BS PD CEN/ISO TS 17444-1:2017

BS PD CEN/ISO TS 17444-1:2017 defines metrics for the charging performance of electronic fee collection (EFC) systemsin terms of the level of errors associated with charging computation.This document is a toolbox standard of metrics. The detailed choice of metrics depends on theapplication and the respective context.This document describes a set of metrics with appropriate definitions, principles and formulations,which together make up a reference framework for the establishment of requirements for EFC systemsand their later examination of the charging performance.The charging performance metrics defined in this document are intended for use with any ChargingScheme, regardless of its technical underpinnings, system architecture, tariff structure, geographicalcoverage, or organizational model. They are defined to treat technical details that can be differentamong technologies and vendors or vary over time as a "black box".They focus solely on the outcome of the charging process, i.e. the amount charged in relation to a premeasuredor theoretically correct amount, rather than intermediate variables from various componentsas sensors, such as positioning accuracy, signal range, or optical resolution. This approach ensurescomparable results for each metric in all relevant situations.The metrics are designed to cover the information exchanged on the Front End interface and theinteroperability interfaces between Toll Service Providers, Toll Chargers and Road Users as well as onthe End-to-End level.Cross References:ISO 17575-1:2016ISO 12855:2015ISO 17573:2010 Ed 1ISO 12813:2015ISO/IEC 20000-1:2011ISO 17575-2:2016ISO 17575-3:2016 ISO 14906:2011CEN/TS 16331:2012ISO 13141