AVL systems enable the approximate location of a vehicle to be determined and tracked as it traverses the transportation network. The most common application of AVL technology is for dispatching emergency vehicles, tracking transit vehicles and providing passengers with arrival time estimations through information displays, and delivery companies.

Automatic volume adjustment.

Abbreviation for utomatic ehicle ocation. Combining a locations-sensing device (such as a GPS receiver) with a wireless communications link to provide a home office or dispatcher with the location of a vehicle or mobile asset.

Location system, in particular for buses and heavy-goods vehicles, used widely in fleet management utilising technologies such as GSM, GPS and Internet