Connected Vehicle Roadside Equipment --> ITS Roadway Equipment:
intersection status monitoring

Definitions

intersection status monitoring (Information Flow): Current signal phase and timing information for all lanes at a signalized intersection. This flow represents monitoring of communications by a receiver at the intersection to support monitoring for conflicts between actual signal states and RSE communications about those states.

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.

ITS Roadway Equipment (Destination 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.

Included In

This Triple is in the following Service Packages:

• ST08: Eco-Approach and Departure at Signalized Intersections
• TM04: Connected Vehicle Traffic Signal System
• VS13: Intersection Safety Warning and Collision Avoidance

This triple is associated with the following Functional Objects:

• Roadway Signal Control
• RSE Intersection Management
• RSE Intersection Safety

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

• roadside_signal_monitoring

This Triple has the following triple relationships:

Communication Solutions

• US: SAE Other J2735 - Secure Internet (ITS) (12)
• EU: Signal Control Messages - Secure Internet (ITS) (16)
• US: SAE Other J2735 - LTE-V2X WSMP (18)
• EU: Signal Control Messages - BTP/GeoNetworking/G5 (20)
• US: SAE Signal Control Messages - WAVE WSMP (36)

Selected Solution

US: SAE Other J2735 - Secure Internet (ITS)

Solution Description

ITS Application Entity SAE J2735			Click gap icons for more info.
Mgmt Bundle: SNMPv3 MIB	Facilities SAE J2735	Security Secure Session 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