E-ZPass
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E-ZPass is an electronic toll collection system used on toll roads, toll bridges, and toll tunnels in the Eastern United States, Midwestern United States, and Southern United States. The E-ZPass Interagency Group (IAG) consists of member agencies in several states, which use the same technology and allow travelers to use the same transponder on toll roads throughout the network.
An E-ZPass system transponder unit, also known as a tag or a pack, was distributed by the Massachusetts Turnpike Authority for use with their E-ZPass-compatible Fast Lane system and other roads which utilize E-ZPass.
New G4 style E-ZPass transponder for MassDOT manufactured by Kapsch
An E-ZPass exterior license plate mount transponder
An E-ZPass plaza near Rochester, New Hampshire using a coin drop basket (left) and a conventional toll booth (right)
Electronic toll collection
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Electronic toll collection (ETC) is a wireless system to automatically collect the usage fee or toll charged to vehicles using toll roads, HOV lanes, toll bridges, and toll tunnels. It is a faster alternative which is replacing toll booths, where vehicles must stop and the driver manually pays the toll with cash or a card. In most systems, vehicles using the system are equipped with an automated radio transponder device. When the vehicle passes a roadside toll reader device, a radio signal from the reader triggers the transponder, which transmits back an identifying number which registers the vehicle's use of the road, and an electronic payment system charges the user the toll.
E-ZPass tollbooths, like this one on the Pennsylvania Turnpike in Bensalem Township, Pennsylvania, use transponders to bill motorists.
Many ETC systems use transponders like this one to electronically debit the accounts of registered cars without their stopping.
Transponder used in Chile for some expressways
ETC Built-in Onboard device in a Nissan Fuga vehicle in Japan