Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 4 Jan 1991 | Harrow | 1 | 1 | Serious |
| Fri 4 Jan 1991 | Harrow | 2 | 4 | Serious |
| Tue 8 Jan 1991 | Harrow | 2 | 1 | Slight |
| Tue 8 Jan 1991 | Harrow | 2 | 1 | Serious |
| Thu 10 Jan 1991 | Brent | 2 | 1 | Slight |
| Sun 27 Jan 1991 | Harrow | 2 | 1 | Slight |
| Sat 2 Feb 1991 | Harrow | 1 | 1 | Slight |
| Mon 4 Feb 1991 | Ealing | 2 | 2 | Serious |
| Mon 11 Feb 1991 | Harrow | 1 | 1 | Slight |
| Tue 12 Feb 1991 | Harrow | 1 | 1 | Slight |
| Wed 27 Feb 1991 | Brent | 2 | 1 | Slight |
| Thu 28 Feb 1991 | Harrow | 1 | 1 | Slight |
| Sat 2 Mar 1991 | Ealing | 2 | 1 | Slight |
| Fri 8 Mar 1991 | Ealing | 2 | 1 | Slight |
| Sat 9 Mar 1991 | Ealing | 2 | 1 | Slight |
| Tue 12 Mar 1991 | Harrow | 1 | 1 | Serious |
| Fri 15 Mar 1991 | Harrow | 2 | 1 | Serious |
| Wed 20 Mar 1991 | Harrow | 1 | 1 | Serious |
| Sun 24 Mar 1991 | Harrow | 3 | 1 | Slight |
| Fri 29 Mar 1991 | Harrow | 1 | 1 | Serious |
| Thu 11 Apr 1991 | Harrow | 2 | 1 | Slight |
| Sun 14 Apr 1991 | Harrow | 2 | 1 | Serious |
| Thu 18 Apr 1991 | Harrow | 2 | 2 | Slight |
| Sat 27 Apr 1991 | Harrow | 1 | 1 | Slight |
| Thu 2 May 1991 | Harrow | 2 | 1 | Slight |
| Sun 5 May 1991 | Ealing | 2 | 2 | Slight |
| Sun 12 May 1991 | Harrow | 2 | 1 | Serious |
| Mon 13 May 1991 | Harrow | 2 | 1 | Slight |
| Wed 15 May 1991 | Harrow | 1 | 1 | Slight |
| Tue 28 May 1991 | Harrow | 1 | 1 | Slight |
| Thu 6 Jun 1991 | Ealing | 2 | 1 | Slight |
| Mon 10 Jun 1991 | Ealing | 2 | 1 | Slight |
| Tue 11 Jun 1991 | Ealing | 1 | 1 | Slight |
| Sun 16 Jun 1991 | Ealing | 1 | 1 | Serious |
| Sun 30 Jun 1991 | Harrow | 3 | 2 | Slight |
| Mon 1 Jul 1991 | Harrow | 3 | 1 | Slight |
| Sat 6 Jul 1991 | Ealing | 2 | 1 | Slight |
| Mon 8 Jul 1991 | Harrow | 2 | 1 | Serious |
| Wed 10 Jul 1991 | Harrow | 2 | 1 | Slight |
| Fri 12 Jul 1991 | Ealing | 2 | 1 | Slight |
| Thu 25 Jul 1991 | Ealing | 1 | 1 | Slight |
| Thu 1 Aug 1991 | Harrow | 2 | 1 | Slight |
| Sun 4 Aug 1991 | Harrow | 2 | 1 | Serious |
| Thu 8 Aug 1991 | Ealing | 2 | 1 | Slight |
| Tue 13 Aug 1991 | Ealing | 2 | 1 | Slight |
| Thu 22 Aug 1991 | Harrow | 2 | 1 | Slight |
| Thu 22 Aug 1991 | Harrow | 2 | 1 | Slight |
| Fri 30 Aug 1991 | Harrow | 2 | 1 | Slight |
| Mon 2 Sep 1991 | Ealing | 2 | 1 | Slight |
| Fri 6 Sep 1991 | Harrow | 2 | 1 | Slight |
| Fri 6 Sep 1991 | Harrow | 2 | 1 | Serious |
| Fri 13 Sep 1991 | Harrow | 2 | 1 | Slight |
| Sat 14 Sep 1991 | Harrow | 2 | 1 | Serious |
| Mon 16 Sep 1991 | Ealing | 3 | 1 | Slight |
| Fri 20 Sep 1991 | Ealing | 2 | 1 | Slight |
| Sun 22 Sep 1991 | Ealing | 2 | 2 | Slight |
| Mon 30 Sep 1991 | Harrow | 2 | 1 | Slight |
| Mon 30 Sep 1991 | Harrow | 2 | 1 | Slight |
| Tue 8 Oct 1991 | Ealing | 2 | 1 | Slight |
| Wed 16 Oct 1991 | Harrow | 2 | 1 | Serious |
| Wed 16 Oct 1991 | Ealing | 2 | 1 | Serious |
| Fri 18 Oct 1991 | Harrow | 1 | 1 | Slight |
| Sat 19 Oct 1991 | Harrow | 2 | 1 | Slight |
| Mon 21 Oct 1991 | Harrow | 2 | 1 | Slight |
| Thu 24 Oct 1991 | Harrow | 2 | 1 | Slight |
| Fri 1 Nov 1991 | Harrow | 2 | 1 | Slight |
| Sun 10 Nov 1991 | Ealing | 2 | 2 | Slight |
| Thu 14 Nov 1991 | Ealing | 2 | 2 | Slight |
| Mon 18 Nov 1991 | Harrow | 3 | 2 | Slight |
| Mon 18 Nov 1991 | Harrow | 2 | 1 | Slight |
| Mon 25 Nov 1991 | Ealing | 1 | 1 | Slight |
| Thu 28 Nov 1991 | Harrow | 2 | 1 | Slight |
| Mon 2 Dec 1991 | Harrow | 2 | 2 | Slight |
| Thu 5 Dec 1991 | Harrow | 2 | 2 | Slight |
| Wed 11 Dec 1991 | Harrow | 2 | 2 | Slight |
| Thu 12 Dec 1991 | Ealing | 2 | 1 | Slight |
| Thu 12 Dec 1991 | Harrow | 2 | 1 | Serious |
| Sat 21 Dec 1991 | Ealing | 2 | 1 | Slight |