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Austin Regional ITS Architecture |
TxDOT TTA Customer Service Center and TxDOT TTA Toll Plazas(E) = Existing Flow
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| Source | Architecture Flows | Destination |
| TxDOT TTA Customer Service Center | toll instructions (P) | TxDOT TTA Toll Plazas |
| TxDOT TTA Toll Plazas | toll transactions (P) | TxDOT TTA Customer Service Center |