Improving Infrastructure to Withstand Natural Hazards – a Major R&D Project for a Safer Society

Posted on April 7, 2014 by nradmin

Natural hazards – infrastructure for floods and slides (NIFS) is a multi-disciplinary project based on Report no. 15 to the Storting15 (2011-2012) entitled How to live with the risks –about floods and slides, and the subsequent parliamentary debate. The Norwegian National Rail Administration...

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Potholes – Annoying Problem for Road Users and Road Administrations

Posted on April 7, 2014 by nradmin

The winter 2013/2014 has in Denmark been reasonably mild, but normally it has been high season for a special kind of damage to our roads – Potholes. In places where the pavement conditions are not optimal and the climate during wintertime provides wet conditions and freeze-thaw cycling potholes...

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“BEST” – a Programme for Improved Traffic Safety

Posted on April 7, 2014 by nradmin

In 2013, the Norwegian Public Roads Administration initiated a five-year research programme called “BEST” (“Bedre Sikkerhet i Trafikken” , literally “Better Safety in Traffic”). The main purpose of this programme is to generate knowledge that may be of crucial importance when it comes...

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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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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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