Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 6 Jan 2011 | Welwyn Hatfield | 1 | 1 | Slight |
| Thu 6 Jan 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 12 Feb 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 14 Mar 2011 | Welwyn Hatfield | 1 | 1 | Serious |
| Fri 20 May 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 17 Jun 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 17 Jun 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 27 Jun 2011 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 1 Aug 2011 | Welwyn Hatfield | 2 | 2 | Slight |
| Wed 17 Aug 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 24 Aug 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 6 Oct 2011 | Welwyn Hatfield | 2 | 5 | Slight |
| Tue 25 Oct 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 25 Oct 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 5 Nov 2011 | Welwyn Hatfield | 3 | 2 | Slight |
| Tue 6 Dec 2011 | Welwyn Hatfield | 2 | 2 | Slight |
| Tue 6 Dec 2011 | Welwyn Hatfield | 2 | 2 | Slight |
| Wed 14 Dec 2011 | Welwyn Hatfield | 2 | 1 | Slight |