| Source Element | Destination Element | Flow |
|---|
| City of Elizabethton DMS | City of Elizabethton TOC | roadway information system status |
| City of Elizabethton TOC | City of Elizabethton DMS | roadway information system data |
| City of Johnson City DMS | City of Johnson City TOC | roadway information system status |
| City of Johnson City Portable DMS | City of Johnson City TOC | roadway information system status |
| City of Johnson City TOC | City of Johnson City DMS | roadway information system data |
| City of Johnson City Portable DMS | roadway information system data |
| TDOT DMS | TDOT Region 1 TMC - Knoxville | roadway information system status |
| TDOT HAR | TDOT Region 1 TMC - Knoxville | roadway information system status |
| TDOT Ramp Metering Equipment | TDOT Region 1 TMC - Knoxville | roadway information system status |
| TDOT Region 1 TMC - Knoxville | TDOT DMS | roadway information system data |
| TDOT HAR | roadway information system data |
| TDOT Ramp Metering Equipment | roadway information system data |
| TDOT Smart Work Zone Equipment | roadway information system data |
| TDOT Smart Work Zone Equipment | TDOT Region 1 TMC - Knoxville | roadway information system status |