Multi-Access Edge Computing --> ITS Roadway Equipment:
signal priority service request

Definitions

signal priority service request (Information Flow): A service request for vehicle priority issued to a traffic signal controller. The request includes the priority level (preemption is the highest possible priority), and may include other parameters such as the desired time and duration of service, and the intended travel path through the intersection. This flow also allows the originator to cancel a previously issued request for priority.

Multi-Access Edge Computing (Source Physical Object): 'Multi-Access Edge Computing' ((MEC) previously known as mobile edge computing) represents computing devices that operate and are managed like a cloud server, but are deployed at the edge of a network (typically a cellular network, but it could be any network). While not in strict proximity to the transportation network, these systems do benefit from vastly decreased distances to the roadway compared to central systems, and so can provide lower latency than strictly backoffice systems

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:

• CF06: Freight Signal Priority
• MC11: Maintenance and Construction Signal Priority
• PS03: Emergency Vehicle Preemption
• PT09: Transit Signal Priority

This triple is associated with the following Functional Objects:

• None

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

• None

This Triple has the following triple relationships:

Communication Solutions

Characteristics

Security