1:24000 scale datasets are recommended for projects that are at the county level. 1:24000 data should NOT be used for high accuracy base mapping such as property parcel boundaries.
1:100000 scale datasets are recommended for projects that are at the multi-county or regional level. 1:125000 scale datasets are recommended for projects that are at the regional or state level or larger.
Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analysis. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our webpage at: <http://geoplan.ufl.edu/education.html>. These data are based on interpretation of available information and should not be construed as legally binding.
Census Feature Class Code (2 digits)
A11 - Primary road with limited access or interstate highway, unseparated
A12 - Primary road with limited access or interstate highway, unseparated,in tunnel
A13 - Primary road with limited access or interstate highway, unseparated, underpassing
A14 - Primary road with limited access or interstate highway, unseparated, with rail line
in center
A15 - Primary road with limited access or interstate highway, separated
A16 - Primary road with limited access or interstate highway, separated, in tunnel
A17 - Primary road with limited access or interstate highway, separated, underpassing
A18 - Primary road with limited access or interstate highway, separated, with rail line in
center
A21 - Primary road without limited access, US highways, unseparated
A22 - Primary road without limited access, US highways, unseparated,in tunnel
A23 - Primary road without limited access, US highways, unseparated, underpassing
A24 - Primary road without limited access, US highways, unseparated, with rail line in
center
A25 - Primary road without limited access, US highways, separated
A26 - Primary road without limited access, US highways, separated,in tunnel
A27 - Primary road without limited access, US highways, separated, underpassing
A28 - Primary road without limited access, US highways, separated, with rail line in center
A31 - Secondary and connecting road, state highways, unseparated
A32 - Secondary and connecting road, state highways, unseparated,in tunnel
A33 - Secondary and connecting road, state highways, unseparated, underpassing
A34 - Secondary and connecting road, state highways, unseparated, with rail line in center
A35 - Secondary and connecting road, state highways, separated
A36 - Secondary and connecting road, state highways, separated,in tunnel
A37 - Secondary and connecting road, state and county highways, separated, underpassing
A38 - Secondary and connecting road, state and county highway, separated, with rail line in
center
A41 - Local, neighborhood, and rural road, city street, unseparated
A42 - Local, neighborhood, and rural road, city street, unseparated, in tunnel
A43 - Local, neighborhood, and rural road, city street, unseparated, underpassing
A44 - Local, neighborhood, and rural road, city street, unseparated, with rail line in center
A45 - Local, neighborhood, and rural road, city street, separated
A46 - Local, neighborhood, and rural road, city street, separated, in tunnel
A47 - Local, neighborhood, and rural road, city street, separated, underpassing
A48 - Local, neighborhood, and rural road, city street, separated, with rail line in center
A51 - Vehicular trail, road passable only by 4WD vehicle, unseparated
A52 - Vehicular trail, road passable only by 4WD vehicle, unseparated, in tunnel
A53 - Vehicular trail, road passable only by 4WD vehicle, unseparated, underpassing
A60 - Special road feature, major category used when the minor category could not be determined
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 drive, the road or portion of a road that provides access to businesses,
facilities, and rest areas along a limited-access highway; this frontage road may intersect
other roads and be named
A65 - Ferry crossing, the representation of a route over water that
connects roads on opposite
shores; used by ships carrying automobiles or people
A70 - Other thoroughfare, major category used when the minor category could not be determined
A71 - Walkway or trail for pedestrians, usually unnamed
A72 - Stairway, stepped road for pedestrians, usually unnamed
A73 - Alley, road for service vehicles, usually unnamed, located at the rear of buildings and
property
A74 - Driveway or service road, usually privately owned and unnamed, used as access
to residences, trailer parks, and apartment complexes, or as access
to logging areas, oil
rigs, ranches, farms, and park lands
Census Feature Class Code (1 digit)
A1 - Primary Highway With Limited Access Interstate highways and some toll highways
A2 - Primary Road Without Limited Access This category
A3 - Secondary and Connecting Road This category
A4 - Local,Neighborhood, and Rural Road A road in this category
A5 - Vehicular Trail A road in this category
A6 - Road with Special Characteristics This category
A7 - Road as Other Thoroughfare A road in this category
Linear segment source code
A - Updated 1980 GBF/DIME-File
B - USGS 1:100,000-Scale DLG-3 File
C - Other USGS Map
J - Pre-1990 Census Updates
K - Post-1990 Census Updates (1990-1994)
L - Pre-Census 2000 Local Official Updates (1995-Census 2000)
M - Pre-Census 2000 field Operations (1995-Census 2000)
N - Pre-Census 2000 Office Update Operations (1995-Census 2000)
O - Post-Census 2000 (2000-2002)