This document identifies traffic management interfaces between central stations and specifies related ITS communication profiles enabling standardized data exchange over these communication interfaces, applicable for a variety of platforms including ITS station units (ITS-SUs) compliant with ISO 21217:2014. This document further specifies requirements on encoding of data. These traffic management interfaces enable the provision of appropriate and relevant traffic information, e.g. congestion and travel times, to users across a variety of platforms; exchange of data such as: network performance data, e.g. traffic conditions, travel times, and planned and unplanned events and incidents, e.g. roadworks, closures of roads, bridges, and tunnels, bad weather, road surface conditions; This document recognizes specifications from DATEX II in order to avoid duplicate specifications. In doing so, this document aligns with existing products of CEN/TC 278/WG 8 and the additional work being undertaken within the DATEX community.