| 2-Major Airport |
| 3-Major Port Facility |
| 4-Major Amtrak Station |
| 5-Major Rail/Truck Terminal |
| 6-Major Intercity Bus Terminal |
| 7-Major Public Transit/Multi Modal Passenger Terminal |
| 8-Major Pipeline Terminal |
| 9-Major Ferry Terminal |
| H-Congressional Corridor |
| N-National Highway System |
| <all other values> |