| Name | Data Type | Definition | |
|---|---|---|---|
| AIR | string | Air taxiway. | |
| GND | string | Ground taxiway. | |
| EXIT | string | Exit/turnoff taxiway. | |
| FASTEXIT | string | Rapid exit/turnoff taxiway. | |
| STUB | string | Stub taxiway. | |
| TURN_AROUND | string | Turn around. | |
| PARALLEL | string | Parallel taxiway. | |
| BYPASS | string | Bypass holding bay. | |
| OTHER | string | Other. |