MARTA’s challenges have been well documented. Bucket hats and backpacks won’t be the impetus that finally rallies Atlanta residents around the city's transit system.

Atlanta United unveiled its MARTA line on Monday in a nod to the mass transit option’s importance to the city and to the MLS team’s supporters.

Credit: AP MARTA logo Author: WMAZ Published: 5:20 PM EDT April 24, 2014 Updated: 5:20 PM EDT April 24, 2014 ...