DS/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.