| Variable | Description |
| Model 1 | |
| h | Boundary value every day |
| a | Traffic volume every minute |
| λ | Toll station of each traffic volume every minute (=a/B) |
| mu | The number of the cars detected every minute |
|
| The number of car waiting |
|
| The number of car waiting and paying |
| Model 3 | |
| F | Maximum braking force |
| m | Quality of vehicle |
| c | Ratio coefficient |
| v | Speed |
|
| Travel distance |
| Model 4 | |
| K | Traffic density |
| Ф | Traffic flow |
| λ | Multiple lanes |
|
| Speed smoothly |
|
| Congestion state |
| Model 5 | |
| i | Unit |
| X | Input vector |
| Y | Output vector |
|
| The output of unit |
|
| Network weights |
|
| Expected output |
| δ | Error signal |
|
| Threshold |