MARTA expansion is suddenly in the air — on the south side, where Clayton County commissioners vote today on launching a referendum for a penny sales tax, and on the north side, where the transit agency is exploring a line north along Ga. 400. My column today focuses on the pushback at recent public feedback meeting in Dunwoody. In our second column, a MARTA executive outlines the process of extending service on any Fulton-DeKalb route.

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