ISO/TS 18750:2015- describes the functionality of a "Local Dynamic Map" (LDM) in the context of the "Bounded Secured Managed Domain" (BSMD), and- 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, and - management access, - secure registration, de-registration, and revocation of ITS-S application processes at LDM, and- 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, and - mechanisms supporting several LDMs in a single ITS station unit.