Carriageway
The carriageway is that portion of the road formation, including lanes, auxiliary lanes and shoulders that is set aside for the use of vehicles, either moving or stationary.
Alternate Definitions
AMCORD defines a carriageway as the area of street reserve which is provided for the movement or parking of vehicles and determined by the invert of a kerb and channel and the point adjacent to the pavement edge for kerb (only) and edge strips.