| Source Element | Destination Element | Flow |
|---|
| Bridge Operations Center Field Devices | Bridge Operations Centers | traffic metering status |
| Bridge Operations Centers | Bridge Operations Center Field Devices | traffic metering control |
| Local Field Devices | Local Traffic Management Systems | traffic metering status |
| Local Traffic Management Systems | Local Field Devices | traffic metering control |
| NHDOT Field Devices | Statewide Transportation Management Center | traffic metering status |
| Statewide Transportation Management Center | NHDOT Field Devices | traffic metering control |