ITS Roadway Equipment --> Surface Transportation Weather Service:
environmental sensor data

Definitions

environmental sensor data (Information Flow): Current road conditions (e.g., surface temperature, subsurface temperature, moisture, icing, treatment status) and surface weather conditions (e.g., air temperature, wind speed, precipitation, visibility) as measured and reported by fixed and/or mobile environmental sensors. Operational status of the sensors is also included.

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.

Surface Transportation Weather Service (Destination Physical Object): The 'Surface Transportation Weather Service' represents the providers of value-added sector-specific meteorological services. These providers utilize National Weather Service data and predictions, road condition information and local environmental data provided by traffic management or maintenance organizations, and their own models to provide surface transportation related weather observations and forecasts including pavement temperature and conditions.

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

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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Access Access

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ITS Application ITS Application

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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 True
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 Little to no impact if this data is observed This data should be correct, as it may be used to establish safe speeds and determine road treatments. Updates are valuable only if they are timely.


Security Characteristics Value
Authenticable True
Encrypt False