Clause Number Description of Revision Date

TERMINOLOGY The following glossary is an alphabetical list of some of the terms commonly used in road design and construction by Main Roads Western Australia. This glossary is provided to assist under [..]

(Cycleway) (Bikeway) A path devoted to the exclusive use of pedal cycles.

That portion of a road or bridge devoted to the use of vehicles, inclusive of shoulders and auxiliary lanes.

The horizontal width of space available for the safe use of an errant vehicle, which consists of the verge area and is measured from the nearside edge of the traffic lane. In the case of a divided roa [..]

In relation to any road means that a section or part of that road is intended for use by prescribed traffic without avoidable hindrance, whether from traffic from an intersecting road or otherwise, an [..]

Refer to definition of "Controlled Access Road" in AS 1348-2002.

Means a road declared to be a highway, main road or secondary road under the Main Roads Act 1930, and includes parts of any such road.

Refer to definition of "Shared Path" in AS 1348-2002.

The ground surface that exists prior to any work being carried out.