METR Verification System --> METR Regulation System:
verified METR information

Definitions

verified METR information (Information Flow): This flow supports the affirmation of, or reporting issues with, METR information that has been subjected to independent verification. When the METR Verification Center successfully completes its verification process, it will notify the requesting METR Regulation Center with a signed transmission.

METR Verification System (Source Physical Object): The 'METR Verification System' is responsible for providing independent verification of the rules defined by a METR Regulation System. It is represented as a distinct physical object since the verification is intended to be independently performed.

METR Regulation System (Destination Physical Object): The 'METR Regulation System' creates and maintains electronic versions of traffic regulations for eventual consumption by traveler systems and other interested parties. Once approved, each rule is signed and traceable to a specific Rule-Maker. Depending on local policies and division of labor, the METR Regulation Center might need to coordinate with a METR Verification Center, a Maintenance and Construction Management System, and METR Discrepancy Handling Centers.

Included In

This Triple is in the following Service Packages:

  • None

This triple is associated with the following Functional Objects:

  • None

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

  • None

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

(None-Data) - OASIS AMQP

Solution Description

This solution is used within the E.U. and the U.S.. It combines standards associated with (None-Data) with those for OASIS AMQP. The (None-Data) standards include an unspecified set of standards at the upper layers. The OASIS AMQP standards include lower-layer standards that support data distribution of specific types of data.

ITS Application Entity
Mind the gapMind the gap

ISO 24315-4
ISO 24315-8
Click gap icons for more info.
Mgmt

OASIS MQTT DMP
Facilities
Mind the gapMind the gapMind the gap

(None)
OASIS MQTT
Security
Mind the gapMind the gap
TransNet
Access

Internet Subnet Alternatives
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Mgmt Mgmt

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Facility Facility

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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 Source
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 High Moderate
Basis May have some PII for internal actors in the METR system, which should not be observed as they could be used as part of phishing or related attacks. Rules could be used to guide vehicle behavior, and if incorrect could lead to vehicles breaking actual rules with potentially highly damaging consequences. Updates are probably infrequent so often this flow can be a less than HIGH availability. In cases of high update (e.g., work zones, incidents), it could be HIGH.


Security Characteristics Value
Authenticable True
Encrypt True