TrafficTraffic is the movement of vehicles and pedestrians on a road, and more generally also the movement of trains, ships, planes, etc.; with the focus more on the content than on the vehicle it is also the movement of goods or information. In addition to considering traffic along a route one may consider traffic coming and going in a particular locality. In some contexts "traffic" means commerce. In telecommunication the term traffic has the following meanings: 1. The information moved over a communication channel. 2. A quantitative measurement of the total messages and their length, expressed in CCS, erlangs or similar units, during a specified period of time.