disadvantages. “This method should be used more,” says the researcher responsible...

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VTI has tested vehicle barriers for the Norwegian government

At the request of the Norwegian government, VTI has conducted crash-tests with barriers that are designed to protect against hostile vehicle attacks. The tests were conducted in April and have contributed to Norway now having a better level of protection for the government quarter in...

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Multiple new EU projects underway

A total of seven applications from the Swedish National Road and Transport Research Institute (VTI) have been granted by Horizon Europe, the European Union’s key funding programme for research and innovation. Grant applications from VTI have enjoyed a high success rate. Of 17 applications...

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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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Board games help improve self-driving buses

Serious Games are games created primarily for a purpose other than entertainment. The CATAPULT research project uses board games and maps to rethink self-driving vehicles and the future of public transport. The games provide interesting insights, according to the first Swedish test participants...

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