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| Subject | English | Thesaurus |
| avia., Canada | high intensity runway operations | Operations, used at very busy airports, that consist of optimizing separation of aircraft in final approach in order to minimize runway occupancy time (ROT) for both arriving and departing aircraft and to increase runway capacity |
| abbr., scottish | High-Intensity Runway Lights | HIRL |
| transp., abbr. | Low Intensity Runway Edge Lights | LIRL |
| abbr., scottish | Low Intensity Runway Lighting | LIRL |
| transp., abbr. | Medium Intensity Runway Edge Lights | MIRL |
| abbr., scottish | Medium Intensity Runway Lighting | MIRL |