ISO 18750:2025

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.