ISO/TR 21186-1:2021 PDF

Overview

ISO/TR 21186-1:2021 - "Cooperative intelligent transport systems (C‑ITS) - Guidelines on the usage of standards - Part 1: Standardization landscape and releases" - maps the global standards landscape for C‑ITS and defines an approach to group relevant standards into interoperable C‑ITS Releases. The technical report describes how major Standards Development Organizations (SDOs) contribute deliverables, introduces a classification scheme for those deliverables, explains how C‑ITS services are presented and executed, and provides a bibliography of standards with special relevance to C‑ITS.

Key topics

• Standardization landscape: Overview of major SDOs (ISO, CEN, ETSI, IEEE, etc.) and their roles in C‑ITS standard development.
• Classification of deliverables: A scheme that explains different types of SDO outputs (standards, specifications, technical reports) and their intended purposes.
• Standardization areas: Grouping of work by architectural domains (system level, station architecture, applications/messages, station management, security/privacy, access layer, network & transport, facility layer, protocol stack).
• C‑ITS services and methods: How services are presented and performed, including service initiation models such as broadcast-based information dissemination, service announcement mechanisms, and centrally initiated services.
• Releases concept: Definition of a “C‑ITS Release” - dated collections of standards, profiles and parameter values that together support interoperable C‑ITS services; guidance on release management and examples (e.g., C‑ITS Release 2).
• Goals of standardization: Emphasis on interoperability, portability, syntactic/semantic interoperability, minimum functionality and performance, privacy and cybersecurity, prevention of vendor lock‑in, and a global market approach.
• Bibliography: Curated list of relevant standards and SDO deliverables for implementers and policymakers.

Applications and who uses it

ISO/TR 21186-1 is targeted at:

• Vehicle OEMs and Tier‑1 suppliers implementing C‑ITS features and requiring an interoperable standards baseline.
• ITS application developers and software integrators selecting standards and profiles for deployments.
• Transport authorities and infrastructure operators planning C‑ITS rollouts and policy decisions.
• Standards bodies and test houses coordinating release management and conformance testing.
• Consultants and system architects defining implementations aligned with release profiles.

Practical uses include selecting the right set of standards for an ITS deployment, aligning product development on common profiles and parameters, and planning multi‑vendor interoperability tests.

Related standards

• Part of the ISO 21186 series (see Part 2: Hybrid communications; Part 3: Security).
• References and cross‑links to ITS architecture standards (e.g., ISO 21217) and other SDO deliverables; the report’s bibliography lists the most relevant ITS/C‑ITS standards.

Keywords: ISO/TR 21186-1:2021, C‑ITS, cooperative intelligent transport systems, standardization landscape, C‑ITS releases, ITS standards, interoperability, SDO, station architecture, service announcement.