Author Archives: nradmin

Test Method Being Developed to Assess Ability to Drive in Individuals with Field of Vision Loss

Posted on January 20, 2014 by nradmin
Working with medical experts at Sahlgrenska University Hospital and the Swedish Transport Agency, researchers at the Swedish National Road and Transport Research Institute (VTI) are developing a standardised test method for assessing field of vision defects in car drivers. This method will help the...

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The Roads of the Future May Be Ground

Posted on October 28, 2013 by nradmin
A test carried out by VTI shows that ground asphalt produces less noise and reduced emissions. It has been known for a long time that grinding a concrete floor leads to reduced wear by trucks and other vehicles. But is it also possible to grind roads to make the asphalt smoother, with reduced...

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Poroelastic Road Surface – a Pilot Test Section at Arnakke in Denmark

Posted on October 14, 2013 by nradmin
The PERSUADE project aims at developing the experimental concept of poroelastic road surfacing (PERS) into a feasible noise-abatement measure as an alternative to, for example, noise barriers. The project comprises an extensive investigation and testing in the laboratory to develop a durable...

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Nordic Road Administration Researches Residual Salt

Posted on October 3, 2013 by nradmin
The purpose is to develop a model for residual salt to be implemented. The model will be capable of calculating the residual salt in real time or predicting the development of residual salt on the road after spreading, by taking traffic, road and weather parameters into consideration. Defining the...

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Thin Layer Pavements – Long Time Effect of Noise Reduction

Posted on April 15, 2013 by nradmin
In 2003 the Danish Road Directorate (DRD) started a co-operation with local administrations and asphalt contractors to develop noise reducing thin layer pavements and to construct such pavements on test sections. This article contains a status of the noise measurements carried out in the period...

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