Page:UK Traffic Signs Manual - Chapter 8 - Part 1 (Traffic Safety Measures and Signs for Road). Designs 2009.pdf/299

A2 APPENDIX – GLOSSARY "Restricted road" means a road subject to a maximum speed limit other than the national maximum speed limit.

"Remotely controlled" means the change of a sign by an operative remotely by radio or wired connection.

"Safety zone" means that area between the working space and the trafﬁc lanes occupied by vehicles which is necessary to protect the workers.

"Secondary carriageway" means the opposite carriageway to the one on which the road works are being carried out.

The "Secretary of State" means the Secretary of State for Transport, the Department for Regional Development (Northern Ireland), Transport Scotland or the Welsh Assembly Government as appropriate.

"Short-term situations" means situations that are expected to last less than 24 hours.

"Shuttle lane" means the area of carriageway where, owing to a temporary restriction, traffic has to ﬂow ﬁrst in one direction then in the other in a controlled manner.

"Single carriageway road" means a road that has one carriageway for travel in two directions or one direction in the case of a one-way road.

"Site approval" means formal written approval, given by the Highway Authority in accordance with direction 53, for a site which includes a junction to be signal controlled.

"Site length" means the distance between the ends of the controlled area.

"Statutory undertaker" means the person by whom the relevant statutory right is exercisable or the licensee under the relevant street works licence. For a full deﬁnition see section 48(4) (or in Scotland section 107(4)) of the New Roads and Street Works Act 1991.

"Stopping sight distance" is the distance required for a vehicle to come to a stop, taking into account the time taken to perceive, react, brake and stop safely. For full details see Table 3 of TD 9 "Highway Link Design" (DMRB 6.1.1).

"Street works" means works such as placing, inspecting, maintaining, adjusting, repairing, altering or renewing apparatus, changing the position of apparatus or removing it, executed in a street in pursuance of a statutory right or a street works licence. For a full deﬁnition see section 48(3) (or in Scotland section 107(3)) of the New Roads and Street Works Act 1991.

"Taper" means a single straight row of cones that directly closes or opens a trafﬁc lane. An entry taper is the first taper encountered and lead tapers are subsequent tapers facing the ﬂow of traffic.

A “terminal” sign means a sign placed in accordance with direction 8 or 10.

"Traffic authority" is defined by the New Roads and Street Works Act 1991 as having the meaning given in Road Traffic Regulation Act 1984.

"Traffic cone" or "traffic cylinder" means a device complying with the relevant requirements of regulation 56 (in Northern Ireland, regulation 45) and manufactured in accordance with BS EN 13422: 2004 "Portable road traffic signs – cones and cylinders". 298