Traffic Management Center --> Other Traffic Management Centers:
device status

This triple is bi-directional. See also Other Traffic Management Centers --> Traffic Management Center: device status

Definition
Included In
Communication Solutions
Characteristics
Security

Definitions

device status (Information Flow): Status information from devices

Traffic Management Center (Source Physical Object): The 'Traffic Management Center' monitors and controls traffic and the road network. It represents centers that manage a broad range of transportation facilities including freeway systems, rural and suburban highway systems, and urban and suburban traffic control systems. It communicates with ITS Roadway Equipment and Connected Vehicle Roadside Equipment (RSE) to monitor and manage traffic flow and monitor the condition of the roadway, surrounding environmental conditions, and field equipment status. It manages traffic and transportation resources to support allied agencies in responding to, and recovering from, incidents ranging from minor traffic incidents through major disasters.

Other Traffic Management Centers (Destination Physical Object): Representing another Traffic Management Center, 'Other Traffic Management Centers' is intended to provide a source and destination for information exchange between peer (e.g. inter-regional) traffic management functions. It enables traffic management activities to be coordinated across different jurisdictional areas.

Included In

This Triple is in the following Service Packages:

This triple is associated with the following Functional Objects:

This Triple is described by the following Functional View Data Flows:

totm-device_status

This Triple has the following triple relationships:

None

Communication Solutions

Solutions are sorted in ascending Gap Severity order. The Gap Severity is the parenthetical number at the end of the solution.

Selected Solution

EU: DATEX - DATEX Messaging

Solution Description

This solution is used within the E.U.. It combines standards associated with EU: DATEX with those for C-C: DATEX Messaging. The EU: DATEX standards include upper-layer standards required to exchange and share data and information in the field of traffic and travel. The C-C: DATEX Messaging standards include lower-layer standards that support partially secure communications between two centers as commonly used in Europe.

ITS Application Entity Bundle: DATEX			Click gap icons for more info.
Mgmt Bundle: SNMPv3 MIB W3C WSDL 1.1	Facilities No Standard Needed	Security IETF RFC 8446
	TransNet IP Alternatives IETF RFC 9293
	Access Internet Subnet Alternatives

Note that some layers might have alternatives, in which case all of the gap icons associated with every alternative may be shown on the diagram, but the solution severity calculations (and resulting ordering of solutions) includes only the issues associated with the default (i.e., best, least severe) alternative.

Characteristics

Characteristic	Value
Time Context	Recent
Spatial Context	Regional
Acknowledgement	True
Cardinality	Unicast
Initiator	Destination
Authenticable	True
Encrypt	True

Interoperability	Description
Regional	Interoperability throughout the geopolitical region is highly desirable, but if implemented differently in different transportation management jurisdictions, significant benefits will still accrue in each jurisdiction. Regardless, this Information Flow Triple should be implemented consistently within a transportation jurisdiction (i.e., the scope of a regional architecture).

Security

Information Flow Security
	Confidentiality	Integrity	Availability
Rating	Moderate	Moderate	Low
Basis	Device status information should be concealed, as an unauthorized observer could use this to reverse engineer device control systems.	info needs to be accurate and should not be tampered but should be able to cope with some bad data' could delay maintenance actions or waste resources checking devices that are actually in good status	status infor should be timely and readily available, but should have very limited consequences if not

Security Characteristics	Value
Authenticable	True
Encrypt	True

Traffic Management Center --> Other Traffic Management Centers:device status