approaching_train_announcement

This data flow contains information about a specific train that is approaching a specific grade crossing and is used by the Advise and Protect Train Crews process to manage HRI traffic.

Sub Data Flows

Primitive Element

Parent Data Flows

None

Associated PSpecs

1.6.3.1 - Interact with Wayside Systems (Out)
1.6.3.2 - Advise and Protect Train Crews (In)

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Last Updated 5/5/2016