Emergency Vehicle OBE --> ITS Roadway Equipment:
local signal preemption request

Definitions

local signal preemption request (Information Flow): Direct control signal or message to a signalized intersection that results in preemption of the current control plan and grants right-of-way to the requesting vehicle.

Emergency Vehicle OBE (Source Physical Object): The 'Emergency Vehicle On-Board Equipment' (OBE) resides in an emergency vehicle and provides the processing, storage, and communications functions that support public safety-related connected vehicle applications. It represents a range of vehicles including those operated by police, fire, and emergency medical services. In addition, it represents other incident response vehicles including towing and recovery vehicles and freeway service patrols. It includes two-way communications to support coordinated response to emergencies. A separate 'Vehicle OBE' physical object supports the general vehicle safety and driver information capabilities that apply to all vehicles, including emergency vehicles. The Emergency Vehicle OBE supplements these general capabilities with capabilities that are specific to emergency vehicles.

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:

• PS03: Emergency Vehicle Preemption

This triple is associated with the following Functional Objects:

• EV On-Board En Route Support
• Roadway Signal Preemption

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

• emergency_vehicle_preemptions

This Triple has the following triple relationships:

Communication Solutions

• EU: Signal Control Messages - G5 TCP (9)
• Proprietary Data - Proprietary Comm (16)
• US: SAE Signal Preemption - LTE-V2X TCP (23)
• US: SAE Signal Preemption - WAVE TCP (36)

Selected Solution

US: SAE Signal Preemption - LTE-V2X TCP

Solution Description

ITS Application Entity SAE J2735 ISO 19091 SAE J2945/B CTI 4501			Click gap icons for more info.
Mgmt SAE J3161 3GPP 24.301 3GPP 36.331	Facilities SAE J2735 SAE J2945	Security Bundle: IEEE 1609.2
	TransNet Bundle: IPv6 IETF RFC 9293
	Access Bundle: 3GPP LTE-V2X

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