Page:UK Traffic Signs Manual - Chapter 8 - Part 1 (Traffic Safety Measures and Signs for Road). Designs 2009.pdf/300

 "Traffic officer" should be interpreted as referring to traffic officers as defined by the Traffic Management Act 2004. Traffic officers must be in uniform in order to exercise their powers.

"Traffic sign" refers to all traffic signs, road markings, and delineators either prescribed in the Traffic Signs Regulations and General Directions 2002 (SI 2002 No. 3113), the Traffic Signs Regulations (NI) 1997 (SR 1997 No 386) and subsequent amendment regulations, or authorised by the Secretary of State in accordance with Sections 64 and 65 of the Road Traffic Regulation Act 1984.

"Transition section" means the transition from a single carriageway road to a dual carriageway road and vice versa.

"Tunnel" means an enclosed road tunnel of 150m or more in length. For a full definition see BD 78 "Design of road tunnels" (DMRB 2.2.9).

"Type approval" means approval in accordance with direction 56.

"Unrestricted road" means a road subject to the national maximum speed limit, that is, 70mph for dual carriageway roads and 60 mph for single carriageway roads.

"Vehicle-actuated mode" means that the duration of the red and green signals and the time of the cycle vary in relation to the traffic flow into and through the controlled area.

"Warning light" means a lit lamp that conforms to the National Annex to BS EN 1235222006 at all times during its use.

"Working space" means that space around the works area needed for workers and equipment.

"Works area" means that area occupied by the works themselves.

"Works vehicle" means any vehicle which is officially involved in the road works and entitled to be there.

"Yellow" when describing the colour of a traffic sign means the colour of the retroreflective material described as “yellow” in BS 8408:2005 and BS EN 12899-122007. 299