I live in the metro Atlanta area.
We have three public transit systems within 30 minutes of each other. One is the MARTA system, the two others are county-specific bus services (Gwinnett and Cobb County). None of them connect well with each other, nor to the city of Atlanta. You ride Cobb Community Transit if you get the urge to feel frustrated and confused, you take Gwinnett County Transit if you want to An Hero.
Neither counties have agreed to any form of MARTA extension, for fear of attracting public transit "Degeneracy" (Which I can understand in Cobb County, but it's not like Gwinnett's best & brightest are taking the bus to begin with).
Atlanta public transit is a joke. Instead of improving an existing system, we put our money into a streetcar that does fucking figure-8's through the tourist areas. We get ourselves into traffic-relief projects that only worsen the traffic problem. And God forbid an interstate bridge should collapse, you're better off quitting your job.