Physical Object: Pathway Communications Unit

PCU Communications

Overview
Requirements
Information Flows
Standards

Overview

'PCU Communications' provides basic radio communications between pathway infrastructure and nearby mobile devices. Communications with adjacent field equipment (including other PCUs) and back office centers that monitor and control the PCU are also supported. It supports the lower layers of the OSI stack, specifically the TransNet and SubNet layers of the ARC-IT communications model. Message relay capabilities are also included to improve radio communications range, reliability, and performance.

This functional object is included in the "Pathway Communications Unit" physical object.

This functional object is included in the following service packages:

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

6.8.5.2: Manage Pathway Communications

Requirements

#	Requirement
01	The field device shall provide radio communications between pathway equipment and nearby traveler safety devices and traveler devices.

Information Flows

Source	Flow	Destination
ITS Object	local ITS information	Pathway Communications Unit
Micromobility Vehicle OBE	communications signature	Pathway Communications Unit
Other ITS Objects	local ITS information	Pathway Communications Unit
Pathway Communications Unit	local ITS information	ITS Object
Pathway Communications Unit	communications signature	Micromobility Vehicle OBE
Pathway Communications Unit	local ITS information	Other ITS Objects
Pathway Communications Unit	communications signature	Personal Information Device
Pathway Communications Unit	passive device monitoring data	Transportation Information Center
Personal Information Device	communications signature	Pathway Communications Unit

Standards

Currently, there are no standards associated with the functional object itself though the interfaces may have standards associated with them. Go to the "Information Flows" tab, select one of the Flow names, then go to the Communications Solutions tab and review the Communications solutions and their associated standards for the interfaces of this functional object.