Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 2 Jan 1991 | Hillingdon | 2 | 1 | Serious |
| Wed 9 Jan 1991 | Hillingdon | 1 | 1 | Slight |
| Thu 10 Jan 1991 | Hillingdon | 2 | 1 | Serious |
| Thu 10 Jan 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 11 Jan 1991 | Hillingdon | 1 | 1 | Slight |
| Fri 11 Jan 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 12 Jan 1991 | Hillingdon | 2 | 1 | Slight |
| Sun 13 Jan 1991 | Hillingdon | 2 | 1 | Slight |
| Mon 14 Jan 1991 | Hillingdon | 2 | 1 | Serious |
| Thu 17 Jan 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 19 Jan 1991 | Hillingdon | 2 | 1 | Slight |
| Sun 3 Feb 1991 | Hillingdon | 2 | 1 | Slight |
| Mon 4 Feb 1991 | Hillingdon | 1 | 1 | Serious |
| Thu 7 Feb 1991 | Hillingdon | 1 | 1 | Slight |
| Tue 12 Feb 1991 | Hillingdon | 2 | 1 | Slight |
| Thu 21 Feb 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 22 Feb 1991 | Hillingdon | 2 | 2 | Slight |
| Sat 23 Feb 1991 | Hillingdon | 2 | 1 | Slight |
| Mon 25 Feb 1991 | Hillingdon | 2 | 1 | Slight |
| Tue 26 Feb 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 1 Mar 1991 | Hillingdon | 2 | 1 | Slight |
| Tue 5 Mar 1991 | Hillingdon | 2 | 1 | Slight |
| Tue 5 Mar 1991 | Hillingdon | 2 | 1 | Slight |
| Thu 7 Mar 1991 | Hillingdon | 2 | 1 | Slight |
| Thu 7 Mar 1991 | Hillingdon | 2 | 1 | Slight |
| Mon 18 Mar 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 23 Mar 1991 | Hillingdon | 1 | 1 | Slight |
| Thu 4 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 13 Apr 1991 | Hillingdon | 2 | 2 | Slight |
| Sat 13 Apr 1991 | Hillingdon | 2 | 2 | Slight |
| Sun 14 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Sun 14 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Tue 16 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 19 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 20 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Sun 21 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 27 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Sun 28 Apr 1991 | Hillingdon | 2 | 1 | Slight |
| Thu 2 May 1991 | Hillingdon | 1 | 1 | Slight |
| Thu 2 May 1991 | Hillingdon | 1 | 1 | Serious |
| Wed 8 May 1991 | Hillingdon | 1 | 1 | Slight |
| Fri 17 May 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 18 May 1991 | Hillingdon | 2 | 1 | Slight |
| Tue 4 Jun 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 8 Jun 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 14 Jun 1991 | Hillingdon | 2 | 1 | Slight |
| Wed 3 Jul 1991 | Hillingdon | 2 | 2 | Serious |
| Sat 6 Jul 1991 | Hillingdon | 2 | 3 | Slight |
| Sun 7 Jul 1991 | Hillingdon | 1 | 1 | Serious |
| Sat 13 Jul 1991 | Hillingdon | 2 | 1 | Slight |
| Sun 14 Jul 1991 | Hillingdon | 1 | 1 | Slight |
| Tue 23 Jul 1991 | Hillingdon | 1 | 1 | Slight |
| Sat 27 Jul 1991 | Hillingdon | 2 | 1 | Slight |
| Wed 31 Jul 1991 | Hillingdon | 2 | 1 | Slight |
| Thu 1 Aug 1991 | Hillingdon | 2 | 2 | Slight |
| Sun 18 Aug 1991 | Hillingdon | 2 | 2 | Slight |
| Wed 21 Aug 1991 | Hillingdon | 1 | 1 | Slight |
| Thu 22 Aug 1991 | Hillingdon | 2 | 2 | Slight |
| Sun 25 Aug 1991 | Hillingdon | 2 | 1 | Slight |
| Tue 27 Aug 1991 | Hillingdon | 3 | 2 | Slight |
| Mon 2 Sep 1991 | Hillingdon | 2 | 1 | Slight |
| Mon 9 Sep 1991 | Hillingdon | 2 | 1 | Slight |
| Mon 9 Sep 1991 | Hillingdon | 2 | 1 | Slight |
| Thu 19 Sep 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 27 Sep 1991 | Hillingdon | 1 | 1 | Slight |
| Sat 28 Sep 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 28 Sep 1991 | Hillingdon | 3 | 1 | Slight |
| Wed 2 Oct 1991 | Hillingdon | 3 | 4 | Serious |
| Fri 4 Oct 1991 | Hillingdon | 2 | 1 | Slight |
| Mon 7 Oct 1991 | Hillingdon | 1 | 1 | Slight |
| Thu 17 Oct 1991 | Hillingdon | 2 | 1 | Slight |
| Wed 23 Oct 1991 | Hillingdon | 4 | 2 | Slight |
| Sat 26 Oct 1991 | Hillingdon | 2 | 2 | Slight |
| Tue 29 Oct 1991 | Hillingdon | 2 | 1 | Serious |
| Wed 30 Oct 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 1 Nov 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 2 Nov 1991 | Hillingdon | 2 | 1 | Slight |
| Tue 5 Nov 1991 | Hillingdon | 2 | 1 | Slight |
| Wed 6 Nov 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 15 Nov 1991 | Hillingdon | 1 | 1 | Slight |
| Fri 15 Nov 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 16 Nov 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 16 Nov 1991 | Hillingdon | 2 | 2 | Slight |
| Mon 18 Nov 1991 | Hillingdon | 1 | 1 | Slight |
| Mon 18 Nov 1991 | Hillingdon | 3 | 2 | Slight |
| Fri 22 Nov 1991 | Hillingdon | 2 | 1 | Slight |
| Sat 23 Nov 1991 | Hillingdon | 2 | 1 | Slight |
| Wed 11 Dec 1991 | Hillingdon | 2 | 1 | Serious |
| Fri 13 Dec 1991 | Hillingdon | 1 | 1 | Slight |
| Fri 13 Dec 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 13 Dec 1991 | Hillingdon | 2 | 1 | Slight |
| Thu 19 Dec 1991 | Hillingdon | 2 | 1 | Slight |
| Fri 20 Dec 1991 | Hillingdon | 1 | 1 | Fatal |
| Sun 29 Dec 1991 | Hillingdon | 1 | 1 | Slight |
| Sun 29 Dec 1991 | Hillingdon | 2 | 1 | Slight |
| Sun 29 Dec 1991 | Hillingdon | 1 | 1 | Slight |
| Tue 31 Dec 1991 | Hillingdon | 2 | 1 | Slight |