Mapping Resources & Functional Classification
Use only state DOT level Functional Classification (FC) maps when determine how to type (classify) a segment (Major Hwy, Minor Hwy, etc.). Some counties and cities have their own FC system, but only the state level system is to be used as a reference as these have been through a federal and state level approval process.
- Map Editor
- Functional Classification for other states.
Use of City Field
SEGMENTS:
For Freeways and Ramps, the "Primary City" name should always be marked "None". (There is no "Alternate City".)
For All Other Segments,
- The "Primary City" name should be an incorporated municipality or a CDP (Census Designated Place) if that segment is confirmed to be within the established geographic limits. If a segment does not lie within one of these, the "Primary City" should be marked "None". Instructions on how to select the appropriate city name are set forth in Determining Primary City Name.
- The "Alternate City" name is always the city named in the USPS mailing address. If the "Primary City" name is the same as the USPS city, an "Alternate City" name is not needed. Segments may have multiple "Alternate City" names which are valid and approved for use by the USPS.
- Duplicate City Names: You may find cities and/or CDPs with exactly the same name. If you believe you have encountered a city or CDP that is a duplicate of another in the same state, first confirm the findings with your State Manager(s) (SMs). Your SM will facilitate the necessary naming changes. The convention for dealing with duplicate city/CDP names is as follows:
- Two cities of the same name (append county to the city with the smallest population) (See two cities example in the table below)
- City and (at least one) CDP of the same name (append county to CDP(s) name) (See city with one or more CDP example) If there are multiple CDPs sharing a name with a city, all CDPs will have county name appended.
- CDP and (at least one) CDP of the same name (append county to the CDP with the smallest population) (See two or more CDPs example in the table below). The largest CDP is the only CDP that will not have the county appended to the name.
- When the county name is appended, use this format (County Co). As an example, Orange County would be appended exactly as "(Orange Co)"
| Type | Name | Population | County | In WME |
|---|---|---|---|---|
| (two cities) | ||||
| City | Happy | 25,000 | This | Happy (This Co) |
| City | Happy | 50,000 | That | Happy |
| (city with one (or more) CDP(s)) | ||||
| City | North Happy | 50,000 | That | |
| CDP | North Happy | 100,000 | Another | North Happy (Another Co) |
| (two (or more) CDPs) | ||||
| CDP | Glad | 15,000 | This | Happy (This Co) |
| CDP | Glad | 70,000 | That | Happy |
A "City" name is required.
- For PPs, APs, and PLAs, the "City" name, as well as the rest of the address, is determined by the business or entity. Whatever it identifies as the address should be used.
- For RPPs, use the USPS mailing address city for the "City" name.
Alabama
Alabama Mapping Resources
An important note about Alabama Code of laws is included on the page above. Click the header for relevant information for mapping in Alabama. Editors should always reference these local official sources for road naming. Those should be posted in the page above. If it is not please contact your State Manager for guidance.
Alabama Functional Classification
Click the link above for resources on functional classification.
Florida
Florida Mapping Resources
An important note about Florida traffic laws is included at the page linked above.
Click the link above for relevant information for mapping in Florida. Every county in Florida has online geographic resources from either the Property Appraiser's office and/or Geographical Information Systems (GIS) department. Editors should always reference these local official sources for road naming. Those should be posted in the page above. If it is not please contact your State Manager for guidance.
Florida Functional Classification
Click the link above for resources on functional classification.
Unsigned Florida SR#'s along US and Interstate Highways
Click the link above for more information about Unsigned FL SR#'s along US and Interstate Highways
Georgia
Georgia Mapping Resources
Click the link above for relevant information for mapping in Georgia. Editors should always reference these official local sources for road naming when possible. Those should be posted in the page above. If it is not please contact one of your State Managers for guidance.