A revised skid resistance standard for the UK truck roads

The standard for managing the skid resistance on the truck roads in the UK (HD/28) has recently been revised. There are several differences to the previous standard issued in 2004 including the addition of new material, a revised format and some specific changes including: incorporation of the Agency's Interim Advice Notes (IAN 98/07) for managing skid resistance. Relevant parts of this advice note have been incorporated in the new HD/28 principally to facilitate a more effective and consistent application of the standard across the whole network; recommended management and prioritisation procedures for investigating sites, acknowledging that it may not be possible to assess all sites that are at or below the investigatory level; different requirements for bends depending on the radius; the word accident has been changed to crash throughout the standard; this is because an accident is considered a random occurrence whereas most road crashes have one or more causes; acknowledgement that it is not necessarily viable to equalise the risk of a skidding crash occurring over the whole network by simply applying different investigatory levels.