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Traction Enhancement - TGA and Alleviate

L.B. Foster’s Traction Gel Applicator (TGA) applies ALLEVIATE® traction enhancing materials directly to the top of running rails at locations where there is potential for low adhesion.

Adhesion between vehicle wheels and rail is dictated by top of rail surface conditions/contamination.

ALLEVIATE

We have developed the TGA3  to be capable of distributing approved traction enhancing materials directly to the position on the rail where they are required. It is specifically configured to distribute L.B. Foster traction enhancers ALLEVIATE and ALLEVIATE LT (Low Temperature)

ALLEVIATE traction enhancers are viscous water-based gels that can be applied directly on to the rail head and are proven not to interfere with track signaling. It achieves enhanced friction levels by a combination of abrasive action to weaken and remove hardened leaf layers and placement of sand particles directly on the rail head to provide grip between the wheel and rail.  

The deployment of traction enhancing materials can be both a seasonal and all year-round requirements. In the autumn, loss of traction results from seasonal leaf fall with the leaves covering the running rails creating a slippery surface. Throughout the year there are certain areas of track where traction is an issue; for example, wet rail phenomenon or where vehicles have to travel up inclines. Loss of adhesion results in braking and traction problems, which in turn lead to potential signal failures (loss of track circuit detection), station overruns and insufficient traction on inclines. The result being train delays, operational disruption and wheel damage. 

  • Traction Gel Applicator with solar panel at side of railway track.
    • Traction Gel Applicator with solar panel at side of railway track.

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