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Glossary of Terms

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 August, 2018.  If you have suggestions for future additions, please contact us.


  Glossary of Terms

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Titlesort ascending Description

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.


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


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.


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.