Table 2 Detailed information on examples of different sizes.
| Â | Grid map size | Number of riders | Number of shops | Number of customers | Number of orders |
|---|---|---|---|---|---|
Small instance | \(10\times 10\) | 3 | 5 | 10 | 12 |
Medium instance | \(50\times 50\) | 30 | 50 | 100 | 100 |
Large instance | \(100\times 100\) | 100 | 200 | 500 | 500 |
