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Seeing is Believing

Highways; Products & services

Most accidents happen after dark, and driving in the rain at night is especially dangerous, according to Highways Agency statistics. A new roadmarking system is aiming to help.

Wetlite 200, developed by Ringway Roadmarkings, is easily applied to most types of road surfaces in a high skid resistant, self draining and cleaning extrusion.

During dry, night-time conditions, Wetlite 200 has a minimum retroreflectivity of at least 200 minicandelas/m2/lux, which is the amount of reflected light measured by a retrometer from a specified light source at 30m geometry. The material maintains this high performance over a 24 month period.

'This compares with the current minimum initial dry retro-reflectivity of 100mcd/m2/lux,' says Ringway Roadmarking commercial and business director Scott Wardrop. 'In the wet, at night, Wetlite 200 will have at least 50mcd/m2/lux retroreflectivity under wet and rain conditions.'

The secret of Wetlite 200's performance lies in its graded combination of different sized glass beads, crushed aggregate and titanium, extruded in a slightly crested trapezoidal profile. The trapezoidal shape contributes to Wetlite 200's high visibility as it sits above any standing water and also quickly drains water off the sloping surfaces.

The Highways Agency is conducting extensive accident reduction and traffic calming trials in Derbyshire and Staffordshire using Wetlite 200 and other complementary safety enhancement products as part of its Tool Kit guidance notes for design engineers.

The product is approved for use on Highways Agency projects, having gained a Class A certificate in according with BS3262. Ringway says its specification exceeds requirements of the tougher, impending European standard for road markings - BS EN 1436:1998.

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