| Abbreviation | Definition |
|---|---|
| RSV | Reconnaissance and Surveillance Vehicle |
| RSVP | Resident Shopper Vehicle Permit |
| RSW | Southwest Florida Regional International Airport |
| RSZ | Route, Schedule, and Zone |
| RT | Rail Transit |
| RT | Reaction Time |
| RT | Right Turn |
| RT | Road Tool |
| RT | Road Track |
| RT | Roll Top |
| RT | Round Trip |
| RTA | Rapid Transit Administration |
| RTA | Rapid Transit Authority |
| RTA | Regional Transportation |
| RTA | Regional Transportation Agency |
| RTA | Regional Transportation Alliance |
| RTA | Regional Transportation Authority |
| RTA | Road To Avonlea |
| RTAD | Road Transportation Administration Department |
| RTAG | Rural Transit Advisory Group |