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Warning signs

LETTERS

The content of Diarmaid Fleming's article (NCE 31 January) reporting low skid resistance on newly laid SMA surfaces came as no surprise as, in my experience, this problem is well known.

The difficulty is exacerbated when the material is to be covered by high friction surfacing (HFS) as, by definition, the site needs to offer high skid resistance from the outset.

While it may be 'politically' unacceptable to erect 'slippery road' signs to warn motorists of a problem with a newly laid surface, it might be appropriate to use 'temporary road surface' signs to warn road users of this potential hazard.

Using these signs may be particularly appropriate where HFS is to be applied after a 'weathering' period.

Andrew Clark, Construction Administration Services, 330 Stafford Road, Caterham, Surrey, CR3 6NJ

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