ITS Roadway Equipment --> Traffic Management Center:
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.

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.

Included In

This Triple is in the following Service Packages:

• CVO10: Road Weather Information for Freight Carriers
• ST02: Eco-Traffic Signal Timing
• ST03: Eco-Traffic Metering
• TM20: Variable Speed Limits
• VS05: Curve Speed Warning
• VS07: Road Weather Motorist Alert and Warning
• VS08: Queue Warning
• VS15: Infrastructure Enhanced Cooperative Adaptive Cruise Control
• VS16: Automated Vehicle Operations
• WX01: Weather Data Collection
• WX03: Spot Weather Impact Warning
• WX04: Roadway Micro-Prediction

This triple is associated with the following Functional Objects:

• Roadway Environmental Monitoring
• TMC Environmental Monitoring
• TMC Road Weather Micro-Prediction

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

• environment_sensor_data
• environmental_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)
• Data for Distribution (TBD) - Apache Kafka (36)
• Data for Distribution (TBD) - OMG DDS (36)
• Data for Distribution (TBD) - OASIS MQTT (42)
• Data for Distribution (TBD) - OASIS AMQP (45)

Selected Solution

Data for Distribution (TBD) - OASIS AMQP

Solution Description

ITS Application Entity Development needed			Click gap icons for more info.
Mgmt Development needed	Facilities OASIS AMQP	Security IP Security Alternatives
	TransNet IP Alternatives Internet Transport Alternatives
	Access Internet Subnet 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