ITS dictionaries

Dictionary Link and description
PIARC Terminology Road Transport Informatics

This database provides definitions on 488 term within the ITS world in six languages. It is edited by the Technical Committee NVF53 of the Nordic Road Association.

Common ITS-related acronyms

Term Explanation

Cooperative Intelligent Transport Systems are advanced applications which aims to provide innovative services relating to different modes of transport and traffic management and enable users to be better informed and make safer, more coordinated, and 'smarter' use of transport networks


The Hazardous Locations Notification is a C-ITS service that describes an I2V warning message related to one or a series of potentially hazardous events on the road, where the approaching road users get information and therefore warning about the location and type of hazard they are approaching and – if available – also the duration of the event.


In-Vehicle Signage is an C-ITS information service to inform road users via in-car information systems about actual static or dynamic road signs. The objectives are to increase attentive driving and increase awareness on the content of road signs.


Road works usually affect the road layout and often the driving regulations. This may lead to unsafe situations and sometimes even accidents, which involve both road users and workers. The "Road Works Warning" C-ITS service, warns road users about road works, which can be mobile or static, short-term or long-term. 


The "Signalized Intersections" service provides information to road users, and vehicle data to traffic light controllers, for a safe and efficient approach and crossing of a signalised intersection(s).