ratio scale

scale of measurement of data, having a fixed zero value, which permits the comparison of differences of values
NOTE: Ratio scaled parameters are applicable in mathematical equations using the operators multiplication and division.

scale of measurement of data, having a fixed zero value, which permits the comparison of differences of values
NOTE: Ratio scaled parameters are applicable in mathematical equations using the operators multiplication and division.

rationale; verification

verification process determining that a product of each phase of the system life cycle development process fulfils all the requirements specified in the previous phase

verification process determining that a product of each phase of the system life cycle development process fulfils all the requirements specified in the previous phase

real-time freezing (RTF)

freezing of each itinerary record as soon as its acquisition has terminated using a trusted recorder

freezing of each itinerary record as soon as its acquisition has terminated using a trusted recorder

relative charging error (RCE)

ratio between the absolute charging error and the reference value
NOTE 1 to entry: The topic of reference values (actual values) and how to handle them will be dealt with in the examination framework.

ratio between the absolute charging error and the reference value
NOTE 1 to entry: The topic of reference values (actual values) and how to handle them will be dealt with in the examination framework.

relative time

point in time relative to a defined event e.g. the entrance of a vehicle into an EFC specific area in minutes and/or hours

point in time relative to a defined event e.g. the entrance of a vehicle into an EFC specific area in minutes and/or hours

representative trip

trips that are of a distance larger than a defined threshold and so have to be considered by the related metrics
NOTE 1: Only trips which exceed the threshold and cover the specific types of roads of the Toll Regime have to be considered.
NOTE 2: The threshold may be defined as zero.

trips that are of a distance larger than a defined threshold and so have to be considered by the related metrics
NOTE 1: Only trips which exceed the threshold and cover the specific types of roads of the Toll Regime have to be considered.
NOTE 2: The threshold may be defined as zero.

req

request

rs

response

responsibility

state of being responsible, accountable or answerable, as for an entity, function, system, security service or obligation

state of being responsible, accountable or answerable, as for an entity, function, system, security service or obligation

RSA

Rivest, Shamir and Adleman

RCI

Road Charging Interoperability

road section tolling

tolling principle where the fee is due if predefined sections of roads are used

tolling principle where the fee is due if predefined sections of roads are used

RTTT

Road Transport and Traffic Telematics

CEN TR 15762

Road transport and traffic telematics - Electronic fee collection (EFC) - Ensuring the correct function of EFC equipment installed behind metallised windshield

ISO 17573

Road Transport and Traffic Telematics – Electronic Fee Collection – System architecture for vehicle related transport services

ENV ISO 14904

Road transport and traffic telematics – Electronic fee collection (EFC) – Interface specification for clearing between operators

road usage data

data necessary to calculate the fees accumulated by a road user

data necessary to calculate the fees accumulated by a road user

roadside unit; ITS roadside unit (RSU)

part of connected roadside equipment that provides wireless connectivity to vehicle systems and/or personal systems

part of connected roadside equipment that provides wireless connectivity to vehicle systems and/or personal systems

roaming rules

set of attributes for Front Ends according to CEN ISO/TS 17575-4, defining the group of associated EFC contexts and their relationships; and/or for Back Ends according to EN ISO 12855, defining the relations for multi-context EFC domains

set of attributes for Front Ends according to CEN ISO/TS 17575-4, defining the group of associated EFC contexts and their relationships; and/or for Back Ends according to EN ISO 12855, defining the relations for multi-context EFC domains

sample

subset of a population made up of one of more of the individual parts in which the population is divided

subset of a population made up of one of more of the individual parts in which the population is divided

Satellite-based Toll System

An electronic toll system that uses a satellite navigation system (GNSS) to determine the position of a vehicle on toll road and a mobile data network to communicate with the central system. This approach eliminates the need for special roadside equipment (RSE), such as toll gates. The payment may also be defined using more complex rules (e.g., charges based on entry, time or distance) and can be…

secure application module (SAM)

physical module that securely executes cryptographic functions and stores keys

physical module that securely executes cryptographic functions and stores keys

SHA-1

secure hash algorithm

secure monitoring compliance checking (SM_CC)

concept that allows a Toll Charger to rely on the trustworthiness of toll declarations produced by Toll Service Providers

concept that allows a Toll Charger to rely on the trustworthiness of toll declarations produced by Toll Service Providers

SM_TR

Secure Monitoring Trusted Recorder

SFP

security function policy

SM

security measure (countermeasure)

security target (ST)

ST set of security requirements and specifications to be used as the basis for evaluation of an identified TOE

ST set of security requirements and specifications to be used as the basis for evaluation of an identified TOE

security threat

potential action or manner to violate security systems

potential action or manner to violate security systems

SLA

service level agreement