Electronic toll collection system that is common in the Northeast U.S., based in New Jersey.

Graphic narrative shows the future freeway's new, cheaper technology and explains how ubiquitous digital devices will aid in easing our traffic woes, perhaps using triangulation.

Fully illustrated tutorial explains E-Zpass, an electronic toll-collection system consisting of a 900-MHz band car transponder, antenna, lane controller, LAN and host computer system.

Electronic toll collection system for bridges and tunnels in Baltimore, Maryland, U.S.

Full and partial lists with details, courtesy the Federal Highway Administration.

Consultants for Intelligent Transportation Systems (ITS). Has links to clients.

Online private newsletter providing information and commentary.

Alliance of toll operators and associated industries. Includes news and resources.

Gives brief details about certain U.S. facilities.

Electronic toll collection system used around Sydney, Australia, including on the M7. Includes e-TAG and e-PASS transponder information.