Wayside Equipment --> ITS Roadway Equipment:
track status

Definitions

track status (Information Flow): Current status of the wayside equipment and notification of an arriving train.

Wayside Equipment (Source Physical Object): '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.

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:

• PT09: Transit Signal Priority
• TM13: Standard Railroad Grade Crossing
• TM14: Advanced Railroad Grade Crossing

This triple is associated with the following Functional Objects:

• Roadway Advanced Rail Crossing
• Roadway Standard Rail Crossing
• Roadway Transit Signal Control

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

• fwe-approaching_train_announcement
• fwe-wayside_equipment_status

This Triple has the following triple relationships:

Communication Solutions

• (None-Data) - Secure Internet (ITS) (43)

Selected Solution

(None-Data) - Secure Internet (ITS)

Solution Description

ITS Application Entity Development needed			Click gap icons for more info.
Mgmt Bundle: SNMPv3 MIB	Facilities Development needed	Security Secure Session Alternatives
	TransNet IP Alternatives Internet Transport Alternatives
	Access Internet Subnet Alternatives

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