Verkkocta bus tracker uses gps devices to report bus location data (and more) back to our cta servers. We can then, in real time, show you where buses are on a map. Verkkothe cta bus tracker uses gps devices to track and report bus location data back to the cta servers. Welcome to cta bus tracker. Cta bus, train & pace bus tracker offers top features including: Verkkowelcome to cta bus tracker selected feed: 147 step 2 choose your direction of travel: Verkkocta bus tracker uses gps devices to report bus location data (and more) back to our servers. We can then, in real time, show you where buses are on a map and.