Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 6 Jan 1990 | Hillingdon | 2 | 1 | Slight |
| Tue 9 Jan 1990 | Hillingdon | 3 | 2 | Slight |
| Tue 16 Jan 1990 | Hillingdon | 2 | 1 | Slight |
| Sun 28 Jan 1990 | Hillingdon | 2 | 2 | Serious |
| Tue 6 Feb 1990 | Hillingdon | 1 | 1 | Serious |
| Tue 13 Feb 1990 | Hillingdon | 2 | 1 | Slight |
| Tue 13 Feb 1990 | Hillingdon | 2 | 2 | Slight |
| Fri 16 Feb 1990 | Hillingdon | 2 | 1 | Slight |
| Fri 16 Feb 1990 | Hillingdon | 2 | 1 | Slight |
| Fri 16 Feb 1990 | Hillingdon | 2 | 1 | Slight |
| Fri 2 Mar 1990 | Hillingdon | 1 | 2 | Serious |
| Wed 21 Mar 1990 | Hillingdon | 1 | 1 | Slight |
| Tue 27 Mar 1990 | Hillingdon | 2 | 1 | Slight |
| Wed 4 Apr 1990 | Hillingdon | 2 | 1 | Slight |
| Tue 17 Apr 1990 | Hillingdon | 2 | 4 | Slight |
| Sun 22 Apr 1990 | Hillingdon | 2 | 1 | Slight |
| Mon 23 Apr 1990 | Hillingdon | 2 | 1 | Slight |
| Thu 26 Apr 1990 | Hillingdon | 2 | 1 | Slight |
| Thu 17 May 1990 | Hillingdon | 1 | 2 | Slight |
| Sat 19 May 1990 | Hillingdon | 1 | 1 | Slight |
| Fri 29 Jun 1990 | Hillingdon | 2 | 1 | Serious |
| Fri 29 Jun 1990 | Hillingdon | 2 | 2 | Serious |
| Mon 9 Jul 1990 | Hillingdon | 2 | 1 | Slight |
| Wed 11 Jul 1990 | Hillingdon | 1 | 1 | Slight |
| Mon 6 Aug 1990 | Hillingdon | 1 | 1 | Slight |
| Mon 20 Aug 1990 | Hillingdon | 1 | 1 | Slight |
| Fri 31 Aug 1990 | Hillingdon | 2 | 1 | Slight |
| Thu 13 Sep 1990 | Hillingdon | 2 | 1 | Fatal |
| Sun 23 Sep 1990 | Hillingdon | 2 | 1 | Slight |
| Mon 15 Oct 1990 | Hillingdon | 1 | 1 | Slight |
| Wed 17 Oct 1990 | Hillingdon | 2 | 1 | Slight |
| Fri 2 Nov 1990 | Hillingdon | 3 | 1 | Slight |
| Tue 6 Nov 1990 | Hillingdon | 1 | 1 | Slight |
| Sun 11 Nov 1990 | Hillingdon | 2 | 1 | Slight |
| Fri 16 Nov 1990 | Hillingdon | 1 | 1 | Slight |
| Fri 23 Nov 1990 | Hillingdon | 1 | 1 | Slight |
| Sat 1 Dec 1990 | Hillingdon | 2 | 2 | Slight |
| Sat 1 Dec 1990 | Hillingdon | 1 | 1 | Slight |
| Mon 3 Dec 1990 | Hillingdon | 3 | 1 | Slight |
| Tue 4 Dec 1990 | Hillingdon | 2 | 3 | Slight |
| Tue 4 Dec 1990 | Hillingdon | 2 | 1 | Slight |
| Tue 4 Dec 1990 | Hillingdon | 1 | 2 | Slight |
| Fri 7 Dec 1990 | Hillingdon | 2 | 1 | Slight |
| Wed 12 Dec 1990 | Hillingdon | 2 | 1 | Slight |
| Thu 13 Dec 1990 | Hillingdon | 2 | 1 | Serious |
| Fri 14 Dec 1990 | Hillingdon | 1 | 1 | Fatal |
| Fri 21 Dec 1990 | Hillingdon | 1 | 1 | Slight |
| Thu 27 Dec 1990 | Hillingdon | 2 | 1 | Slight |
| Sat 29 Dec 1990 | Hillingdon | 1 | 1 | Slight |
| Mon 31 Dec 1990 | Hillingdon | 2 | 1 | Slight |