What is ISO 21217— Station and communication architecture about?
ISO 21217 is an international standard that covers aspects of Intelligent transport systems.
ISO 21217 describes the communications reference architecture of nodes called “ITS station units” designed for deployment in intelligent transport systems (ITS) communication networks. The ITS station reference architecture is described in an abstract manner.
ISO 21217 describes a number of ITS station elements, whether or not a particular element is implemented in an ITS station unit depends on the specific communication requirements of the implementation.
ISO 21217 describes the various communication modes for peer-to-peer communications over various networks between ITS communication nodes. These nodes can be ITS station units as described in ISO 21217 or any other reachable nodes.
ISO 21217 specifies the minimum set of normative requirements for a physical instantiation of the ITS station based on the principles of a bounded secured managed domain.
Who is ISO 21217— Station and communication architecture for?
ISO 21217 on Station and communication architecture is useful for:
- Emergency vehicle notification systems
- Vehicle manufacturing companies
- Traffic signal control systems
- Traffic navigation systems
- Public transport
- Road safety department
- Freight and logistics department
Why should you use ISO 21217— Station and communication architecture?
ITS aims to improve surface transportation in terms of safety, efficiency, comfort, sustainability, by applying information and communication technologies (ICT). ITS specifications are in general developed to address a specific ITS service domain, such as public transport, road safety, freight and logistics, public emergencies or electronic fee collection.
To support interoperability, C-ITS specifications are developed to exchange and share information amongst ITS applications of a given application domain and even between application domains.
ISO 21217 provides the intelligent transport systems (ITS) station and communication reference architecture that is referenced in a family of deliverables from standard development organizations (SDOs) for cooperative intelligent transport systems (C-ITS), which is a subset of standards for ITS.
ISO 21217 presents C-ITS services, based on the exchange of data between vehicles of any category (cars, trucks, buses, emergency, and specialized vehicles, etc.), the roadside and urban infrastructure, control and services centres, and other road users (pedestrians, cyclists, etc.).
ISO 21217 specifies a common approach to the way communications and data are securely managed for combining multiple access technologies and communication protocols required, in order to support a large variety of C-ITS services with diverging requirements, and efficient sharing of information maintained by individual service applications. It is necessary to combine multiple access technologies and communication protocols with distinct performance characteristics.
What’s changed since the last update?
BS ISO 21217:2020 supersedes BS ISO 21217:2014, which is withdrawn. BS ISO 21217:2020 includes some technical changes with respect to the previous edition:
- Many general alignments with other standards (e.g., on terms and abbreviations, and on references) revised or developed since the publication of the second edition of ISO 21217
- Prioritization in the receive path added
- More details on hybrid communications included
- Details on security requirements added
