A toll lane that accepts ETC as toll payment from a driver. These lanes typically do not require a vehicle to come to a complete stop.

Express Toll Lane: ETLs are dedicated Priced Managed Lanes within highway rights-of-way that motorists may use by paying a toll. Unlike High Occupancy Toll lanes, ETLs charge all vehicles—including HOVs—for passage.

European Telecommunication Standardization Institute

Electronic Traffic and Toll Management

European Union

European Electronic Fee Collection Service. Complementary service to the national electronic toll services of the Member States, that shall ensure the interoperability, for users, of the electronic toll systems that have already been deployed in the Member States and of those to be deployed in the future in respect of the EC Directive throughout the territory of the Member States of the European Union.

In Europe a sticker proving that a distance related toll has been paid by the user. An EC Directive is in the process of being approved introducing the Eurovignette in Member States for HGV

Electronic Vehicle Registration - Electronic vehicle registration (EVR) uses radio frequency identification technology (RFID) to electronically identify vehicles and validate the identity, status, and authenticity of vehicle data. A unique electronic identification code is established for each vehicle via a tamper-resistant windshield sticker tag, and each unique code is linked to a record in the centralized owner/vehicle-based database.  EVR can be used to automate vehicle registration, reduce car theft and other fraudulent activities and increase tax and toll revenues.

Expected TCS Revenue at manual lanes and mainline Automated Vehicle Identification (AVI) lanes is calculated by multiplying the number of transactions in each  Automatic Vehicle Classification (AVC) class by the toll due for that AVC class at that location.  Expected TCS Revenue at ramp locations is calculated by multiplying the flat toll due for the ramp by the number of transactions regardless of AVC class.

"Express" or "Express Lanes" is the de facto standard name used for signing priced managed lanes in the US.
Note that "Express" lanes are also designations for expressway lanes that serve as a by-pass alternative around local interchanges. They preclude access to some local interchanges.

A High Capacity Road (HCR) free of toll.

Fast And Intertwined Regular lanes

The trade name of electronic toll collection in California (e.g. E-Z Type Pass, Sun Pass, etc.)

The Federal Register is the daily publication of the US Federal Government documenting proposed rules, final rules and public notices of federal agencies as well as Presidential actions.

The Federal Highway Administration is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States.

The Fiduciary as used here is a bank, credit card company, etc. that functions as the funds source to replenish the User’s Account.

Traffic operations unrestricted by toll collection, typically in a MLFF or ORT toll zone.

There are no free roads, but "free lanes" are the non-tolled travel lanes often next to priced managed lanes.

Florida's Turnpike Enterprise - Florida's Turnpike Enterprise is a business unit of the Florida Department of Transportation (FDOT).  The FTE is responsible for all operations on every FDOT-owned and operated toll road and bridge, representing about 600 miles of roadway and 80 percent of all toll facilities in Florida.

Money remuneration for transactions.

The GALILEO satellite radio navigation system, an initiative launched by the European Union and the European Space Agency, is based on a constellation of 30 satellites and ground stations providing information concerning the positioning of users in many sectors, including transport.

The gantry is the structure over the roadway at an ORT or MLFF toll point, on which toll system equipment is mounted over traffic. Standard highway sign trusses, or custom designs, may be employed. Gantries are located in Toll Zones.

General Purpose Lanes (“GP Lanes”) are traffic lanes available for use by the general public and vehicles without any restrictions or tolls. They are distinct from the Managed Lanes. General purposes lanes are not managed. General Purpose Lanes are normally not tolled, but some tolled General Purpose Lanes have been considered or constructed

Geographic Information System. A data management system designed to collect analyse and report geographic and demographic information.

Global Navigation Satellite System

Global Positioning System used for positioning and road segment identification. Similar to GALILEO.

The situation on a road where demand exceeds capacity to the extent that traffic is rendered stationary for unacceptable periods.

Global System for Mobile Communications

Highway Capacity Manual. An engineering reference manual for road design.

High Capacity Road

Heavy Goods Vehicles. Typically refers to trucks over 3.5 tons

Human-Machine Interface. A front-end user interface.

High-Occupancy Toll Lanes (HOT lanes) are Priced Managed Lanes open to High-Occupancy Vehicles (HOVs) at a discounted toll rate or free of charge. Vehicles with one occupant may also use the HOT lanes but with payment of the posted toll rate, which is often variable.

High Occupancy Vehicle Lanes (HOV Lanes) are unpriced managed lanes with access limited to vehicles with two or more occupants. Tolls are not collected in HOV lanes.

Or “Clearinghouse Hub”, is a node on the Clearinghouse Network, interfaces to all other Hubs on the Clearinghouse Network.

InterAgency Group. The E-Zpass InterAgency Group is the entity responsible for creating and administering E-Zpass, a collaboration between 21 member agencies on the East Coast of the United States that provides interoperable electronic tolling.