Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 15 Feb 2011 | Welwyn Hatfield | 1 | 1 | Serious |
| Tue 1 Mar 2011 | Welwyn Hatfield | 3 | 4 | Serious |
| Sat 14 May 2011 | Welwyn Hatfield | 3 | 1 | Slight |
| Tue 14 Jun 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 14 Jun 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 27 Aug 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 27 Aug 2011 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 3 Dec 2011 | Welwyn Hatfield | 2 | 1 | Slight |