An electronic toll system designed to recognize and operate with transponder devices using a single specific data transfer protocol.

A small plastic card embedded with a memory chip and often a microprocessor, used for financial transactions, identification, as a key, etc.

An established, recursive computational procedure for solving a problem in a finite number of steps.

Communication systems where users transmit in the same bandwidth simultaneously. In this transmission technique, the frequency spectrum of a data-signal is spread using a code un-correlated with that signal.

Strategic Rail Authority in the United Kingdom.

Toll rate is the same fixed price during any day or time of day (24/7). (May vary by vehicle/weight class or distance traveled).

Toll facility pricing that is set at fixed rates, and do not vary by time of day or by dynamic pricing.

See also Eurovignette. A sticker or vignette proving that a distance or time-related toll has been paid by a user.

Electronic toll collection system used in Florida.

Sport Utility Vehicle

A contractor hired by an agency to build an electronic toll collection system with various parts supplied by different vendors. Essentially the “prime” contractor.

Also known as an On-Board Unit and Transponder. The in-vehicle device component of a DSRC (or ETC) sytem. A receiver or transceiver permitting the Operator's Road-side Unit (RSU)to communicate with, identify, and conduct an electronic toll transaction.

Transfer Protocol Control/Internet Protocol. TCP/IP is a set of protocols developed to allow co-operating computers to share resources across a network.

Toll Collection Services Revenue.  Cash, Automated Vehicle Identification (AVI)/Electronic Toll Collection (ETC), fines and ISF (Internal Service Fund) revenue as recorded on Authority financials.

Time Division Multiplexing - Simultaneous electronic transmission of two or more messages in one or both directions over a single transmission path, with signals separated in time or frequency. In time-division multiplexing, different time intervals are employed for different signals.  This is used to differentiate between ETC tags in a roadway environment.

Transportation and Expressway Authority Membership of Florida (TEAMFL) - The Transportation and Expressway Authority Membership of Florida (TEAMFL) was formed in 1997 to facilitate the exchange of information among toll agencies and the transportation industry.  The membership is made up of board members and executive staff of statewide expressway and transit authorities, the Florida Department of Transportation, the Florida Transportation Commission and private sector transportation partners. TEAMFL members discuss statewide issues in an effort to develop high quality roadway systems throughout the state.

Transportation and Expressway Authority Membership of Texas (TEAMTX) - The transportation and expressway authority membership of Texas, organized to offer an opportunity for those involved in developing, operating, funding, and arranging express toll roads and bridges to communicate and trade information, questions, experiences, and data.

Technologies in automotive communications, combining wireless voice and data capability for management information and safety applications.

Italy brand name of the national ETC system.

TELematic implementation on the Trans-European Road Network. A Report prepared by ERTICO and published in October 1994.

Trans European Road Network. Main Corridors linking European Member States.

The number of vehicles passing through a Toll Lane, in one direction, over a defined period of time.

Ticket Systems are traditional entry-exit toll systems, using tickets issued on entry and collected on exit to determine the trip length.

Télépéage Inter-Sociétés. Technical and contractual context of electronic fee collection (EFC) interoperability in the French concession system.

State mandated standards for electronic toll collection and interoperability in California.

A fee charged by a toll facility operator in an amount set by the operator for the privilege of traveling on said toll facility.

The combination of elements and components that constitute the means to collect a fee for use of a tolled facility.

The arrangement of toll points on a toll facility to set tolls. These can be with any type of toll point (toll plaza or ORT toll zone) for entry-exit systems or barrier systems.

The bridge, tunnel, toll road, or managed lanes to be tolled. Bridges and tunnels typically have one toll point on their facility; toll roads and managed lanes may have one or more toll points.

Restricts traffic flow to facilitate either the automatic or manual collection of tolls.

A toll plaza is a toll point location designed for vehicles to come to a stop and pay a toll with one or more technologies and payment methods. Some toll plazas also allow some degree of non-stop travel.

A conventional toll plaza with ETC available in some or all conventional toll lanes, and also with some ETC-Only lanes typically allowing roll-through up to about 25 mph / 40 kph. May or may not include license plate tolls. Dedicated Lanes are minimally modified from the original construction designed to accept cash payment.

A conventional toll plaza with ETC available in some or all conventional toll lanes. May or may not include license plate tolls.

A conventional toll plaza with ETC available in some or all lanes, and with one or more lanes modified and widened to safely allow higher-speed ETC-Only travel. These typically include enforcement and payment options based on license plates.

A conventional toll plaza where all drivers must stop and pay, without the ability to use an ETC account or pay by license plate. In the US, these are typically small facilities with low traffic volumes.

The physical location on a roadway where toll collection is conducted and enforced. A toll point may be a toll plaza of any type, or an ORT Toll Zone. A toll point may be on a mainline roadway or on a ramp. It may be on any type of facility: a bridge or tunnel crossing, a highway or a managed lane.