Overview
ISO/TS 22726-1:2025 - "Intelligent transport systems - Dynamic data and map database specification for connected and automated driving system applications - Part 1: Architecture and logical data model for harmonization of static map data" - defines the architecture and logical data model for static (non-dynamic) map data tailored to connected and automated driving (CAD) applications. The Technical Specification provides a harmonized information model to support consistent representation, exchange and conformance testing of high‑precision static map content used by AD stacks, simulation and ITS services.
Key topics and technical requirements
- Architecture: overall structural framework and conformance rules for map databases intended for CAD applications.
- Logical data model: comprehensive schema describing map features, relationships and properties for static map elements.
- MHAD package: core package defining configuration, classes and the conceptual modelling used throughout the standard.
- Belt concept: modeling lanes, roadways and intersections using a "belt" abstraction to represent traversable areas and manoeuvre paths.
- RoadBeltNetwork & LaneBeltNetwork: network-level and lane-level models for manoeuvre paths, segments and properties supporting routing and manoeuvre planning.
- RoadStructureAndEquipment: modelling road furniture, markings, structures and equipment with position/geometry policies.
- Traffic regulation modeling: rules, time and vehicle conditions to represent legal and operational traffic attributes.
- Relations to dynamic information: guidance on linking static map definitions to dynamic (real‑time) data.
- Conformance and testability: includes an Annex A abstract test suite and informative annexes on data types, resolution/accuracy and model comparisons to help implementers validate conformance.
Applications
ISO/TS 22726-1:2025 is intended to be used where accurate, harmonized static map data is required for:
- Connected & automated driving systems (localization, path planning, AD perception augmentation).
- HD map production and exchange between map providers, OEMs and Tier‑1 suppliers.
- Simulation and virtual testing of automated driving scenarios.
- Infrastructure and ITS services that integrate map-based rules and traffic regulation data.
- Map validation and certification workflows using the provided abstract test suite.
Who should use this standard
- Map data vendors and HD map engineers
- Automotive OEMs and software integrators working on ADS/CAD stacks
- Tier‑1 suppliers and ADAS developers
- ITS platform providers, municipalities and road authorities involved in digital infrastructure
- Test labs and certification bodies verifying map conformance and interoperability
Related standards
This Technical Specification complements other ITS and HD‑map specifications and industry map models by providing a harmonized, implementation‑focused logical model for static map content and conformance testing. Implementers should consider it alongside regional ITS standards and existing industry map formats when planning interoperability and data exchange.