E-Z Pass - Electronic toll collection system that is common in the Northeast U.S.
Halifax-Dartmouth Bridge Commission - Authority for the Angus L. Macdonald and A. Murray MacKay Bridges that connect Halifax to Dartmouth in Nova Scotia.
HowStuffWorks: How E-ZPass Works - 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.
HowStuffWorks: How Intelligent Highways Will Work - 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.
MACPASS - Automated Toll Collection System - MACPASS is a small transponder device that lets you pay your bridge tolls electronically and allows you to make quicker, easier toll payments without stopping to use cash or tokens.
M-TAG - Electronic toll collection system for bridges and tunnels in Baltimore, Maryland, U.S.
Ramp Meters - A list of all cities that use ramp metering systems.
Toll Roads - A newsletter covering tolling turnpikes, bridges, and tunnels. Industry news, history, contents of past issues, and subscription information provided.
Toll Roads of America - A list and detailed information about all the toll roads in the US.