EN ISO 12855:2015

European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Architectural concepts and information exchanges
6 Computational specification
7 Transfer mechanisms and supporting functions
Annex A (normative) - Data type specifications
Annex B (normative) - Implementation Conformance
        Statement (ICS)
Annex C (informative) - Example enforcement process
        applying standardized APDU exchanges
Annex D (informative) - Example of data flows in a toll domain
Annex E (informative) - Example of rounding differences
Annex F (informative) - Use of this International Standard
        for the EETS
Bibliography

ISO 12855:2015 specifies- the interfaces between electronic fee collection (EFC) systems for vehicle related transport services, e.g. road user charging, parking and access control; it does not cover interfaces for EFC systems for public transport; an EFC system can include any EFC system, e.g. including systems that automatically read licence plate numbers of vehicles passing a toll point,- an exchange of information between the central equipment of the two roles of service provision and toll charging, e.g.- charging related data (toll declarations, billing details),- administrative data, and- confirmation data,- transfer mechanisms and supporting functions,- information objects, data syntax and semantics,- examples of data interchanges (see Annex C and Annex D), and- an example on how to use this International Standard for the European Electronic Tolling Service (EETS) (see Annex F).ISO 12855:2015 is applicable for any toll service and any technology used for charging. It is defined as a toolbox standard of transactions and Application Protocol Data Units (APDUs), which can be used for the assigned purpose. The detailed definitions of mandatory and optional elements in a real implementation are defined elsewhere. It does not define all communication sequences, communication stacks and timings.The scope of ISO 12855:2015 is illustrated in Figure 2. The data types and associated coding related to the data elements described in Clause 6 are defined in Annex A, using the abstract syntax notation one (ASN.1) according to ISO/IEC 8824‑1.