Value | Definition |
A00 | Road, major and minor categories unknown
|
A01 | Road, unseparated
|
A02 | Road, unseparated, in tunnel
|
A03 | Road, unseparated, underpassing
|
A04 | Road, unseparated, with rail line in center
|
A05 | Road, separated
|
A06 | Road, separated, in tunnel
|
A07 | Road, separated, underpassing
|
A08 | Road, separated, with rail line in center
|
A1 | Primary highways with limited access
|
A10 | Primary highways with limited access, major category
|
A11 | Primary highways with limited access or interstate hwy, unseparated
|
A12 | Primary highways with limited access or interstate hwy, unseparated in tunnel
|
A13 | Primary highways with limited access or interstate hwy, unseparated underpassing
|
A14 | Primary highways with limited access or interstate hwy, unseparated rail line in center
|
A15 | Primary highways with limited access or interstate hwy, separated
|
A16 | Primary highways with limited access or interstate hwy, separated in tunnel
|
A17 | Primary highways with limited access or interstate hwy, separated underpassing
|
A18 | Primary highways with limited access or interstate hwy, separated rail line in center
|
A2 | Primary road without limited access
|
A20 | Primary road without limited access, major category
|
A21 | Primary road without limited access, unseparated
|
A22 | Primary road without limited access, unseparated in tunnel
|
A23 | Primary road without limited access, unseparated underpassing
|
A24 | Primary road without limited access, unseparated rail line in center
|
A25 | Primary road without limited access, separated
|
A26 | Primary road without limited access, separated in tunnel
|
A27 | Primary road without limited access, separated underpassing
|
A28 | Primary road without limited access, separated rail line in center
|
A3 | Secondary and connecting road
|
A30 | Secondary state and county roads, major category
|
A31 | Secondary state and county roads, unseparated
|
A32 | Secondary state and county roads, unseparated in tunnel
|
A33 | Secondary state and county roads, unseparated underpassing
|
A34 | Secondary state and county roads, unseparated rail line in center
|
A35 | Secondary state and county roads, separated
|
A36 | Secondary state and county roads, separated in tunnel
|
A37 | Secondary state and county roads, separated underpassing
|
A38 | Secondary state and county roads, separated rail line in center
|
A4 | Local, neighborhood and rural road
|
A40 | Local, neighborhood, rural road, city street, major category
|
A41 | Local, neighborhood, rural road, city street, unseparated
|
A42 | Local, neighborhood, rural road, city street, unseparated in tunnel
|
A43 | Local, neighborhood, rural road, city street, unseparated underpassing
|
A44 | Local, neighborhood, rural road, city street, unseparated rail line in center
|
A45 | Local, neighborhood, rural road, city street, separated
|
A46 | Local, neighborhood, rural road, city street, separated in tunnel
|
A47 | Local, neighborhood, rural road, city street, separated underpassing
|
A48 | Local, neighborhood, rural road, city street, separated rail line in center
|
A5 | Vehicular trail
|
A50 | Vehicular (4WD) trail, major category
|
A51 | Vehicular (4WD) trail, unseparated
|
A52 | Vehicular (4WD) trail, unseparated in tunnel
|
A53 | Vehicular (4WD) trail, unseparated underpassing
|
A6 | Roads with special characteristics
|
A60 | At-grade ramp or connecting road not associated with a limited access hwy
|
A61 | Cul-de-sac, the closed end of a road that forms a loop or turn around
|
A62 | Traffic circle, the portion of a road or intersection of roads forming a roundabout
|
A63 | Access ramp, the portion of a road that forms a cloverleaf or limited access interchange
|
A64 | Service road, provides access to businesses and rest areas
|
A65 | Ferry crossing, passenger, seasonal
|
A66 | Ferry crossing, passenger, year-round
|
A68 | Ferry crossing, passenger, vehicular, seasonal
|
A69 | Ferry crossing, passenger, vehicular, year-round
|
A7 | Road as other thoroughfare
|
A70 | Other thoroughfare major category
|
A71 | Walkway, for pedestrians, usually unnamed
|
A72 | Stairway, stepped road for pedestrians, usually unnamed
|
A73 | Alley, road for service vehicles, located at the rear of buildings
|
A74 | Driveway, usually privately owned and unnamed
|
A75 | Road, parking area
|
B00 | Railroad, major and minor categories unknown
|
B01 | Railroad track, not in tunnel or underpassing
|
B02 | Railroad track, in tunnel
|
B20 | Railroad spur track, major category
|
B30 | Railroad yard track, major category
|
B51 | Carline, a track for street cars, trolleys, and other mass transit rail systems
|
C31 | Aerial tramway, monorail, or ski lift
|