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dnaSRPS CEN ISO/TS 19321:2021

Intelligent transport systems - Cooperative ITS - Dictionary of in-vehicle information (IVI) data structures (ISO/DTS 19321:2024)

General information

50.20     Feb 1, 2024

50.60    Apr 24, 2024



Technical Specification

35.240.60     43.040.15  



This document specifies the in-vehicle information (IVI) data structures that are required by different intelligent transport system (ITS) services for exchanging information between ITS Stations (ITS-S). A general, extensible data structure is specified, which is split into structures called containers to accommodate current-day information. Transmitted information includes IVI such as contextual speed, road works warnings, vehicle restrictions, lane restrictions, road hazard warnings, location-based services, re-routing. The information in the containers is organized in sub-structures called data frames and data elements, which are described in terms of its content and its syntax.
The data structures are specified as communications agnostic. This document does not provide the communication protocols. This document provides scenarios for usage of the data structure, e.g. in case of real time, short-range communications.

Life cycle


SRPS CEN ISO/TS 19321:2020


dnaSRPS CEN ISO/TS 19321:2021
50.20 Proof sent to secretariat or FDIS ballot initiated: 8 weeks
Feb 1, 2024

Related project

Adopted from FprCEN ISO/TS 19321

Adopted from ISO/DTS 19321


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