Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 5 Feb 1991 | St. Albans | 3 | 1 | Slight |
| Fri 5 Apr 1991 | Hertsmere | 2 | 1 | Slight |
| Fri 12 Apr 1991 | St. Albans | 2 | 1 | Slight |
| Fri 26 Apr 1991 | Hertsmere | 1 | 1 | Slight |
| Mon 29 Apr 1991 | St. Albans | 2 | 2 | Slight |
| Tue 14 May 1991 | St. Albans | 2 | 2 | Slight |
| Sun 2 Jun 1991 | Hertsmere | 1 | 1 | Slight |
| Thu 13 Jun 1991 | Hertsmere | 2 | 1 | Slight |
| Thu 13 Jun 1991 | St. Albans | 2 | 1 | Slight |
| Wed 19 Jun 1991 | Hertsmere | 2 | 2 | Slight |
| Mon 8 Jul 1991 | Hertsmere | 2 | 1 | Slight |
| Sat 27 Jul 1991 | Hertsmere | 2 | 1 | Slight |
| Tue 30 Jul 1991 | Hertsmere | 2 | 2 | Serious |
| Fri 23 Aug 1991 | Hertsmere | 2 | 2 | Slight |
| Mon 23 Sep 1991 | Hertsmere | 1 | 1 | Fatal |
| Mon 23 Sep 1991 | Hertsmere | 2 | 1 | Slight |
| Mon 23 Sep 1991 | St. Albans | 2 | 1 | Slight |
| Mon 23 Sep 1991 | Hertsmere | 2 | 1 | Slight |
| Mon 30 Sep 1991 | Hertsmere | 1 | 1 | Serious |
| Mon 30 Sep 1991 | Hertsmere | 1 | 1 | Slight |
| Wed 16 Oct 1991 | Hertsmere | 2 | 1 | Slight |
| Wed 16 Oct 1991 | Hertsmere | 2 | 1 | Slight |
| Thu 21 Nov 1991 | Hertsmere | 2 | 1 | Serious |
| Wed 11 Dec 1991 | St. Albans | 1 | 2 | Slight |