| Source Element | Destination Element | Flow |
|---|
| HERE Detector Information ISP | East–West Gateway COG Archive Data System | local situation data |
|---|
| Missouri DOT Gateway Guide TMC | local situation data |
| Illinois DOT Road Weather Information Systems | Illinois DOT Maintenance Center | environmental situation data |
|---|
| Illinois DOT Traffic Field Equipment | Illinois DOT Maintenance Center | environmental situation data |
|---|
| Madison County Local Jurisdictional Traffic Engieering Department | vehicle signage application status |
| Monroe County Local Jurisdictional Traffic Engineering Department | vehicle signage application status |
| Illinois DOT Traffic Signal | Madison County Local Jurisdictional Traffic Engieering Department | vehicle signage application status |
|---|
| St Clair County Local Jurisdictional Traffic Engineering Department | vehicle signage application status |
| Madison County Local Jurisdictional Traffic Engieering Department | Illinois DOT Traffic Signal | vehicle signage application info |
|---|
| Missouri DOT – Tunnel Control Center (Lindbergh Blvd) | Missouri DOT Dynamic Message Signs | vehicle signage application info |
|---|
| Missouri DOT – Tunnel Control Center(Lindbergh Blvd) Field Equipment | Missouri DOT Maintenance Center | environmental situation data |
|---|
| Missouri DOT Dynamic Message Signs | Missouri DOT Gateway Guide TMC | local situation data |
|---|
| Missouri DOT Gateway Guide TMC | HERE Detector Information ISP | traveler information application info |
|---|
| Missouri DOT Road Weather Information Systems | Missouri DOT Maintenance Center | environmental situation data |
|---|
| Missouri DOT Traffic Field Equipment | Missouri DOT Gateway Guide TMC | local situation data |
|---|
| Missouri DOT Gateway Guide TMC | traffic situation data |
| Monroe County Local Jurisdictional Traffic Engineering Department | Illinois DOT Traffic Field Equipment | vehicle signage application info |
|---|
| St Charles County Local Jurisdiction Traffic Signal | St Charles County Gateway Green Light System | traffic situation data |
|---|
| St Charles County Traffic Operations Center | traffic situation data |
| St Charles County Traffic Field Equipment | St Charles County Gateway Green Light System | traffic situation data |
|---|
| St Charles County Traffic Operations Center | traffic situation data |
| St Charles County Traffic Signal | St Charles County Traffic Operations Center | traffic situation data |
|---|
| St Clair County Local Jurisdictional Traffic Engineering Department | Illinois DOT Traffic Signal | vehicle signage application info |
|---|