METR System --> Maint and Constr Vehicle OBE:
METR management information

Definitions

METR management information (Information Flow): If the rule is to be distributed through a specialized vehicle OBE, the METR input device configures and monitors the OBE using the METR management info. While the content of this flow is similar to a combination of the "METR application information" flow and the "METR application status" flow, the mobile nature of the OBE results in different communication characteristics, which results in a different flow.

METR System (Source Physical Object): The 'METR System' creates and maintains electronic versions of traffic rules, regulations, ordinances and statutes that have official status and must be understood by all motor vehicle operators and intelligent vehicles that operate at higher automation levels. This system represents multiple authorities that operate at local, regional, state, and national levels and represents organizations that establish, manage, and enact the traffic code. Each electronic rule is approved, signed, and traceable to a specific rule-maker. Rules are independently verified. Any identified or reported rule discrepancies are analyzed, investigated, and addressed.

Maint and Constr Vehicle OBE (Destination Physical Object): The 'Maint and Constr Vehicle OBE' resides in a maintenance, construction, or other specialized service vehicle or equipment and provides the processing, storage, and communications functions necessary to support highway maintenance and construction. All types of maintenance and construction vehicles are covered, including heavy equipment, supervisory vehicles, unmanned remote controlled field maintenance robots, and sensory platforms that may be wheeled or low altitude aerial vehicles (e.g. drones, balloons). The MCV OBE provides two-way communications between drivers/operators and dispatchers and maintains and communicates current location and status information. A wide range of operational status is monitored, measured, and made available, depending on the specific type of vehicle or equipment. A snow plow for example, would monitor whether the plow is up or down and material usage information. The Maint and Constr Vehicle OBE may also contain capabilities to monitor vehicle systems to support maintenance of the vehicle itself. A separate 'Vehicle OBE' physical object supports the general vehicle safety and driver information capabilities that apply to all vehicles, including maintenance and construction vehicles. The Maint and Constr Vehicle OBE supplements these general capabilities with capabilities that are specific to maintenance and construction vehicles.

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:

This Triple has the following triple relationships:

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

US: NTCIP Roadside Unit - Wireless SNMPv3/TLS

Solution Description

This solution is used within Canada and the U.S.. It combines standards associated with US: NTCIP Roadside Unit with those for I-M: Wireless SNMPv3/TLS. The US: NTCIP Roadside Unit standards include upper-layer standards required to implement center-to-field roadside unit communications. The I-M: Wireless SNMPv3/TLS standards include lower-layer standards that support secure infrastructure-to-mobile communications using simple network management protocol (SNMPv3).

ITS Application Entity
Mind the gap

NTCIP 1218
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Mgmt

NTCIP 1201
Bundle: SNMPv3 MIB
Facilities

NTCIP 1218
ISO 15784-2
Security
Mind the gapMind the gap

IETF RFC 6353
IETF RFC 9456
TransNet
Access
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TransNet TransNet

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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
National This triple should be implemented consistently within the geopolitical region through which movement is essentially free (e.g., the United States, the European Union).

Security

Information Flow Security
  Confidentiality Integrity Availability
Rating Moderate High Moderate
Basis This information could be of interest to a malicious individual who is attempting to determine the best way to accomplish a crime. As such it would be best to not make it easily accessible. If this is compromised, it could result in incorrect rule-related information distribution, which could in turn cause a safety or other serious issue. Occasional outages will be inconvenient but in all cases, safe fallbacks should exist.


Security Characteristics Value
Authenticable True
Encrypt True