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Interim Advice Note 56/04 - Maintenance of Traffic Signs with Dew Restraint Coatings

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This Interim Advice Note (IAN) provides advice about maintenance procedures for traffic signs with surfaces incorporating factory applied dew resistant coatings.

One of the prime objectives of Transport Wales is to provide road users with information that is relevant to their journeys – to have “Informed travellers”.

The purpose of this guidance note is to set out the policy relating to driver information signs at road works that require the closure of a lane or hard shoulder. These signs are designed to give drivers advance notice (chronologically and geographically) of future or current road works and to provide information about the works.