| Symbol | Description | Type | Value | Units |
| xn,i | The amount of charging a station i can supply | Decision variables | – | Scaled population |
| [xlat, xlong]T | Location of charging station i | Decision variables | – | Coordinates |
| N | Total number of charging stations (see Appendix A) | Parameter | 1, 2, ∙∙∙, N | Stations |
| wij | Willingness to travel from center j to station i | Distribution | – | – |
| Pj | Location of population center j | Parameter | – | Coordinates |
| oj | Charging demand of population center j (see Appendix A) | Parameter | variable | Scaled population |
| NP | Total number of population centers | Parameter | 16 | Population centers |
| Ri | Road vertex closest to station i | Decision variables | - | Coordinates |
| β | Gaussian Scaling Coefficient | Fitting Coefficient | 0.001 | – |
| || · ||2 | Euclidean distance | Norm Function | – | Coordinate Distance |