Wayside Equipment (Terminator*)
This terminator represents train interface equipment (usually) maintained and operated by the railroad and (usually) physically located at or near a grade crossing. This terminator is the source and destination for HRI 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.
Inputs/Outputs: Architecture Flows* and Data Flows*
Roadway
Wayside Equipment
- hri operational status (Architecture Flow*) - Status of the highway-rail grade crossing equipment including both the current state or mode of operation and the current equipment condition.
Data Flows*: - intersection blockage notification (Architecture Flow*) - Notification that a highway-rail intersection is obstructed and supporting information.
Data Flows*:
Wayside Equipment
Roadway
- arriving train information (Architecture Flow*) - Information for a train approaching a highway-rail intersection that may include direction and allow calculation of approximate arrival time and closure duration.
Data Flows*: - track status (Architecture Flow*) - Current status of the wayside equipment and notification of an arriving train.
Data Flows*:
