Trafficking trials

TRL Trafficking Trials

Large scale trafficking trials were conducted at the Transport Research Laboratory (TRL) in the UK. Both TriAx and Tensar biaxial geogrids were tested across varying aggregate depths, each up to 10,000 wheel passes.

The results showed that deformations were consistently smaller for TriAx geogrids and proved conclusively the structural benefits of TriAx, which include:

• Improved confinement of aggregate and enhanced performance of a mechanically stabilised layer
• An increase in traffic life for a given sub-base thickness
• A reduction in sub-base thickness for a given traffic load