Radio Frequency Identification (RFID)

A technology to identify tagged objects in an electromagnetic field. The tags are usually passive (powered by the reading field) and transmit a unique ID and possibly other data. Concerning toll charging the transmission would be bidirectional and active tags would be required.


Finding the charge (price), tariff and position text for a toll event by applying a tariff function defined by the tariff scheme.


Reference Case

Realtime Account Warning Limit

If value of Realtime Account (influenced by all SCCs of a Road User) falls below this limit, a warning will send to the Road User. Only relevant for registered accounts. Used in Financial Systems.


A written acknowledgment that a specified article, service, amount of money has been received. Can be used for accounting and taxation purposes.


Process of matching position and map data for decision "on or off toll road"

Red List

A list of vehicles for which an enhanced set of evidence record is collected (especially in trust based collection systems) in addition to the standard TDR.


A kind of recycling. Refurbishment (refurbishing) represents quality assured maintenance and/or repair of already used On-Board Unit for further use. Refurbishment is cost- and waste-saving.


The act of signing up for a service (concerning a user and/or vehicle) resulting in a contract between the operator and the user. The operator stores certain master data for each user and might check the validity of the data and the creditworthiness prior to accept a registration for a creation service and payment method.


revenue transfer from the Toll Charger to the Principal

Remaining Limit

The Remaining Limit is difference between the Drawing-Limit and the Real-time-Account Balance.

Road Operator

The operator who owning and managing the toll road infrastructures Real life: Motorway companies, road authorities, infrastructure owners.

Road Side Equipment (RSE)

Equipment located at the roadside used either to directly detect toll events, to enforce tolling systems or to support GNSS systems in cases of irresolvable ambiguities.

Road Side Infrastructure

All local, immobile system components of ETC System. Includes support beacons, enforcement equipment and vending machines.

Road User

In general the person or legal entity that is liable to pay toll.

Road User not liable to pay toll

Because "Road user" is generally defined as liable to pay toll it is necessary to mention the exception.


The methods and systems allowing moving vehicles to plan and track a trip from a start to a destination point (in space and time) typically using a routable (street) network (a mathematical graph) defined by a map.


Road User Charging