A pavement made of different levels of bituminous material.

a relatively thin surface of Asphalt Concrete Pavement (ACP) over a base and subbase resting on a subgrade Asphalt concrete surfaced pavements are categorized as being flexible or semi-rigid

A pavement that maintains and allows for the distribution of loads to the subgrade.

A pavement which obtains its load spreading properties mainly by inter-granular pressure, mechanical interlock and cohesion between the particles of the pavement material. Generally any pavement other than a Portland cement concrete pavement.

A Pavement which obtains its load spreading properties mainly by intergranular pressure, mechanical interlock and cohesion between the particles of the pavement material. In the case of an asphalt pavement, this further depends on the adhesions between the bitumen binder and the aggregate, and the cohesion of the binder. Generally, any pavement in which high strength Portland cement concrete is not used a construction layer.

A pavement structure which maintains intimate contact with and distributes loads to the subgrade. The base course materials rely on aggregate interlock, particle friction, and cohesion for stability.