Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 9 Jan 1990 | East Hertfordshire | 2 | 1 | Slight |
| Mon 15 Jan 1990 | East Hertfordshire | 1 | 1 | Slight |
| Tue 13 Feb 1990 | East Hertfordshire | 2 | 1 | Slight |
| Tue 3 Apr 1990 | East Hertfordshire | 3 | 2 | Serious |
| Mon 9 Apr 1990 | East Hertfordshire | 2 | 1 | Serious |
| Sat 14 Apr 1990 | East Hertfordshire | 3 | 2 | Slight |
| Fri 27 Apr 1990 | East Hertfordshire | 2 | 1 | Serious |
| Fri 4 May 1990 | East Hertfordshire | 2 | 1 | Slight |
| Tue 22 May 1990 | East Hertfordshire | 1 | 1 | Serious |
| Tue 22 May 1990 | East Hertfordshire | 1 | 1 | Serious |
| Wed 23 May 1990 | East Hertfordshire | 2 | 1 | Slight |
| Wed 23 May 1990 | East Hertfordshire | 2 | 1 | Slight |
| Sat 23 Jun 1990 | East Hertfordshire | 2 | 1 | Slight |
| Tue 17 Jul 1990 | East Hertfordshire | 1 | 1 | Serious |
| Wed 25 Jul 1990 | East Hertfordshire | 2 | 1 | Slight |
| Wed 22 Aug 1990 | East Hertfordshire | 1 | 1 | Slight |
| Wed 29 Aug 1990 | East Hertfordshire | 1 | 1 | Serious |
| Thu 30 Aug 1990 | East Hertfordshire | 2 | 1 | Slight |
| Sun 9 Sep 1990 | East Hertfordshire | 2 | 1 | Serious |
| Mon 24 Sep 1990 | East Hertfordshire | 1 | 1 | Slight |
| Sun 30 Sep 1990 | East Hertfordshire | 1 | 1 | Serious |
| Tue 9 Oct 1990 | East Hertfordshire | 2 | 1 | Slight |
| Sat 27 Oct 1990 | East Hertfordshire | 1 | 2 | Slight |
| Tue 30 Oct 1990 | East Hertfordshire | 3 | 1 | Slight |
| Fri 2 Nov 1990 | East Hertfordshire | 2 | 1 | Slight |
| Mon 5 Nov 1990 | East Hertfordshire | 2 | 2 | Serious |
| Tue 27 Nov 1990 | East Hertfordshire | 1 | 1 | Slight |
| Fri 14 Dec 1990 | East Hertfordshire | 2 | 1 | Slight |
| Mon 17 Dec 1990 | East Hertfordshire | 1 | 1 | Slight |
| Tue 18 Dec 1990 | East Hertfordshire | 1 | 1 | Serious |