Overview
ISO/TS 22726-2:2025 is a Technical Specification from ISO for intelligent transport systems (ITS) that defines a unified logical data model of dynamic data used in map databases for connected and automated driving applications. Published as Part 2 of the ISO/TS 22726 series (first edition, 2025), the document synthesizes and harmonizes dynamic event information defined by existing dynamic information standards and provides precise relative location referencing to be linked with ISO/TS 22726-1 (the static map architecture and logical model).
Key topics and requirements
- Unified logical data model: A generic schema that maps classes from multiple existing dynamic information standards into a common representation suitable for CAV (connected and automated vehicle) systems.
- Location referencing: Precise relative location references to align dynamic data with static map content defined in ISO/TS 22726-1.
- Modelling and conformance: Guidance on modelling approaches, mapping between standards’ classes, and conformance criteria for implementers.
- Package-based data content: Detailed logical definitions across multiple packages such as:
- DynamicInformationDataSet, Common, CodeLists
- DataManagement, DataQuality, DataTypes
- LocationReference, AreaLocation, LinearLocation, PointLocation
- SituationDataset, OperatorAction, Parking, SPaT, TrafficElement, Obstruction
- Data quality and management: Structures for expressing data provenance, update management and quality indicators relevant to dynamic event feeds.
- Traceability and use cases: Informative annexes provide traceability matrices and location-referencing use cases to support implementation.
Practical applications
ISO/TS 22726-2:2025 is intended to be used where dynamic road and traffic information must be integrated with map databases for real-time or near-real-time automated driving functions:
- OEMs and Tier‑1 suppliers: to standardize how sensor feeds, V2X messages and traffic event data are represented and consumed by AD/ADAS systems.
- Map data providers and integrators: to convert heterogeneous dynamic event feeds into a consistent logical model aligned with static map layers.
- Traffic management centers and mobility service providers: for interoperable exchange of SPaT, obstruction, parking and traffic element information.
- Software developers and system architects: to design APIs, databases and message translators that adhere to a common dynamic data model.
Related standards
- ISO/TS 22726-1 - Architecture and logical data model of static map data for connected and automated driving.
- Other domain-specific and regional dynamic information standards and V2X profiles (mapped into the unified model in this specification).
Keywords: ISO/TS 22726-2:2025, intelligent transport systems, dynamic data, logical data model, connected and automated driving, map database, location referencing, SPaT, parking, traffic data.