This document is the fourth part of the DATEX II European Standard which deals with the publication sub-models within the DATEX II model that support the exchange of variable message sign information.
These publications are intended to support the exchange of status and informational content concerning VMS from the organization controlling the VMS to other organisations providing ITS services or onward information exchange. It is not intended to support the control or configuration of VMS equipment.
This is specified in two sub-models, a DATEX II VMS Table Publication sub-model and a DATEX II VMS Publication sub-model.