Emergency Vehicle OBE --> Connected Vehicle Roadside 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.

Connected Vehicle Roadside Equipment (Destination 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.

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
• RSE Intersection Management

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

• connected_ev_roadside_highway_priority_request
• connected_ev_roadside_ramp_priority_request
• connected_ev_roadside_signal_priority_request

This Triple has the following triple relationships:

Communication Solutions

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

Selected Solution

EU: Signal Control Messages - G5 TCP

Solution Description

ITS Application Entity SAE J2735 ISO 19091 ETSI 102 894-2			Click gap icons for more info.
Mgmt Bundle: G5 Congestion Control Management	Facilities ETSI 103 301	Security Bundle: ETSI ITS-S Security Architecture
	TransNet Bundle: GeoNetworking IPv6 IETF RFC 9293
	Access Bundle: ETSI ITS-G5

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