Overview
SIST-TS CEN ISO/TS 22726-2:2025 is a technical specification developed within the framework of intelligent transport systems (ITS). Titled "Intelligent transport systems - Dynamic data and map database specification for connected and automated driving system applications - Part 2: Logical data model of dynamic data," this standard defines a unified logical data model for dynamic data relevant to connected and automated driving (CAD) applications. Building upon existing dynamic information standards, the data model aligns closely with ISO/TS 22726-1, which addresses static map data. Its primary goal is to facilitate the interoperability, efficiency, and scalability of CAD systems by standardizing how dynamic event data is integrated with location-based references in map databases.
Key Topics
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Unified Logical Data Model:
The standard introduces a generic logical data model that synthesizes classes and interfaces from a range of existing dynamic information specifications such as DATEX II (EN 16157), TPEG, DENM, VICS, and more.
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Precise Location Referencing:
Ensures dynamic data, such as event notifications or road condition updates, are accurately linked to specific map elements using standardized location reference packages (point, linear, area locations) in conjunction with ISO/TS 22726-1.
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Data Interoperability:
Supports cross-standard compatibility by mapping classes and attributes between the proposed logical data model and those of referenced international standards.
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Dynamic Data Specification:
Covers packages and classes for dynamic event types, including traffic incidents, congestion, roadwork, and obstructions, ensuring consistent definitions and data structure.
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Quality and Traceability:
The model incorporates data management and quality attributes, enabling traceability matrices and conformance to data quality principles.
Applications
SIST-TS CEN ISO/TS 22726-2:2025 is crucial for stakeholders in the domain of connected and automated vehicles, smart mobility, and transportation data services. Practical applications include:
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Automated Driving Systems:
Serving as a foundation for integration of real-time dynamic data (e.g., road hazards, traffic flow, construction zones) into digital map ecosystems utilized by autonomous vehicles.
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Map Database Providers:
Streamlining the compilation, maintenance, and expansion of dynamic map data libraries and backend services, reducing development costs and enabling robust data exchange.
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Traffic Management Centers:
Facilitating harmonized traffic information exchange and decision-making through standardized data structures, improving situational awareness and response to dynamic road conditions.
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ITS Application Developers:
Providing standardized data packages and code lists (e.g., accident types, abnormal traffic, animal presence), making it easier to create interoperable and scalable CAD applications that conform to recognized international standards.
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National and Regional Authorities:
Ensuring that dynamic data used for road safety, traffic efficiency, and emergency response is consistent, reliable, and compatible with international frameworks.
Related Standards
The unified model outlined in SIST-TS CEN ISO/TS 22726-2:2025 is designed to work in close collaboration with other key international standards, including:
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ISO/TS 22726-1:
Specifies the architecture and logical data model for static map data. TIT-TS CEN ISO/TS 22726-2:2025 connects dynamic data elements precisely to these static references.
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EN 16157 (DATEX II):
European standards for traffic data exchange, providing data models for dynamic information such as traffic incidents and roadworks, which are harmonized within the logical model.
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ISO 21219-15 (TPEG2-TEC), ISO/TS 19321 (IVI), ETSI EN 302 637-3 (DENM):
Protocols and standards defining how dynamic event messages and in-vehicle information are formatted and exchanged. Mapping between these standards and SIST-TS CEN ISO/TS 22726-2:2025 enables broad interoperability.
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ISO/IEC 19505 (UML):
Ensures the logical data model's conformance with the Object Management Group Unified Modeling Language, supporting precise software and database implementation.
SIST-TS CEN ISO/TS 22726-2:2025 is a strategic international technical specification for standardizing dynamic data models in intelligent transport systems, fostering interoperability, safety, and innovation in connected and automated driving applications.