Connected Vehicle Roadside Equipment --> Traffic Management Center:
traffic situation data

Definitions

traffic situation data (Information Flow): Current, aggregate traffic data collected from connected vehicles that can be used to supplement or replace information collected by roadside traffic detectors. It includes raw and/or processed reported vehicle speeds, counts, and other derived measures. Raw and/or filtered vehicle control events may also be included to support incident detection.

Connected Vehicle Roadside Equipment (Source Physical Object): 'Connected Vehicle Roadside Equipment' (CV RSE) represents the Connected Vehicle roadside devices (i.e., Roadside Units (RSUs)) equipped with short range wireless (SRW) communications technology, as well as any other supporting equipment that leverage the RSU and are not described by other objects (e.g., a local roadside processor). CVRSE are used to send messages to, and receive messages from, nearby vehicles and personal devices equipped with compatible communications technology. Communications with adjacent field equipment and back office centers that monitor and control the RSE are also supported. This device operates from a fixed position and may be permanently deployed or a portable device that is located temporarily in the vicinity of a traffic incident, road construction, or a special event. It includes a processor, data storage, and communications capabilities that support secure communications with passing vehicles, other field equipment, and centers.

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:

• ST02: Eco-Traffic Signal Timing
• ST03: Eco-Traffic Metering
• ST04: Roadside Lighting
• ST10: Low Emissions Zone Management
• TM02: Vehicle-Based Traffic Surveillance
• TM04: Connected Vehicle Traffic Signal System
• TM21: Speed Harmonization
• VS08: Queue Warning
• VS15: Infrastructure Enhanced Cooperative Adaptive Cruise Control
• VS17: Automated Vehicle Operations

This triple is associated with the following Functional Objects:

• RSE Traffic Monitoring
• TMC Basic Surveillance
• TMC Situation Data Management

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

• vehicle_traffic_data_for_center

This Triple has the following triple relationships:

Communication Solutions

• US: NTCIP Transportation Sensors - SNMPv3/TLS (14)
• (None-Data) - Secure Internet (ITS) (43)
• Data for Distribution (TBD) - Apache Kafka (44)
• Data for Distribution (TBD) - OMG DDS (44)
• (None-Data) - OASIS MQTT (50)
• Data for Distribution (TBD) - OASIS MQTT (50)
• (None-Data) - OASIS AMQP (61)
• Data for Distribution (TBD) - OASIS AMQP (61)

Selected Solution

Data for Distribution (TBD) - OMG DDS

Solution Description

ITS Application Entity Development needed			Click gap icons for more info.
Mgmt OMG DDS	Facilities OMG DDS OMG DDS-RPC OMG DDSI-RTPS	Security OMG DDS-Security
	TransNet IETF RFC 768 IP 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