Category Archives: Infrastructure

Models for Creating Sustainable Roads

Posted on March 12, 2014 by nradmin
VTI uses the PEDRO* calculation model and a number of different variables to calculate road degradation and examine how deformations in asphalt arise. Goods vehicles and heavy vehicles contribute greatly to the formation of ruts (longitudinal deformations) and ridges (transverse deformations) in...

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Experts Preparing Roads for Extreme Weather

Posted on February 24, 2014 by nradmin
Experts from several road laboratories in Europe, including the Swedish National Road and Transport Research Institute (VTI), have been working together for some time to ensure that Europe's roads will be better equipped to withstand extreme weather conditions. The European road system must be...

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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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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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New Method for Motorway Widening

Posted on October 22, 2012 by nradmin
The Danish Road Directorate has, in cooperation with a consortium of contractors consisting of  Barslund A/S, K.L. Kristensen A/S the SR Group, introduced a new construction method which exploits the existing materials in the road, as well as providing a very resistant road surface for heavy...

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