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The TM2 is recognized as delivering the definitive macro texture measurement standard. The updated TM2 measures a broad swathe of the road profile transversely over a width of 100mm at very frequent intervals to build a detailed record of the surface, with its average texture depth, and delivers repeatable and consistent results.

It is widely recognised that pavement texture is an extremely important factor in the control of surface friction and subsequent road safety. It is also an important parameter for the determination of factors such as noise emission from vehicle tyres.

The TM2 calculates and stores Root Mean Square Texture Depth (RMSTD) and Mean Profile Depth (MPD) to provide 10 and 50m averages.

The design used in the TM2 is based on proven concepts, but it’s been radically re-engineered to incorporate the latest available technology and measurement techniques.

The updated TM2 projects a very thin continuous line of light onto the road surface, transversely to the direction of travel. This procedure creates a broad swathe of road profile measurement across the road surface over a width of 100mm, which is repeated every 2mm at an average walking speed of 3.5kph.