Physical Object: ITS Roadway Equipment

Roadway Warning

Overview
Requirements
Information Flows
Standards

Overview

'Roadway Warning' includes the field equipment used to warn drivers approaching hazards on a roadway. Warnings may be generated in response to roadway weather conditions, road surface conditions, traffic conditions including queues, obstacles or animals in the roadway, and any other transient events that can be sensed. The equipment monitors traffic and roadway conditions and may send data to a Traffic Management Center for processing or may process it to determine when a warning should be issued. When it is determined that a warning should be issued, the equipment is used to alert approaching drivers via dynamic warning signs, flashing lights, in-vehicle messages, etc.

This functional object is included in the "ITS Roadway Equipment" physical object.

This functional object is included in the following service packages:

This functional object is mapped to the following Functional View PSpecs:

1.2.7.12: Control Roadway Warning System

Requirements

#	Requirement
01	The field element shall monitor for hazardous traffic conditions, including queues.
02	The field element shall monitor for hazardous road surface and local weather conditions.
03	The field element shall monitor for debris, animals, or other objects in the travel lanes.
04	The field element shall provide collected sensor data to the controlling center.
05	The field element shall autonomously identify potentially hazardous conditions and activate warning signs to approaching motorists.
06	The field element shall receive commands from the controlling center that activate warning signs to approaching motorists.
07	The field element shall collect operational status of the warning system field equipment and report the operational status to the controlling center.
08	The field element shall autonomously identify potentially hazardous conditions and activate warning signs to approaching micromobility users.
08	The field element shall monitor the warning devices and report faults to the controlling center.

Information Flows

Source	Flow	Destination
ITS Roadway Equipment	driver information	Commercial Vehicle Driver
ITS Roadway Equipment	vehicle signage local data	Connected Vehicle Roadside Equipment
ITS Roadway Equipment	driver information	Driver
ITS Roadway Equipment	driver information	Emergency Personnel
ITS Roadway Equipment	driver information	Light Vehicle Driver
ITS Roadway Equipment	driver information	Maint and Constr Vehicle Operator
ITS Roadway Equipment	traveler safety information	MMV User
ITS Roadway Equipment	roadway warning coordination	Other ITS Roadway Equipment
ITS Roadway Equipment	roadway warning system status	Traffic Management Center
ITS Roadway Equipment	driver information	Transit Vehicle Operator
Other ITS Roadway Equipment	roadway warning coordination	ITS Roadway Equipment
Other ITS Roadway Equipment	traffic detector coordination	ITS Roadway Equipment
Other ITS Roadway Equipment	video surveillance coordination	ITS Roadway Equipment
Traffic Management Center	roadway warning system control	ITS Roadway Equipment

Standards

Currently, there are no standards associated with the functional object itself though the interfaces may have standards associated with them.