For some years it has been suspected that new asphalt surfacings may have different skid resistance properties to surfaces have aged in service. This is thought to be due to the presence of a film of ...

This report has been produced by TRL as a result of collaboration between the Quarry Products Association, Refined Bitumen Association and Highways Agency. The report provides guidance on the ...

This report documents TRL's investigation into the adoption and application of systems thinking tools within the transport discipline. It covers a review of available literature, an assessment of 22 ...

For many years, aggregates for use in new surfacings have been selected according to their ability to resist polishing, as measured by their Polished Stone value (PSV). However, decisions are now ...

TRL Software’s iROADS Powers Malta’s Digital Leap in Road Asset Management. TRL Software has successfully rolled out a new digital pavement asset management system for Malta T ...

An examination of cone penetrometer methods. Published: Citation: ISBN: Author: Pages: 0. Reference: LR233. Download. Share this article: ...

The European Union General Safety Regulation (GSR) and Pedestrian Safety Regulation (PSR)1 govern type approval requirements specific to the safety of ‘M’, ‘N’ and ‘O’ ‘category vehicles ...

TRL’s vision for the future is of clean, efficient transport that is safe, reliable and accessible for everyone, including for countries in the global south; low- and middle-income countries. The ...