Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 21 Feb 1991 | East Hertfordshire | 1 | 1 | Slight |
| Sun 24 Mar 1991 | East Hertfordshire | 2 | 1 | Slight |
| Wed 22 May 1991 | East Hertfordshire | 2 | 1 | Slight |
| Thu 6 Jun 1991 | Broxbourne | 2 | 1 | Serious |
| Fri 7 Jun 1991 | East Hertfordshire | 2 | 1 | Slight |
| Thu 27 Jun 1991 | Broxbourne | 2 | 1 | Slight |
| Tue 2 Jul 1991 | Broxbourne | 2 | 1 | Slight |
| Wed 31 Jul 1991 | East Hertfordshire | 1 | 2 | Slight |
| Fri 23 Aug 1991 | Broxbourne | 2 | 1 | Slight |
| Mon 4 Nov 1991 | Broxbourne | 2 | 1 | Slight |