ISO 18750:2025

Intelligent transport systems — Local dynamic map

This document: — describes the functionality of a "local dynamic map" (LDM) in the context of the "bounded secured managed domain" (BSMD); — specifies: — general characteristics of LDM Data Objects (LDM-DOs) that can be stored in an LDM, i.e. information on real objects such as vehicles, road works sections, slow traffic sections, special weather condition sections, which are as a minimum requirement location-referenced and time-referenced; — service access point functions providing interfaces in an ITS station (ITS-S) to access an LDM for: — secure add, update and delete access for ITS-S application processes; — secure read access (query) for ITS-S application processes; — secure notifications (upon subscription) to ITS-S application processes; — management access: — secure registration, de-registration and revocation of ITS-S application processes at LDM; — secure subscription and cancellation of subscriptions of ITS-S application processes; — procedures in an LDM considering: — means for maintaining the content and integrity of the data store; — mechanisms supporting several LDMs in a single ITS station unit.

Systèmes de transport intelligents — Carte dynamique locale

Ce document — décrit la fonctionnalité d’une «Carte dynamique locale» (LDM) dans le contexte du «Domaine délimité géré de manière sécurisée» (BSMD). — spécifie — les caractéristiques générales des objets de données de la LDM (LDM-DO) pouvant être stockés dans une LDM, notamment les informations sur les objets réels tels que les véhicules, les zones de travaux, les zones de ralentissement du trafic, les zones caractérisées par des conditions météorologiques particulières, etc. qui doivent, au minimum, posséder une référence spatiale (localisation) et une référence temporelle. — les fonctions des points d’accès au service fournissant des interfaces d’accès à une LDM dans une station ITS (ITS-S) pour, — les accès sécurisés d’ajout, de mise à jour et de suppression, pour les processus d’application ITS-S, — les accès sécurisés en lecture (requête), pour les processus d’application ITS-S, — les notifications sécurisées (lors de l’abonnement) aux processus d’application ITS-S. — la gestion des accès, — enregistrement, désenregistrement et révocation de manière sécurisée des processus d’application ITS-S au niveau de la LDM — abonnement et annulation des abonnements des processus d’application ITS-S de manière sécurisée, — les procédures d’une LDM tenant compte — des modalités de maintien du contenu et de l’intégrité du magasin de données, — les mécanismes soutenant plusieurs LDM dans une unité de station ITS unique.

General Information

• Status: Published
• Publication Date: 03-Apr-2025
• ICS: 03.220.20 - Road transport
• ICS: 35.240.60 - IT applications in transport
• Technical Committee: ISO/TC 204 - Intelligent transport systems
• Drafting Committee: ISO/TC 204/WG 18 - Cooperative systems
• Current Stage: 6060 - International Standard published
• Start Date: 04-Apr-2025
• Due Date: 04-Apr-2025
• Completion Date: 04-Apr-2025

Relations

• Consolidates: ISO 24583:2022 - Quantitative nuclear magnetic resonance spectroscopy — Purity determination of organic compounds used for foods and food products — General requirements for 1H NMR internal standard method
• Effective Date: 18-Nov-2023
• Revises: ISO 18750:2018 - Intelligent transport systems — Co-operative ITS — Local dynamic map
• Effective Date: 04-Nov-2023

Standards Content (Sample)

International
Standard
ISO 18750
Second edition
Intelligent transport systems —
2025-04
Local dynamic map
Systèmes de transport intelligents — Carte dynamique locale
Reference number
© ISO 2025
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Abbreviated terms . 3
5 Architectural environment . 4
5.1 General .4
5.2 Local dynamic map .4
5.3 LDM in an ITS-S .4
5.4 LDM in an ITS-SU .5
5.5 LDM related processes .7
5.5.1 Synchronization of LDMs .7
5.5.2 Archiving of LDM Data Objects.7
5.6 LDM for road safety and vehicle-to-vehicle applications .7
5.7 Security perspective .8
5.7.1 Authorized access to LDM .8
5.7.2 Initialisation and installation of applications to the BSMD .8
5.7.3 Privacy .9
5.8 An LDM versus other similar functionalities in an ITS-SU .9
6 Functionality . 9
6.1 General .9
6.2 Terms and conventions .9
6.3 Structure of an LDM .10
6.4 LDM Data Storage . . 12
6.5 LDM services .14
6.5.1 Registration, deregistration, and revocation of ITS-S application processes .14
6.5.2 Security checking in access requests .14
6.5.3 Access request management . . .14
6.6 LDM maintenance .17
6.6.1 LDM Area of Maintenance .17
6.6.2 Outdated data management .17
6.7 LDM knowledge base .17
6.7.1 Metadata .17
6.7.2 Utility functions .17
6.8 Interfaces .18
6.8.1 Types of interfaces .18
6.8.2 Parameters of interface functions .18
6.8.3 LDM application management interface . 20
6.8.4 LDM data interface . 22
6.8.5 Security interface . 25
6.8.6 LDM management interface . 26
6.8.7 Service access points .27
7 Procedures .29
7.1 General . 29
7.2 LDM services . 30
7.2.1 Registration, deregistration, and revocation of ITS-S application processes . 30
7.2.2 Security checking in access requests . 30
7.2.3 Access request management . . 30
7.2.4 Second level filtering .32
7.3 LDM maintenance .32
7.3.1 Area management .32

iii
7.3.2 Outdated data removal . 33
7.4 LDM knowledge data base . 33
7.5 Interfaces . 33
7.6 LDM management . 33
7.6.1 Registration of LDM at ITS-S management entity . 33
7.6.2 Multiple ITS-SCUs . 33
Annex A (normative) ASN.1 modules .34
Annex B (normative) LDM Data Dictionary.46
Annex C (informative) Examples of LDM-DOs.48
Annex D (informative) Location-referencing .55
Annex E (informative) Time-referencing .59
Annex F (normative) Implementation Conformance Statement proforma .60
Bibliography . 67

iv
Foreword
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The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the diff
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