| 1 | 501 | West - 501B Queen Replacement Bus towards York | 08:03–08:40 | 8458 | observed | 6991020 |
| 2 | 501 | East - 501B Queen Replacement Bus towards Kingston Rd | 08:44–09:13 | 8458 | observed | 100385020 |
| 3 | 501 | West - 501B Queen Replacement Bus towards York | 09:19–09:56 | 8458 | observed | 35577020 |
| 4 | 501 | East - 501B Queen Replacement Bus towards Kingston Rd | 09:58–10:31 | 8458 | observed | 84214020 |
| 5 | 501 | West - 501B Queen Replacement Bus towards York | 10:39–11:16 | 8458 | observed | 15724020 |
| 6 | 501 | East - 501B Queen Replacement Bus towards Kingston Rd | 11:18–11:51 | 8458 | observed | 25655020 |
| 7 | 501 | West - 501B Queen Replacement Bus towards York | 11:59–12:36 | 8458 | observed | 30696020 |
| 8 | 501 | East - 501B Queen Replacement Bus towards Kingston Rd | 12:38–13:11 | 8458 | observed | 92262020 |
| 9 | 501 | West - 501B Queen Replacement Bus towards York | 13:19–13:56 | 8458 | observed | 12637020 |
| 10 | 501 | East - 501B Queen Replacement Bus towards Kingston Rd | 13:58–14:31 | 8458 | observed | 29148020 |
| 11 | 501 | West - 501B Queen Replacement Bus towards York | 14:39–15:16 | 8458 | observed | 43104020 |
| 12 | 501 | East - 501B Queen Replacement Bus towards Kingston Rd | 15:18–15:55 | 8458 | observed | 54746020 |
| 13 | 501 | West - 501B Queen Replacement Bus towards York | 16:04–16:45 | 8458 | observed | 19475020 |
| 14 | 501 | East - 501B Queen Replacement Bus towards Kingston Rd | 16:47–17:24 | 8458 | observed | 68313020 |
| 15 | 501 | West - 501B Queen Replacement Bus towards York | 17:35–18:16 | 8458 | observed | 55701020 |
| 16 | 501 | East - 501B Queen Replacement Bus towards Kingston Rd | 18:18–18:55 | 8458 | observed | 55894020 |