Highway functional class
Green
Highway functional class
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| Functional classes ending in: | ||
| 1 | Blue | Interstate |
| 2&3 | Purple | Expressway & principal arterial |
| 4 | Red | Urban principal arterial |
| 5 | Orange | Major arterial |
| 6 | Green |
Minor arterial |
| 7 | Yellow | Collector |
| Gray | Unspecified | |
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