Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 12 Jan 1990 | Dacorum | 1 | 1 | Slight |
| Mon 22 Jan 1990 | Dacorum | 1 | 1 | Slight |
| Thu 22 Feb 1990 | Dacorum | 1 | 1 | Serious |
| Wed 7 Mar 1990 | St. Albans | 2 | 2 | Slight |
| Thu 8 Mar 1990 | Dacorum | 2 | 1 | Slight |
| Mon 19 Mar 1990 | Dacorum | 1 | 1 | Slight |
| Tue 3 Apr 1990 | Dacorum | 2 | 1 | Slight |
| Sun 8 Apr 1990 | St. Albans | 2 | 1 | Serious |
| Fri 20 Apr 1990 | St. Albans | 2 | 1 | Slight |
| Sun 22 Apr 1990 | St. Albans | 1 | 2 | Slight |
| Tue 22 May 1990 | Dacorum | 2 | 1 | Slight |
| Sat 16 Jun 1990 | Dacorum | 1 | 1 | Slight |
| Thu 21 Jun 1990 | St. Albans | 2 | 1 | Slight |
| Thu 21 Jun 1990 | Dacorum | 1 | 1 | Serious |
| Sun 24 Jun 1990 | St. Albans | 2 | 1 | Slight |
| Fri 29 Jun 1990 | Dacorum | 2 | 1 | Slight |
| Tue 24 Jul 1990 | Dacorum | 2 | 1 | Slight |
| Mon 30 Jul 1990 | St. Albans | 2 | 1 | Slight |
| Sat 4 Aug 1990 | Dacorum | 2 | 2 | Slight |
| Thu 9 Aug 1990 | St. Albans | 1 | 1 | Serious |
| Mon 13 Aug 1990 | Dacorum | 1 | 1 | Slight |
| Wed 15 Aug 1990 | St. Albans | 2 | 1 | Slight |
| Wed 5 Sep 1990 | Dacorum | 2 | 1 | Slight |
| Sun 9 Sep 1990 | Dacorum | 2 | 1 | Slight |
| Sat 29 Sep 1990 | St. Albans | 1 | 1 | Fatal |
| Mon 29 Oct 1990 | St. Albans | 2 | 1 | Serious |
| Tue 6 Nov 1990 | Dacorum | 2 | 1 | Slight |
| Thu 22 Nov 1990 | St. Albans | 2 | 1 | Slight |
| Sun 9 Dec 1990 | Dacorum | 1 | 1 | Serious |
| Fri 21 Dec 1990 | St. Albans | 2 | 1 | Slight |
| Mon 24 Dec 1990 | Dacorum | 3 | 1 | Slight |