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Home > About Marta > Planning & Projects > Expansion Projects


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Regional Planning and Expansion Projects

Regional Planning represents the Authority with regional, state, federal, and local agencies and participates in studies and projects throughout the region. This branch also conducts long-range planning which includes guiding system expansion projects through various Federal Funding processes, ridership modeling and identifying future locations for capital expansion projects (fixed-guideway, bus rapid transit, light rail transit, etc.).  This branch also develops and reviews environmental impact analyses as well as historical and archaeological studies as required by State and Federal laws.

New Expansion Plan Map Coming Soon!

Please click on the name of the corridor to view detailed information.

Project Corridor



Last Update


Atlanta BeltLine


  • potential light rail or streetcar distributor service encircling central Atlanta


Tier I Environmental Study:

Tier I Final Environmental Impact Statement available for review



Clifton Corridor


Adopted Alternative:

  • light rail transit from Lindbergh Center Station to Avondale Station via the CDC, Emory University, and the DeKalb Medical Center
  • modifications to bus services to integrate with light rail service

Environmental Study: 

Environmental Impact Statement (EIS) has begun
New Materials Available!

Alternatives Analysis:

Locally Preferred Alternative Report available for review in Documents Section

Visit Clifton Corridor on Facebook!


I-20 East Corridor

Adopted Alternative:

  • extension of heavy rail from Indian Creek to Stonecrest Mall via Wesley Chapel
  • enhanced bus rapid transit with 5 new transit centers between central Atlanta and Wesley Chapel


Environmental Study:

Draft environmental documentation is being finalized.

Detailed Corridor Study:


Visit the I-20 East Corridor on Facebook!



West Line Corridor


  • potential bus rapid transit (BRT) service from the Hamilton E. Holmes rail station to Fulton Industrial Boulevard via I-20 West
  • extension of Blue Line heavy rail transit (HRT) service from Hamilton E. Holmes rail station to Martin Luther King, Jr. Drive and I-285

Environmental Study:

Updates Required

Corridor Reassessment Study:



GA 400 Corridor


  • potential high-capacity transit line from the Perimeter Area to Windward ParkwayHigh capacity transit expansion extending northward from the existing North Springs MARTA Station to Windward Parkway in northern Fulton County

Environmental Study:

The Draft Environmental Impact Statement (DEIS) is underway.

Alternatives Analysis:


Visit GA 400 on Facebook!



Enhanced Bus Transit, Park-and-Ride, and Transit Center Planning


  • Memorial Drive Q Routes
  • Enhanced arterial bus transit service corridors
  • Park-and-Ride, Transit Center Development 

Additional web content forthcoming


South Fulton Parkway


  • potential transit service along South Fulton Parkway

Feasibility Study:



Atlanta Streetcar


  • potential distributor streetcar service operating in Midtown/Downtown Atlanta


Check project link in left column for updated status on the streetcar project.



All Other Projects


  • rail station enhancements, multijurisdictional corridors

projects in various states


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