It operates between Bankhead and Edgewood/​Candler Park stations, running exclusively inside the Atlanta city limits.

[10] On March 25, 2024, Andre Dickens, the mayor of Atlanta, announced plans for four new infill stations on the MARTA rail network.

[12] Additionally, as of 2021, there are plans to extend the platforms at Bankhead station, the line's western terminus, to accommodate eight-car trains.

When that happens, Green Line service will be extended eastward to Avondale, with stops at East Lake and Decatur.

It begins at the western terminus of Bankhead station, paralleling Proctor Creek through West Atlanta.