Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 8 Jan 1990 | Chiltern | 2 | 1 | Slight |
| Sat 27 Jan 1990 | Dacorum | 1 | 4 | Slight |
| Mon 19 Feb 1990 | Dacorum | 2 | 2 | Slight |
| Fri 2 Mar 1990 | Dacorum | 3 | 2 | Slight |
| Fri 16 Mar 1990 | Dacorum | 2 | 1 | Slight |
| Tue 20 Mar 1990 | Dacorum | 2 | 1 | Slight |
| Fri 23 Mar 1990 | Chiltern | 2 | 2 | Serious |
| Fri 23 Mar 1990 | Dacorum | 2 | 1 | Serious |
| Wed 25 Apr 1990 | Dacorum | 2 | 2 | Slight |
| Fri 27 Apr 1990 | Dacorum | 2 | 1 | Slight |
| Mon 30 Apr 1990 | Chiltern | 2 | 1 | Serious |
| Sat 19 May 1990 | Dacorum | 1 | 2 | Slight |
| Sat 26 May 1990 | Dacorum | 5 | 1 | Slight |
| Mon 28 May 1990 | Chiltern | 2 | 3 | Slight |
| Sun 3 Jun 1990 | Dacorum | 2 | 2 | Slight |
| Thu 14 Jun 1990 | Dacorum | 2 | 2 | Serious |
| Thu 5 Jul 1990 | Chiltern | 2 | 1 | Slight |
| Fri 20 Jul 1990 | Chiltern | 2 | 2 | Slight |
| Sat 11 Aug 1990 | Dacorum | 3 | 3 | Slight |
| Thu 30 Aug 1990 | Dacorum | 2 | 1 | Slight |
| Sun 9 Sep 1990 | Chiltern | 4 | 1 | Fatal |
| Tue 25 Sep 1990 | Dacorum | 2 | 1 | Slight |
| Sat 29 Sep 1990 | Dacorum | 2 | 1 | Slight |
| Tue 23 Oct 1990 | Dacorum | 2 | 1 | Slight |
| Thu 22 Nov 1990 | Dacorum | 2 | 2 | Slight |
| Fri 23 Nov 1990 | Chiltern | 2 | 1 | Slight |
| Fri 30 Nov 1990 | Chiltern | 2 | 2 | Slight |
| Fri 30 Nov 1990 | Dacorum | 3 | 1 | Slight |
| Tue 11 Dec 1990 | Chiltern | 1 | 1 | Slight |
| Sat 22 Dec 1990 | Dacorum | 2 | 1 | Slight |