|
| Symbol | Description |
|
| Transport mode set |
| Network node set |
| Transshipment node set |
|
| Total quantity of cargoes |
| Transport cost from node to node in mode per unit cargo (¥/kg) |
| Transshipment cost from mode to mode in node per unit cargo (¥/kg) |
| Refrigeration costs generated during transport per hour (¥/h) |
| Refrigeration costs generated during transshipment per hour (¥/h) |
| The price per unit cargo (¥/kg) |
| The carbon tax per unit CO2 (¥/kgCO2) |
| Carbon emission from node to node in mode per unit distance (kgCO2/km) |
| Carbon emission from mode to mode in node per unit cargo (kgCO2/kg) |
| Carbon emission of refrigeration equipment per unit cargo and hour (kgCO2/kg·h) |
| Transport mileage from node to node in mode |
| Transport speed from node to node in mode |
| Transport time from node to node in mode |
| Transshipment time from mode to mode in node |
| Time uncertainty coefficient |
| The proportion of food damage |
| The freshness decay coefficient |
|
| Binary value, if mode k is selected from node to node , the value is 1, 0 if is otherwise |
| Binary value, if the mode changes from to in node i, the value is 1, 0 if is otherwise. |
|
