ITS Roadway Equipment --> Traffic Management Center:
traffic image meta data

Definitions

traffic image meta data (Information Flow): Meta data that describes traffic images. Traffic images (video) are in another flow.

ITS Roadway Equipment (Source Physical Object): 'ITS Roadway Equipment' represents the ITS equipment that is distributed on and along the roadway that monitors and controls traffic and monitors and manages the roadway. This physical object includes traffic detectors, environmental sensors, traffic signals, highway advisory radios, dynamic message signs, CCTV cameras and video image processing systems, grade crossing warning systems, and ramp metering systems. Lane management systems and barrier systems that control access to transportation infrastructure such as roadways, bridges and tunnels are also included. This object also provides environmental monitoring including sensors that measure road conditions, surface weather, and vehicle emissions. Work zone systems including work zone surveillance, traffic control, driver warning, and work crew safety systems are also included.

Traffic Management Center (Destination 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.

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: UTMC Data - UTMC

Solution Description

This solution is used within the E.U.. It combines standards associated with EU: UTMC Data with those for I-F: UTMC. The EU: UTMC Data standards include upper-layer standards required to implement center-to-field communications using the UTMC Framework. The I-F: UTMC standards include lower-layer standards that support secure center-to-field and field-to-field communications using simple network management protocol (SNMPv2). While SNMPv2 offers some security capabilities, implementations are strongly encouraged to use SNMPv3 to ensure adequate security.

ITS Application Entity

UTMC TS004.006
Click gap icons for more info.

Mgmt

IETF RFC 1907
Facilities
Security
Mind the gap

IETF RFC 9147
TransNet

IETF RFC 768
IP Alternatives
Access

Internet Subnet Alternatives
TransNet TransNet

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Mgmt Mgmt

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Facility Facility

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Security Security

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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 Local
Acknowledgement False
Cardinality Unicast
Initiator Destination
Authenticable True
Encrypt False


Interoperability Description
Local In cases where an interface is normally encapsulated by a single stakeholder, interoperability is still desirable, but the motive is vendor independence and the efficiencies and choices that an open standards-based interface provides.

Security

Information Flow Security
  Confidentiality Integrity Availability
Rating Low Moderate Moderate
Basis Traffic image data is generally intended for public consumption, and in any event is already video captured in the public arena, so this must be LOW. While accuracy of this data is important for decision making purposes, applications should be able to cfunction without it. Thus MODERATE generally. While accuracy of this data is important for decision making purposes, applications should be able to function without it. Thus MODERATE generally.


Security Characteristics Value
Authenticable True
Encrypt False