Wayside Equipment

Overview
Triples
Security
Interfaces Diagram
Standards

Overview

'Wayside Equipment' represents train interface equipment (usually) maintained and operated by the railroad and (usually) physically located at or near a grade crossing. It is a source and destination for information for, or about, approaching trains and their crews (e.g. the time at which the train will arrive and the time it will take to clear a crossing, crossing status or warnings, etc.). Generally one wayside equipment interface would be associated with one highway rail intersection. However, multiple crossings may be controlled using information based on data from one wayside equipment interface.

This physical object does not have any functionality defined in ARC-IT, as it exists outside the system functional boundary.

This physical object is included in the following Service Packages:

Triples

Source	Flow	Destination
Connected Vehicle Roadside Equipment	rail crossing blockage notification	Wayside Equipment
Connected Vehicle Roadside Equipment	rail crossing operational status	Wayside Equipment
ITS Roadway Equipment	rail crossing blockage notification	Wayside Equipment
ITS Roadway Equipment	rail crossing operational status	Wayside Equipment
Wayside Equipment	arriving train information	Connected Vehicle Roadside Equipment
Wayside Equipment	track status	Connected Vehicle Roadside Equipment
Wayside Equipment	arriving train information	ITS Roadway Equipment
Wayside Equipment	track status	ITS Roadway Equipment

Security

This physical object has the following security levels for the associated service packages.

Physical Object Security
Security Class	Confidentiality	Integrity	Availability	Service Package
Class 5	Moderate	High	High	Advanced Railroad Grade Crossing
Class 5	Low	High	High	Transit Signal Priority
Class 2	Moderate	Moderate	Moderate	Standard Railroad Grade Crossing

Interfaces Diagram

Standards

Currently, there are no standards associated with the physical object itself though the interfaces may have standards associated with them. For standards related to interfaces, see the specific information flow triple pages.