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Road Classes

Road Class (ROAD_CL/ROAD_CLASS) is a combination of a variety of conditions: Ramp, Ferry Type, Roundabout, Controlled Access, Intersection Category, and Functional Class.

Ramp (Ramp) indicates a ramp that is a connector that provides access between roads that do not cross at grade: N (Not a ramp) or Y (Ramp).

Ferry Type (FerryType) indicates whether a link is or is not a ferry link. If the link is a ferry link, Ferry Type describes if it is a boat ferry link, or a rail ferry link: H (Not a Ferry), B (Boat Ferry) or R (Rail ferry).

Roundabout (Roundabout) indicates a contiguous loop with consistent one-way traffic throughout the circle that controls the traffic flow from converging roads: Y (Roundabout) or N (Not a roundabout).

Controlled Access (ContrAcc) identifies roads with limited entrances and exits that allow uninterrupted high speed traffic flow: Y (Controlled Access) or N (Not Controlled Access).

See Intersection Categories for details about Intersection Categories (INTERSECTION_CATEGORY).

See Functional Class Codes for details about Functional Class (FuncClass).  

Order Priority ROAD_CL/
ROAD_CLASS
Description Streets Ramp Streets FerryType Streets Roundabout Streets ContrAcc Streets INTERSECTION_CATEGORY Streets FuncClass
1 3 Highway Ramp Y          
2 4 Ferry Crossing   B OR R        
3 5 Roundabout     Y      
4 2 Highway       Y Not Equal to 2  
5 6 Major Road         Not Equal to 2 1 OR 2 OR 3
6 1 Surface Street All Other Values