Binh ATLCobbLinc operates hub-and-pulse transfer centers at Cumberland at Marietta in the northwestern Atlanta suburbs. I like that, and here is how it works: at 8:58am, for instance, buses in (almost) all directions are present. They pull off at 9:00am on the dot, one after the other. At 9:02, the transfer center is pretty much deserted until the next 30 or 60 minutes when that scene repeats again.