Last week in Atlanta, I attended the triennial American Public Transportation Association (APTA) EXPO. The event was great for anyone interested in learning about public transportation. From rubber seals to rail cars ready for delivery, any and everything associated with mass transit trains and buses was on display. The giant locomotive engines and the working bus wash stations set up at the EXPO were a surprise for a new attendee like myself. But why did the Composite Advantage team trek to Atlanta to see buses?