| | b = 3 |
| | , (short-distance routing) | | , (short-distance routing) | | , , , (short-distance routing) | | , , (long-distance routing) | | , , (long-distance routing) | | , , (long-distance routing) | | , , j = 1, 2, 3, 4 |
| | | , , (short-distance routing) | | , , (long-distance routing) | | , , |
| | k = 1, 2 | | , and |
| | V = {35, 55, 75} |
| | per mile | | per mile |
| | , , h = 1, …, 5 |
|
|
