Other ITS Roadway Equipment --> ITS Roadway Equipment:
traffic detector coordination

Definitions

traffic detector coordination (Information Flow): The direct flow of information between field equipment. This includes information used to configure and control traffic detector systems such as inductive loop detectors and machine vision sensors Raw and/or processed traffic detector data is returned that allows derivation of traffic flow variables (e.g., speed, volume, and density measures) and associated information (e.g., congestion, potential incidents). This flow includes the traffic data and the operational status of the traffic detectors

Other ITS Roadway Equipment (Source Physical Object): Representing another set of ITS Roadway Equipment, 'Other ITS Roadway Equipment' supports 'field device' to 'field device' communication and coordination, and provides a source and destination for information that may be exchanged between ITS Roadway Equipment. The interface enables direct coordination between field equipment. Examples include the direct interface between sensors and other roadway devices (e.g., Dynamic Message Signs) and the direct interface between roadway devices (e.g., between a Signal System Master and Signal System Local equipment) or a connection between an arterial signal system master and a ramp meter controller.

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:

• ST06: HOV/HOT Lane Management
• TM01: Infrastructure-Based Traffic Surveillance
• TM03: Traffic Signal Control
• TM04: Connected Vehicle Traffic Signal System
• TM05: Traffic Metering
• TM08: Traffic Incident Management System
• TM12: Dynamic Roadway Warning
• TM16: Reversible Lane Management
• TM20: Variable Speed Limits
• TM22: Dynamic Lane Management and Shoulder Use
• TM24: Tunnel Management
• TM25: Wrong Way Vehicle Detection and Warning
• TM26: Signal Enforcement

This triple is associated with the following Functional Objects:

• Roadway Basic Surveillance
• Roadway Dynamic Lane Management and Shoulder Use
• Roadway HOV Control
• Roadway Incident Detection
• Roadway Infrastructure Monitoring
• Roadway Reversible Lanes
• Roadway Signal Control
• Roadway Signal Monitoring and Enforcement
• Roadway Traffic Information Dissemination
• Roadway Traffic Metering
• Roadway Variable Speed Limits
• Roadway Warning
• Roadway Wrong Way Vehicle Detection

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

• fors-traffic_sensor_control
• fors-traffic_sensor_data
• fors-traffic_sensor_status

This Triple has the following triple relationships:

Communication Solutions

• US: NTCIP Transportation Sensors - SNMPv3/TLS (5)
• US: NTCIP Transportation Sensors - SNMPv1/TLS (6)
• (None-Data) - Secure Internet (ITS) (32)
• US: NTCIP Transportation Sensors - SNMPv1 (32)

Selected Solution

(None-Data) - Secure Internet (ITS)

Solution Description

ITS Application Entity Development needed			Click gap icons for more info.
Mgmt Bundle: SNMPv3 MIB	Facilities Development needed	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