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:

• WX01: Weather Data Collection
• WX04: Roadway Micro-Prediction

This triple is associated with the following Functional Objects:

• Roadway Environmental Monitoring

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

• tstws-roadway_env_sensor_data
• tstws-roadway_env_sensor_status

This Triple has the following triple relationships:

Communication Solutions

• AU: DMS and RWIS data - DMS and RWIS Comms (0)
• EU: UTMC Data - UTMC (3)
• US: NTCIP Environmental Sensors - SNMPv3/TLS (6)
• US: NTCIP Environmental Sensors - SNMPv1/TLS (7)
• US: NTCIP Environmental Sensors - SNMPv1 (33)

Selected Solution

AU: DMS and RWIS data - DMS and RWIS Comms

Solution Description

ITS Application Entity SA TS 5719			Click gap icons for more info.
Mgmt SA TS 5719	Facilities SA TS 5719	Security SA TS 5719
	TransNet SA TS 5719
	Access IP 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

Security