| Source Element | Destination Element | Flow |
|---|
| Lacey ITS Roadway Equipment | Lacey Traffic Management System | right-of-way request notification |
| Lacey Traffic Management System | signal control status |
| Lacey Traffic Management System | signal fault data |
| Lacey Traffic Management System | Lacey ITS Roadway Equipment | signal control commands |
| Lacey ITS Roadway Equipment | signal control device configuration |
| Lacey ITS Roadway Equipment | signal control plans |
| Lacey ITS Roadway Equipment | signal system configuration |
| Thurston County ITS Roadway Equipment | signal control commands |
| Thurston County ITS Roadway Equipment | signal control device configuration |
| Thurston County ITS Roadway Equipment | signal control plans |
| Thurston County ITS Roadway Equipment | signal system configuration |
| Olympia ITS Roadway Equipment | Olympia Traffic Management System | right-of-way request notification |
| Olympia Traffic Management System | signal control status |
| Olympia Traffic Management System | signal fault data |
| Olympia Traffic Management System | Olympia ITS Roadway Equipment | signal control commands |
| Olympia ITS Roadway Equipment | signal control device configuration |
| Olympia ITS Roadway Equipment | signal control plans |
| Olympia ITS Roadway Equipment | signal system configuration |
| Thurston County ITS Roadway Equipment | signal control commands |
| Thurston County ITS Roadway Equipment | signal control device configuration |
| Thurston County ITS Roadway Equipment | signal control plans |
| Thurston County ITS Roadway Equipment | signal system configuration |
| Thurston County ITS Roadway Equipment | Lacey Traffic Management System | right-of-way request notification |
| Lacey Traffic Management System | signal control status |
| Lacey Traffic Management System | signal fault data |
| Olympia Traffic Management System | right-of-way request notification |
| Olympia Traffic Management System | signal control status |
| Olympia Traffic Management System | signal fault data |
| Tumwater ITS Roadway Equipment | Tumwater Traffic Management System | right-of-way request notification |
| Tumwater Traffic Management System | signal control status |
| Tumwater Traffic Management System | signal fault data |
| Tumwater Traffic Management System | Tumwater ITS Roadway Equipment | signal control commands |
| Tumwater ITS Roadway Equipment | signal control device configuration |
| Tumwater ITS Roadway Equipment | signal control plans |
| Tumwater ITS Roadway Equipment | signal system configuration |
| WSDOT ITS Roadway Equipment | WSDOT Olympic Region Signal Shop | right-of-way request notification |
| WSDOT Olympic Region Signal Shop | signal control status |
| WSDOT Olympic Region Signal Shop | signal fault data |
| WSDOT Olympic Region Signal Shop | WSDOT ITS Roadway Equipment | signal control commands |
| WSDOT ITS Roadway Equipment | signal control device configuration |
| WSDOT ITS Roadway Equipment | signal control plans |
| WSDOT ITS Roadway Equipment | signal system configuration |