Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 2 Jan 1990 | Ealing | 2 | 1 | Slight |
| Tue 2 Jan 1990 | Harrow | 2 | 1 | Slight |
| Wed 3 Jan 1990 | Harrow | 1 | 1 | Serious |
| Tue 16 Jan 1990 | Harrow | 1 | 1 | Slight |
| Sat 20 Jan 1990 | Ealing | 2 | 1 | Slight |
| Sat 3 Feb 1990 | Ealing | 1 | 1 | Slight |
| Sat 3 Feb 1990 | Harrow | 1 | 1 | Serious |
| Mon 5 Feb 1990 | Harrow | 2 | 2 | Slight |
| Fri 9 Feb 1990 | Ealing | 1 | 1 | Slight |
| Fri 9 Feb 1990 | Ealing | 1 | 1 | Slight |
| Mon 12 Feb 1990 | Harrow | 2 | 1 | Serious |
| Wed 28 Feb 1990 | Harrow | 1 | 1 | Slight |
| Wed 28 Feb 1990 | Ealing | 3 | 1 | Slight |
| Sat 10 Mar 1990 | Harrow | 3 | 1 | Slight |
| Tue 13 Mar 1990 | Harrow | 2 | 1 | Serious |
| Thu 15 Mar 1990 | Harrow | 2 | 1 | Slight |
| Mon 26 Mar 1990 | Harrow | 2 | 1 | Serious |
| Wed 4 Apr 1990 | Harrow | 2 | 1 | Slight |
| Sat 7 Apr 1990 | Harrow | 2 | 1 | Slight |
| Tue 10 Apr 1990 | Harrow | 2 | 1 | Slight |
| Thu 12 Apr 1990 | Harrow | 2 | 1 | Slight |
| Mon 16 Apr 1990 | Ealing | 1 | 1 | Serious |
| Tue 24 Apr 1990 | Harrow | 2 | 1 | Slight |
| Wed 25 Apr 1990 | Harrow | 2 | 1 | Slight |
| Fri 4 May 1990 | Harrow | 2 | 2 | Serious |
| Fri 4 May 1990 | Ealing | 2 | 3 | Slight |
| Sun 6 May 1990 | Ealing | 2 | 4 | Slight |
| Sun 6 May 1990 | Ealing | 1 | 2 | Serious |
| Wed 16 May 1990 | Harrow | 2 | 1 | Serious |
| Sat 26 May 1990 | Harrow | 1 | 1 | Slight |
| Tue 5 Jun 1990 | Ealing | 2 | 1 | Serious |
| Mon 18 Jun 1990 | Harrow | 3 | 1 | Slight |
| Tue 19 Jun 1990 | Harrow | 2 | 1 | Slight |
| Sun 1 Jul 1990 | Ealing | 2 | 3 | Slight |
| Fri 6 Jul 1990 | Ealing | 2 | 1 | Slight |
| Fri 6 Jul 1990 | Harrow | 2 | 1 | Slight |
| Fri 6 Jul 1990 | Harrow | 1 | 1 | Slight |
| Sat 7 Jul 1990 | Harrow | 1 | 1 | Slight |
| Sun 8 Jul 1990 | Ealing | 2 | 4 | Slight |
| Sun 8 Jul 1990 | Ealing | 2 | 4 | Slight |
| Thu 12 Jul 1990 | Harrow | 2 | 1 | Slight |
| Sun 15 Jul 1990 | Harrow | 2 | 1 | Slight |
| Tue 31 Jul 1990 | Harrow | 2 | 1 | Slight |
| Mon 20 Aug 1990 | Harrow | 1 | 1 | Slight |
| Fri 24 Aug 1990 | Harrow | 2 | 1 | Slight |
| Wed 29 Aug 1990 | Ealing | 2 | 1 | Slight |
| Sat 1 Sep 1990 | Harrow | 2 | 1 | Slight |
| Sat 1 Sep 1990 | Harrow | 2 | 1 | Slight |
| Thu 6 Sep 1990 | Harrow | 3 | 1 | Serious |
| Sat 15 Sep 1990 | Ealing | 2 | 1 | Slight |
| Wed 19 Sep 1990 | Ealing | 2 | 1 | Slight |
| Sun 23 Sep 1990 | Harrow | 2 | 1 | Slight |
| Mon 24 Sep 1990 | Harrow | 2 | 1 | Serious |
| Thu 27 Sep 1990 | Ealing | 2 | 1 | Slight |
| Thu 27 Sep 1990 | Harrow | 2 | 1 | Slight |
| Wed 3 Oct 1990 | Ealing | 2 | 1 | Slight |
| Fri 12 Oct 1990 | Harrow | 1 | 1 | Slight |
| Fri 12 Oct 1990 | Ealing | 1 | 1 | Slight |
| Fri 12 Oct 1990 | Harrow | 2 | 1 | Slight |
| Thu 18 Oct 1990 | Harrow | 2 | 1 | Slight |
| Fri 26 Oct 1990 | Ealing | 3 | 1 | Slight |
| Mon 29 Oct 1990 | Harrow | 2 | 2 | Slight |
| Thu 1 Nov 1990 | Harrow | 2 | 1 | Slight |
| Mon 5 Nov 1990 | Harrow | 2 | 1 | Slight |
| Sun 11 Nov 1990 | Ealing | 2 | 1 | Serious |
| Tue 13 Nov 1990 | Harrow | 2 | 1 | Slight |
| Sat 17 Nov 1990 | Harrow | 2 | 1 | Slight |
| Sun 18 Nov 1990 | Ealing | 2 | 1 | Slight |
| Fri 23 Nov 1990 | Ealing | 2 | 1 | Slight |
| Tue 27 Nov 1990 | Harrow | 1 | 1 | Slight |
| Wed 28 Nov 1990 | Ealing | 2 | 1 | Slight |
| Sun 2 Dec 1990 | Harrow | 2 | 2 | Serious |
| Sun 2 Dec 1990 | Harrow | 2 | 2 | Serious |
| Wed 5 Dec 1990 | Harrow | 2 | 1 | Slight |
| Wed 5 Dec 1990 | Harrow | 2 | 2 | Slight |
| Wed 12 Dec 1990 | Harrow | 2 | 1 | Slight |
| Fri 14 Dec 1990 | Brent | 1 | 1 | Slight |
| Fri 21 Dec 1990 | Harrow | 3 | 1 | Slight |
| Fri 28 Dec 1990 | Harrow | 1 | 1 | Slight |