Category Archives: Traffic and Traffic Control

Report: Variable speed limits only have benefits

Posted on September 6, 2023 by nradmin
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

Posted on August 28, 2023 by nradmin
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

Posted on March 16, 2023 by nradmin
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

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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Board games help improve self-driving buses

Posted on November 23, 2022 by nradmin
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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Literature study on practical impacts of driving automation on traffic flow efficiency and emissions

Posted on September 26, 2022 by nradmin
Marketing and media have raised high expectations towards automated vehicles lowering road traffic emissions and improving efficiency, in addition to safety benefits. However, there is little evidence yet exists to support these claims, as found in a recent literature study. Kehä 3 - E18,...

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No easy task for advanced driver assistance systems to read road markings correctly

Posted on June 27, 2022 by nradmin
It is not always easy for advanced driver assistance systems to read road markings. Sunshine, shadows and rain are just some of the factors that can affect readability. The systems are also occasionally confused by longitudinal cracks. VTI researcher Sara Nygårdhs is project manager for...

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VTI train simulator on tour

Posted on June 20, 2022 by nradmin
The VTI train simulator was included in a research study during which train drivers were able to try out new designs of the European Rail Traffic Management System (ERTMS) signalling system. The aim is to create optimal signalling projects combined with the best possible work environment for the...

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Study of infrastructure support and classification for automated driving on Finnish motorways

Posted on March 16, 2022 by nradmin
Finnish Transport Infrastructure Agency set a project to assess the feasibility of Finnish motorway section between Helsinki and Tampere on E12 highway for operation of SAE Level 3-4 automated vehicles, to propose a framework for service level classification for them and to prepare a proposal for...

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The future: Three trends dominate VTI’s research

Posted on December 10, 2021 by nradmin
In the next few decades, much of VTI’s research will revolve around three major trends in the technological development of the transport system: electrification, automation and digitalisation. “All three areas are very important, but electrification is the most crucial thing. It’s the key...

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