ITS Roadway Equipment --> Traffic Management Center:
traffic images
Definitions
traffic images (Information Flow): High fidelity, real-time traffic images suitable for surveillance monitoring by the operator or for use in machine vision applications. This flow includes the images. Meta data that describes the images is contained in another flow.
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:
- PT10: Intermittent Bus Lanes
- ST07: Eco-Lanes Management
- TM01: Infrastructure-Based Traffic Surveillance
- TM03: Traffic Signal Control
- TM05: Traffic Metering
- TM08: Traffic Incident Management System
- TM12: Dynamic Roadway Warning
- TM16: Reversible Lane Management
- TM19: Roadway Closure Management
- TM20: Variable Speed Limits
- TM22: Dynamic Lane Management and Shoulder Use
- TM24: Tunnel Management
- TM25: Wrong Way Vehicle Detection and Warning
- VS08: Queue Warning
This triple is associated with the following Functional Objects:
- Roadway Basic Surveillance
- Roadway Incident Detection
- Roadway Work Zone Safety
- Roadway Work Zone Traffic Control
- TMC Basic Surveillance
- TMC Incident Detection
- TMC Regional Traffic Management
- TMC Traffic Information Dissemination
This Triple is described by the following Functional View Data Flows:
- dynamic_lane_video_image
- incident_video_image
- traffic_video_image
- traffic_video_image_for_display
- video_device_status
This Triple has the following triple relationships:
None |
Communication Solutions
No communications solutions identified.Characteristics
Characteristic | Value |
---|---|
Time Context | Recent |
Spatial Context | Local |
Acknowledgement | False |
Cardinality | Unicast |
Initiator | Destination |
Authenticable | True |
Encrypt | False |
Interoperability | Description |
---|---|
Local | In cases where an interface is normally encapsulated by a single stakeholder, interoperability is still desirable, but the motive is vendor independence and the efficiencies and choices that an open standards-based interface provides. |
Security
Information Flow Security | ||||
---|---|---|---|---|
Confidentiality | Integrity | Availability | ||
Rating | Low | Moderate | Low | |
Basis | Traffic image data is generally intended for public consumption, and in any event is already video captured in the public arena, so this must be LOW. | Generally transportation coordination information should be correct between source and destination, or inappropriate actions may be taken. | While useful, there is no signficant impact if this flow is not available. |
Security Characteristics | Value |
---|---|
Authenticable | True |
Encrypt | False |