| Source Element |
Destination Element |
Flow |
| City of Brownsville Field Equipment |
Rail Operators Wayside Equipment |
track status |
| City of Harlingen Field Equipment |
Rail Operators Wayside Equipment |
arriving train information |
| Rail Operators Wayside Equipment |
track status |
| City of McAllen Field Equipment |
Rail Operators Wayside Equipment |
track status |
| Rail Operators Wayside Equipment |
City of Brownsville Field Equipment |
hri operational status |
| City of Harlingen Field Equipment |
hri operational status |
| City of Harlingen Field Equipment |
intersection blockage notification |
| City of McAllen Field Equipment |
hri operational status |
| TxDOT Pharr District Traffic Signals |
hri operational status |
| TxDOT Pharr District Traffic Signals |
Rail Operators Wayside Equipment |
track status |