Describes road class.
Road class is undefined.
Motorways and some arterial roads.
Primary A roads.
Secondary A roads.
B roads.
Functional class 4.
Functional class 5.
Functional class 6.
Functional class 7.
Unclassified roads.
Road usage classification.
A common road.
A ramp.
A roundabout.
A ferry connection.
The road usage is unknown.