Functional Class (0)
| Interstate |
| Other Freeways & Expressways |
| Other Principal Arterials |
| Minor Arterials |
| Major Collector |
| Minor Collector |
Special Systems (1)
| STRAHNET |
| <all other values> |
Route Sign (2)
| Interstate |
|
| US Numbered |
| State Highway |
| County Road |
| City Street |
NHS (3)
| Not on NHS |
| NHS (Not Intermodal) |
| Map21 |
| <all other values> |
APHN (4)
| NHS |
|
| Other Arterials |
|
| Critical Service Routes |
|
| Other High Traffic Routes |
|