ISO 18750:2018

Intelligent transport systems - Co-operative ITS - 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 may be stored in an LDM, i.e. information on real objects such as vehicles, road works sections, slow traffic sections, special weather condition sections, etc. 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 to maintain the content and integrity of the data store;
• — mechanisms supporting several LDMs in a single ITS station unit.