TMC - Wide Area Broadcast

Description:

This solution is used within Australia, Canada, the E.U. and the U.S.. It combines standards associated with TMC with those for C-X: Wide Area Broadcast. The TMC standards include upper-layer standards required to support multi-modal information services to the vehicle. The C-X: Wide Area Broadcast standards include lower-layer standards that support one entity broadcasting information to all wireless devices over an area that covers at least a metropolitan area without any expectation of acknowledgement or response; security is provided by the upper-layers.

Relevant Regions:

• Australia
• Canada
• European Union
• United States

Comm Profile: C-X: Wide Area Broadcast

Comm Class: WAN - Wide Area Network

Level	Standard
Access	WAW Broadcast Alternatives
Mgmt	Proprietary
Security	Proprietary
TransNet	Proprietary

Data Profile: TMC

Level	Standard
Facilities	ISO 14819-1 RDS-TMC Protocol
ITS Application Entity	ISO 14819-2 RDS-TMC Codes
ITS Application Entity	ISO 14819-3 RDS-TMC Location Ref
Security	ISO 14819-6 RDS-TMC Encryption

Solution Issues Severity: 4

Solution Issues:

Default	Severity	Name	Type	Description
True	Low	Ubiquitous broadcast technology	SubNet Gap	With the continual enhancement of broadcast technologies and a mixture of free and subscriber-based systems, it is difficult to identify any single technology that can be used to reliably reach the bulk of drivers in a timely manner.
True	Medium	Security inadequate	Security Gap	The solution does not provide adequate communications security for the information triple, which potentially jeopardizes C-ITS operations.

Solution to Triples

Source	Flow	Destination
Transportation Information Center	broadcast traveler information	Personal Information Device
Transportation Information Center	broadcast traveler information	Vehicle