| MARTA | Magyar Automobil Reszveny Tarsasag Arad 
| Others |
| MARTA | Making A Reasonable Trip Agonizing
| Others |
| MARTA | Making Atlanta Ride Together Allday
| Others |
| MARTA | Massachusetts State Association of Regional Transit Authorities
| Others |
| MARTA | Metro Area Rapid Transit Authority
| Others |
| MARTA | Metro Atlanta Rapid Transit Authority
| Others |
| MARTA | Metro Atlanta Rapid Transportation Authority
| Others |
| MARTA | Metro Atlanta Regional Transit Authority
| Others |
| MARTA | Metropolitan Atlanta Rapid Transit Authority
| Others |
| MARTA | Mobile Augmented Reality Technical Assistance
| Others |
| MARTA | Monitoring Attitudes Towards Road Transport Automation
| Others |
| MARTA | Mountain Area Regional Transit Authority
| Others |
| MARTA | Moving Africans Rapidly Through Atlanta
| Others |
| MARTA | Multiple Access RouTing Authority
| Others |
| MARTA | My Augmented Reality Teaching Assistant
| Others |