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IBTTA’s transportation Glossary of Terms is an ever-changing list of terms used within the transportation and tolling industry.

The Glossary was updated in March, 2016.  If you have suggestions for future additions, please contact us.

  Download the Glossary of Terms.
 

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Titlesort descending Description
AAMVA

American Association of Motor Vehicle Administrators represents the state & provincial officials in the United States and Canada who administer and enforce motor vehicle laws. AAMVA encourages uniformity & reciprocity among the states and provinces and develops model programs in motor vehicle administration, law enforcement and highway safety.

AASHTO

American Association of State Highway and Transportation Officials (AASHTO) is an interest group based in Washington, DC, involved in research, advocacy and technical assistance. Primary focus is highways. AASHTO is also a standard setting organization.

ABCR

Associação Brasileira de Concessionárias de Rodovias is the Association of Brazilian Road Concessionaires (ABCR)

ACC

Adaptive Cruise Control. Also known as Autonomous Intelligent Cruise Control (AICC) and Intelligent Cruise Control (ICC). Dynamic speed and distance control in relation to the vehicle in front using on-board equipment.

Account

Each OBU is assigned to a User’s Account. The Account serves as the final destination for system transactions. For a pre-paid account the User periodically credits funds (from a Fiduciary) to the Account to offset the transaction cost.

Account Processor

An Account Processor is a third party organization that processes Accounts and transactions for an Issuer. For example, retailers who issue credit cards often contract account processing to third party companies like Payment Tech. In tolling, third-party Account Processors often operate Customer Service Center (CSC) entities.

ACH

The “Automated Clearinghouse” is a financial transaction network operated by the Federal Reserve. The ACH processes a number of different types of financial transactions including inter-bank transactions, credit card transactions, E-checks (a form of electronic payment), etc.

ACI

Automobile Club d’Italia

ACM

Automated Coin Machine - Unattended machines used for toll payment by coinage

ADAC

Allgemeiner Deutscher Automobil Club e.V

ADT

Average Daily Traffic

AENOR

Asociación Española de Normalización: is the Spanish Association for Standards

AET

All-Electronic Tolling - Technology which enables cashless toll collection, either through transponders and/or license plate readers, eliminating the necessity of stopping the vehicle to pay the toll. AET is sometimes referred to as "cashless" tolling.

AETC

All-Electronic Tolling Conversion - Process of changing a toll collection method from manual cash payments to fully automated electronic payments.

AETIS

Association of Electronic Toll and Interoperable Services - Association representing European Electronic Toll Services (EETS) providers as a stakeholder group with regard  to the European Union (EU).  http://www.aetis-europe.eu/

Aggregation

Transaction processing costs in electronic toll collection can be a significant component of an Issuer’s operating costs. To minimize this cost, Issuers often aggregate groups of transactions from Service Providers into a single transaction that is sent to the Fiduciary. This lowers the transaction cost by splitting the credit card transaction fee across a number of transactions. For example, a Customer Service Center (CSC) may collect all transactions for a period of time, and Aggregate those transactions into a single credit card charge to the User’s card account. As a result the Authority pays only a single transaction fee.

AICC

Autonomous Intelligent Cruise Control. Also known as Adaptive Cruise Control (ACC) and Intelligent Cruise Control (ICC). Dynamic speed and distance control in relation to the vehicle in front using on-board equipment.

AISCAT

Associazione Italiana Società Concessionarie Autostrade e Trafori: is the Italian Association of Turnpikes, Tunnels, Bridges and Other Toll Road Concessionaire Companies.

ALI-SCOUT

A Siemens navigation system having an in-vehicle interface that provides turn-by-turn visual and voice guidance.

ANPR

Automatic Number Plate Recognition

ANSI

American National Standards Institute

Application

This is the software that runs on the On-Board Unit and RSU Application Platform. The Application contains the “brains” (i.e. logic) that conducts the transaction using the Public and Private Keys (see below).

Application Platform

This is the computer that is collocated with the On-Board Unit and Roadside Unit. It runs the Application, or software that conducts the transaction.

APTA

American Public Transportation Association -  The American Public Transportation Association (APTA) advocates the advancement of public transportation.  APTA members are public organizations that are engaged in the areas of bus, paratransit, light rail, commuter rail, subways, waterborne passenger services, and high-speed rail.

ASA

Automatic Speed Adaptation. Various concepts aimed at limiting the vehicle speed in relation to different defined speeds (static, variable or dynamic) for certain road sections via various user interfaces (informative, supportive or compulsory). Also known as Intelligent Speed Adaptation (ISA).

ASECAP

Association Européenne des Concessionnaires d'Autoroutes et d'Ouvrages à Péage (European Association of Operators of Toll Road Infrastructures). ASECAP is the only European professional association of toll motorway companies. It brings together 17 Full members (France, Italy, Ireland, Spain, Portugal, Austria, Greece, Croatia, Hungary, Slovenia, Serbia, Belgium, The Netherlands, the United Kingdom, Norway, Denmark, Poland) and 4 Associate members (Morocco, Germany, Slovak Republic,  Czech Republic) that manage a total network of over 28,000 km (tolling) and over 12,000 km (charging).   

ASFA

Association des Sociétés Françaises d’Autoroutes et d’Ouvrages à Péage: is the Federation of French Motorway and Toll Facility Companies. ASFA is a professional organization which promotes the concessionary system for its members.

ATA

American Trucking Associations - American Trucking Associations is the national trade association for the trucking industry.  http://www.truckline.com/

ATI

Alliance for Toll Interoperability - Organization established to promote and implement toll collection interoperability among states and agencies. ATI's goals include establishing interstate customer video tolling and interoperability, establishing protocols & systems allowing for secure sharing of vehicle information and the investigation of RFID toll technology interoperability. ATI's membership consists exclusively of toll facility operators. http://www.tollinterop.org/

ATIS

Advanced Traveler Information System

ATM

Automatic Teller Machine - An electronic telecommunications device that enables the customers of a financial institution to perform financial transactions without the need for a human cashier or clerk

ATMS

Advanced Traffic Management System

ATRACIT

Advanced Traffic Control In Historical Town (Czech project)

Authority

A legal jurisdiction created to operate tolled infrastructure (e.g., E-470 Public Highway Authority, New York State Thruway Authority, North Texas Tollway Authority). Also known as the “District” in some states.

Automatic/Automated Vehicle Identification

AVI. Automated Vehicle Identification. A system which transmits signals from an on-board tag or transponder to roadside receivers for uses such as electronic fee collection and stolen vehicle recovery.

Autonomous Vehicle An autonomous vehicle is a vehicle that is capable of sensing its environment and navigating without human input. Autonomous vehicles detect surroundings using radar, lidar, GPS, Odometry, and computer vision. Advanced control systems interpret sensory information to identify appropriate navigation paths, as well as obstacles and relevant signage.

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