Toll roads: New freeways, completely tolled Tolled mainlanes: The mainlanes of the freeway are tolled, while the access roads or 'frontages' remain toll free.
Tolled managed express lanes: The existing mainlanes remain free, but new express lanes built in the centre of the freeway are tolled. These lanes are barrier-separated and have limited entry and exit points. They can double as High Occupancy Vehicle and/or bus lanes, known as HOT (High Occupancy/Toll) lanes.
Tolled elevated lanes: A tollway is built elevated over an existing free roadway.
Tolled interchange: Ramps between a roadway and an intersecting roadway are tolled.