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IEEE P1570: Standard for Interface Between the Rail Subsystem and the Highway Subsystem at a Highway Rail Intersection |
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| Source Element | Destination Element | Flow |
|---|---|---|
| City of Laredo Field Equipment | Railroad Wayside HRI equipment | track status |
| Railroad Wayside HRI equipment | City of Laredo Field Equipment | hri operational status |
| TxDOT Laredo Traffic Signals | hri operational status | |
| TxDOT Laredo Traffic Signals | Railroad Wayside HRI equipment | track status |
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