Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 9 Jan 1990 | St. Albans | 3 | 1 | Slight |
| Tue 9 Jan 1990 | St. Albans | 3 | 1 | Slight |
| Fri 16 Feb 1990 | North Hertfordshire | 1 | 1 | Slight |
| Fri 16 Mar 1990 | St. Albans | 1 | 1 | Slight |
| Tue 3 Apr 1990 | North Hertfordshire | 2 | 1 | Slight |
| Wed 18 Apr 1990 | St. Albans | 3 | 1 | Slight |
| Sat 21 Apr 1990 | St. Albans | 2 | 1 | Serious |
| Sat 5 May 1990 | St. Albans | 2 | 1 | Slight |
| Thu 17 May 1990 | St. Albans | 1 | 1 | Slight |
| Wed 23 May 1990 | St. Albans | 2 | 1 | Slight |
| Thu 14 Jun 1990 | St. Albans | 2 | 1 | Serious |
| Fri 22 Jun 1990 | St. Albans | 2 | 1 | Slight |
| Wed 4 Jul 1990 | St. Albans | 2 | 1 | Fatal |
| Thu 5 Jul 1990 | North Hertfordshire | 2 | 2 | Slight |
| Wed 1 Aug 1990 | St. Albans | 3 | 1 | Slight |
| Sun 5 Aug 1990 | St. Albans | 2 | 3 | Serious |
| Thu 23 Aug 1990 | St. Albans | 2 | 2 | Serious |
| Sun 9 Sep 1990 | St. Albans | 1 | 2 | Slight |
| Sat 29 Sep 1990 | St. Albans | 4 | 3 | Slight |
| Sat 29 Sep 1990 | St. Albans | 3 | 1 | Slight |
| Thu 25 Oct 1990 | St. Albans | 2 | 1 | Slight |
| Fri 26 Oct 1990 | St. Albans | 1 | 1 | Slight |
| Sat 10 Nov 1990 | North Hertfordshire | 2 | 1 | Slight |
| Mon 12 Nov 1990 | North Hertfordshire | 2 | 1 | Slight |
| Wed 21 Nov 1990 | St. Albans | 2 | 2 | Serious |
| Thu 20 Dec 1990 | St. Albans | 3 | 1 | Slight |
| Sat 22 Dec 1990 | St. Albans | 4 | 1 | Slight |