Overview
CEN ISO/TR 17424:2015 - Intelligent transport systems - Cooperative systems - State of the art of Local Dynamic Maps (LDM) concepts - is a technical report that surveys the status of Local Dynamic Map (LDM) concepts with respect to architecture, implementation and standardization. The report summarizes high‑level LDM implementations, compares them with the CEN/ETSI/ISO ITS‑Station architecture, derives requirements for a global LDM concept (functional, technical and legal), and provides a gap analysis and recommendations for standards development organizations (SDOs) and decision bodies.
Key SEO keywords: Local Dynamic Map, LDM, Intelligent Transport Systems, Cooperative ITS, ISO/TR 17424:2015, ITS‑Station.
Key topics and requirements
- LDM functional elements: LDM management (synchronization, updates, removal), LDM data storage, security, content integrity, privacy policy advisor, arbiter/screening and Service Access Points (SAPs)/data access, and shared-data brokers.
- Data model and data dictionary: Emphasis on consistent data elements and attributes to ensure interoperability between ITS stations and applications.
- Data sources & protocols: Consideration of inputs from vehicles and infrastructure using protocols such as CAM and DENM, broadcast sources (TMC, TPEG), and traffic centres (DATEX/DATEX2).
- Technical considerations: Geo‑location referencing, synchronization between distributed LDMs, data integrity and decision rules for conflicting data, and interfaces/APIs for application access.
- Security & privacy: Requirements and architectural considerations for data security, privacy policies and legal aspects tied to dynamic map content.
- Gap analysis & recommendations: Identification of mismatches between existing LDM implementations and the ITS‑Station reference architecture and suggestions for future standardization work.
Applications and users
Practical applications include cooperative safety services, hazard warnings, cooperative navigation, traffic management and location‑based services that rely on geographically referenced, time‑sensitive map content. Typical users of ISO/TR 17424:2015 are:
- ITS architects and system integrators designing LDM‑enabled platforms
- Vehicle OEMs and telematics vendors implementing V2V/V2I services
- Roadside infrastructure and traffic management authorities
- Service providers and data brokers handling dynamic transport data
- SDOs, policymakers and researchers evaluating standardization gaps
Related standards
- ITS‑Station reference architecture (CEN/ETSI/ISO)
- ISO/TR 24532 (ITS systems architecture guidance using CORBA concepts)
- DATEX/DATEX2, CAM, DENM, TMC, TPEG (data exchange and messaging formats)
Note: ISO/TR 17424:2015 is a state‑of‑the‑art survey and gap analysis; it does not prescribe a commercially preferred LDM implementation or claim exhaustive coverage of all projects.