Controlled-access Highway - Definition

Definition

There is no formal definition of the English-language words "motorway", "freeway" and "expressway" or of the equivalent foreign-language words autoroute, autobahn autostrade autoput that are accepted world-wide - in most cases these words are defined by local statute or design standards. Descriptions that are widely used include:

ITE OECD British Standards
  1. Freeway: This is a divided major roadway with full control of access and with no crossings at grade. This definition applies to toll as well as tollfree roads.
    1. Freeway A: This designated roadways with greater visual complexity and high traffic volumes. Usually this type of freeway will be found in metropolitan areas in or near the central core and will operate through much of the early evening hours of darkness at or near design capacity.
    2. Freeway B: This designates all other divided roadways with full control of access where lighting is needed.
 Road, specially designed and built for motor traffic, which does not serve properties bordering on it, and which:
(a) is provided, except at special points or temporarily, with separate carriageways for the two directions of traffic, separated from each other, either by a dividing strip not intended for traffic, or exceptionally by other means;
(b) does not cross at level with any road, railway or tramway track, or footpath;
(c) is specially sign-posted as a motorway and is reserved for specific categories of road motor vehicles.
Entry and exit lanes of motorways are included irrespectively of the location of the sign-posts. Urban motorways are also included.
  • motorway Limited access dual carriageway road not crossed on the same level by other traffic lanes, for the exclusive use of certain classes of motor vehicles.

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