Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 24 Jan 1991 | Welwyn Hatfield | 3 | 1 | Slight |
| Sat 2 Mar 1991 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 9 Mar 1991 | Welwyn Hatfield | 1 | 2 | Slight |
| Sun 10 Mar 1991 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 23 Mar 1991 | Welwyn Hatfield | 1 | 1 | Slight |
| Fri 5 Apr 1991 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 8 Apr 1991 | Welwyn Hatfield | 2 | 1 | Serious |
| Thu 2 May 1991 | Welwyn Hatfield | 3 | 1 | Slight |
| Fri 17 May 1991 | Welwyn Hatfield | 3 | 1 | Slight |
| Sun 30 Jun 1991 | Welwyn Hatfield | 2 | 4 | Slight |
| Tue 23 Jul 1991 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 12 Sep 1991 | Welwyn Hatfield | 1 | 1 | Slight |
| Fri 13 Sep 1991 | Welwyn Hatfield | 5 | 2 | Slight |
| Tue 17 Sep 1991 | Welwyn Hatfield | 3 | 1 | Slight |
| Tue 17 Sep 1991 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 14 Oct 1991 | Welwyn Hatfield | 2 | 1 | Slight |
| Sun 3 Nov 1991 | Welwyn Hatfield | 4 | 2 | Slight |
| Sat 16 Nov 1991 | Welwyn Hatfield | 2 | 2 | Serious |
| Mon 18 Nov 1991 | Welwyn Hatfield | 1 | 1 | Serious |
| Thu 21 Nov 1991 | Welwyn Hatfield | 3 | 1 | Slight |
| Wed 27 Nov 1991 | Welwyn Hatfield | 2 | 4 | Slight |
| Fri 29 Nov 1991 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 21 Dec 1991 | Welwyn Hatfield | 1 | 2 | Slight |