Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 2 Jan 1991 | East Hertfordshire | 2 | 1 | Slight |
| Wed 16 Jan 1991 | East Hertfordshire | 1 | 1 | Slight |
| Thu 17 Jan 1991 | East Hertfordshire | 3 | 2 | Slight |
| Mon 25 Feb 1991 | Uttlesford | 2 | 1 | Serious |
| Mon 25 Mar 1991 | East Hertfordshire | 1 | 1 | Slight |
| Wed 8 May 1991 | East Hertfordshire | 2 | 3 | Fatal |
| Fri 10 May 1991 | East Hertfordshire | 2 | 1 | Slight |
| Fri 17 May 1991 | Uttlesford | 2 | 1 | Slight |
| Fri 17 May 1991 | East Hertfordshire | 1 | 1 | Fatal |
| Mon 27 May 1991 | Uttlesford | 2 | 2 | Slight |
| Thu 30 May 1991 | East Hertfordshire | 2 | 1 | Slight |
| Fri 7 Jun 1991 | East Hertfordshire | 2 | 1 | Slight |
| Sat 6 Jul 1991 | East Hertfordshire | 1 | 1 | Serious |
| Fri 30 Aug 1991 | East Hertfordshire | 2 | 1 | Slight |
| Tue 10 Sep 1991 | East Hertfordshire | 2 | 1 | Slight |
| Tue 24 Sep 1991 | East Hertfordshire | 2 | 3 | Slight |
| Mon 21 Oct 1991 | East Hertfordshire | 2 | 1 | Slight |
| Mon 28 Oct 1991 | East Hertfordshire | 3 | 1 | Slight |
| Tue 5 Nov 1991 | East Hertfordshire | 2 | 1 | Slight |
| Sun 10 Nov 1991 | East Hertfordshire | 1 | 2 | Slight |
| Tue 19 Nov 1991 | East Hertfordshire | 2 | 1 | Slight |
| Tue 19 Nov 1991 | East Hertfordshire | 2 | 1 | Slight |
| Mon 25 Nov 1991 | East Hertfordshire | 2 | 2 | Serious |
| Fri 6 Dec 1991 | East Hertfordshire | 1 | 1 | Slight |
| Fri 6 Dec 1991 | East Hertfordshire | 1 | 1 | Slight |