Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 1 Jan 1991 | St. Helens | 1 | 3 | Slight |
| Thu 3 Jan 1991 | West Lancashire | 2 | 1 | Slight |
| Fri 4 Jan 1991 | West Lancashire | 1 | 2 | Slight |
| Sat 5 Jan 1991 | St. Helens | 3 | 5 | Serious |
| Tue 8 Jan 1991 | St. Helens | 1 | 3 | Slight |
| Tue 8 Jan 1991 | St. Helens | 2 | 1 | Serious |
| Tue 8 Jan 1991 | St. Helens | 1 | 1 | Slight |
| Thu 10 Jan 1991 | St. Helens | 2 | 2 | Slight |
| Wed 16 Jan 1991 | West Lancashire | 2 | 1 | Slight |
| Wed 16 Jan 1991 | West Lancashire | 2 | 1 | Slight |
| Thu 17 Jan 1991 | St. Helens | 3 | 5 | Slight |
| Fri 18 Jan 1991 | Sefton | 1 | 1 | Slight |
| Thu 24 Jan 1991 | West Lancashire | 2 | 3 | Slight |
| Thu 24 Jan 1991 | West Lancashire | 2 | 2 | Slight |
| Fri 25 Jan 1991 | Sefton | 1 | 1 | Slight |
| Fri 1 Feb 1991 | St. Helens | 3 | 1 | Slight |
| Wed 6 Feb 1991 | St. Helens | 2 | 1 | Slight |
| Wed 6 Feb 1991 | Sefton | 2 | 1 | Slight |
| Tue 12 Feb 1991 | St. Helens | 3 | 1 | Slight |
| Mon 18 Feb 1991 | Sefton | 1 | 1 | Slight |
| Tue 19 Feb 1991 | St. Helens | 2 | 1 | Slight |
| Wed 20 Feb 1991 | St. Helens | 3 | 3 | Slight |
| Fri 22 Feb 1991 | St. Helens | 2 | 1 | Slight |
| Fri 1 Mar 1991 | Sefton | 2 | 1 | Slight |
| Thu 7 Mar 1991 | St. Helens | 3 | 2 | Slight |
| Sat 9 Mar 1991 | St. Helens | 2 | 1 | Slight |
| Mon 11 Mar 1991 | Sefton | 2 | 1 | Slight |
| Sun 17 Mar 1991 | West Lancashire | 2 | 1 | Slight |
| Mon 18 Mar 1991 | St. Helens | 2 | 1 | Serious |
| Tue 19 Mar 1991 | West Lancashire | 1 | 1 | Slight |
| Fri 22 Mar 1991 | St. Helens | 2 | 1 | Slight |
| Fri 22 Mar 1991 | St. Helens | 3 | 3 | Slight |
| Sat 23 Mar 1991 | West Lancashire | 2 | 1 | Slight |
| Sat 23 Mar 1991 | Sefton | 2 | 1 | Slight |
| Mon 25 Mar 1991 | St. Helens | 2 | 2 | Slight |
| Tue 26 Mar 1991 | St. Helens | 1 | 1 | Slight |
| Tue 2 Apr 1991 | St. Helens | 2 | 1 | Slight |
| Tue 2 Apr 1991 | West Lancashire | 1 | 1 | Slight |
| Thu 4 Apr 1991 | St. Helens | 3 | 3 | Slight |
| Thu 4 Apr 1991 | West Lancashire | 1 | 1 | Slight |
| Sat 6 Apr 1991 | West Lancashire | 2 | 1 | Slight |
| Sat 6 Apr 1991 | West Lancashire | 2 | 1 | Slight |
| Mon 8 Apr 1991 | St. Helens | 2 | 1 | Slight |
| Thu 11 Apr 1991 | St. Helens | 2 | 1 | Slight |
| Thu 11 Apr 1991 | St. Helens | 2 | 1 | Slight |
| Fri 12 Apr 1991 | West Lancashire | 2 | 1 | Slight |
| Fri 12 Apr 1991 | St. Helens | 1 | 1 | Serious |
| Fri 19 Apr 1991 | West Lancashire | 2 | 1 | Slight |
| Mon 22 Apr 1991 | St. Helens | 2 | 1 | Slight |
| Thu 25 Apr 1991 | West Lancashire | 4 | 4 | Slight |
| Fri 26 Apr 1991 | St. Helens | 2 | 1 | Slight |
| Mon 29 Apr 1991 | St. Helens | 2 | 1 | Slight |
| Mon 29 Apr 1991 | St. Helens | 1 | 1 | Slight |
| Tue 30 Apr 1991 | Sefton | 2 | 1 | Slight |
| Wed 1 May 1991 | St. Helens | 1 | 3 | Slight |
| Wed 8 May 1991 | West Lancashire | 2 | 1 | Slight |
| Sat 11 May 1991 | West Lancashire | 2 | 2 | Slight |
| Tue 14 May 1991 | St. Helens | 2 | 1 | Slight |
| Sat 18 May 1991 | St. Helens | 1 | 1 | Slight |
| Sat 18 May 1991 | St. Helens | 2 | 2 | Slight |
| Mon 20 May 1991 | Sefton | 2 | 1 | Slight |
| Wed 22 May 1991 | Sefton | 3 | 1 | Slight |
| Fri 24 May 1991 | St. Helens | 2 | 1 | Slight |
| Sat 25 May 1991 | Sefton | 2 | 1 | Slight |
| Mon 27 May 1991 | Sefton | 2 | 1 | Slight |
| Tue 28 May 1991 | St. Helens | 1 | 1 | Slight |
| Tue 28 May 1991 | St. Helens | 2 | 1 | Slight |
| Tue 28 May 1991 | Sefton | 2 | 1 | Slight |
| Sat 1 Jun 1991 | St. Helens | 2 | 3 | Serious |
| Sat 1 Jun 1991 | West Lancashire | 3 | 4 | Slight |
| Sun 2 Jun 1991 | St. Helens | 3 | 2 | Slight |
| Tue 4 Jun 1991 | West Lancashire | 2 | 1 | Slight |
| Mon 10 Jun 1991 | Sefton | 2 | 1 | Slight |
| Sat 15 Jun 1991 | West Lancashire | 2 | 3 | Serious |
| Sat 15 Jun 1991 | St. Helens | 2 | 2 | Slight |
| Wed 19 Jun 1991 | Sefton | 2 | 1 | Slight |
| Fri 21 Jun 1991 | St. Helens | 1 | 1 | Slight |
| Fri 21 Jun 1991 | St. Helens | 1 | 2 | Slight |
| Sun 30 Jun 1991 | St. Helens | 2 | 2 | Slight |
| Mon 1 Jul 1991 | St. Helens | 2 | 1 | Slight |
| Tue 2 Jul 1991 | St. Helens | 1 | 1 | Slight |
| Tue 2 Jul 1991 | St. Helens | 2 | 2 | Slight |
| Tue 2 Jul 1991 | St. Helens | 1 | 1 | Slight |
| Fri 5 Jul 1991 | St. Helens | 1 | 5 | Serious |
| Fri 5 Jul 1991 | St. Helens | 2 | 10 | Serious |
| Sat 6 Jul 1991 | St. Helens | 1 | 1 | Slight |
| Mon 8 Jul 1991 | St. Helens | 2 | 1 | Slight |
| Tue 9 Jul 1991 | West Lancashire | 2 | 1 | Slight |
| Thu 11 Jul 1991 | Sefton | 2 | 1 | Slight |
| Sat 13 Jul 1991 | St. Helens | 2 | 1 | Slight |
| Sun 14 Jul 1991 | West Lancashire | 1 | 1 | Serious |
| Mon 15 Jul 1991 | Sefton | 2 | 1 | Slight |
| Wed 17 Jul 1991 | West Lancashire | 3 | 3 | Slight |
| Fri 19 Jul 1991 | St. Helens | 2 | 1 | Slight |
| Tue 23 Jul 1991 | St. Helens | 1 | 1 | Serious |
| Fri 26 Jul 1991 | West Lancashire | 2 | 1 | Slight |
| Sun 28 Jul 1991 | St. Helens | 2 | 2 | Slight |
| Tue 30 Jul 1991 | Sefton | 1 | 2 | Slight |
| Tue 30 Jul 1991 | St. Helens | 2 | 1 | Slight |
| Sun 4 Aug 1991 | Sefton | 2 | 2 | Slight |
| Tue 6 Aug 1991 | St. Helens | 2 | 1 | Slight |
| Thu 8 Aug 1991 | Sefton | 2 | 1 | Slight |
| Fri 9 Aug 1991 | St. Helens | 1 | 1 | Slight |
| Fri 9 Aug 1991 | St. Helens | 2 | 1 | Slight |
| Sat 10 Aug 1991 | St. Helens | 2 | 4 | Serious |
| Sat 10 Aug 1991 | St. Helens | 1 | 1 | Slight |
| Sun 11 Aug 1991 | West Lancashire | 4 | 1 | Slight |
| Mon 12 Aug 1991 | Sefton | 1 | 1 | Slight |
| Fri 16 Aug 1991 | Sefton | 2 | 1 | Slight |
| Fri 16 Aug 1991 | West Lancashire | 2 | 1 | Slight |
| Sun 18 Aug 1991 | West Lancashire | 1 | 1 | Slight |
| Sun 18 Aug 1991 | Sefton | 2 | 1 | Slight |
| Wed 21 Aug 1991 | St. Helens | 2 | 2 | Slight |
| Fri 23 Aug 1991 | St. Helens | 3 | 1 | Slight |
| Fri 23 Aug 1991 | Sefton | 2 | 1 | Slight |
| Thu 29 Aug 1991 | St. Helens | 2 | 2 | Serious |
| Fri 30 Aug 1991 | West Lancashire | 3 | 1 | Slight |
| Wed 4 Sep 1991 | St. Helens | 2 | 2 | Serious |
| Fri 6 Sep 1991 | St. Helens | 2 | 1 | Slight |
| Fri 13 Sep 1991 | Sefton | 4 | 1 | Slight |
| Sat 14 Sep 1991 | West Lancashire | 2 | 1 | Slight |
| Mon 16 Sep 1991 | West Lancashire | 3 | 2 | Slight |
| Tue 17 Sep 1991 | St. Helens | 3 | 5 | Serious |
| Tue 17 Sep 1991 | St. Helens | 7 | 2 | Slight |
| Wed 18 Sep 1991 | West Lancashire | 2 | 1 | Slight |
| Wed 18 Sep 1991 | St. Helens | 1 | 1 | Slight |
| Sun 22 Sep 1991 | St. Helens | 2 | 1 | Serious |
| Mon 23 Sep 1991 | St. Helens | 2 | 1 | Slight |
| Fri 27 Sep 1991 | Sefton | 2 | 2 | Slight |
| Mon 30 Sep 1991 | West Lancashire | 1 | 1 | Slight |
| Sun 6 Oct 1991 | St. Helens | 2 | 1 | Slight |
| Tue 8 Oct 1991 | St. Helens | 2 | 1 | Slight |
| Thu 10 Oct 1991 | St. Helens | 2 | 1 | Slight |
| Fri 11 Oct 1991 | St. Helens | 1 | 3 | Slight |
| Fri 11 Oct 1991 | Sefton | 1 | 1 | Serious |
| Fri 11 Oct 1991 | St. Helens | 1 | 1 | Slight |
| Mon 14 Oct 1991 | St. Helens | 2 | 1 | Slight |
| Wed 16 Oct 1991 | West Lancashire | 1 | 1 | Slight |
| Thu 17 Oct 1991 | St. Helens | 1 | 1 | Slight |
| Sun 20 Oct 1991 | St. Helens | 2 | 1 | Slight |
| Mon 28 Oct 1991 | St. Helens | 1 | 1 | Slight |
| Tue 29 Oct 1991 | St. Helens | 1 | 3 | Serious |
| Wed 30 Oct 1991 | West Lancashire | 2 | 2 | Slight |
| Thu 31 Oct 1991 | St. Helens | 2 | 3 | Slight |
| Sat 2 Nov 1991 | Sefton | 2 | 2 | Slight |
| Sat 2 Nov 1991 | Sefton | 3 | 4 | Slight |
| Wed 6 Nov 1991 | Sefton | 2 | 2 | Slight |
| Fri 8 Nov 1991 | St. Helens | 1 | 1 | Slight |
| Sun 10 Nov 1991 | St. Helens | 1 | 1 | Serious |
| Tue 12 Nov 1991 | St. Helens | 2 | 2 | Slight |
| Thu 14 Nov 1991 | St. Helens | 2 | 1 | Slight |
| Fri 15 Nov 1991 | St. Helens | 2 | 1 | Slight |
| Fri 15 Nov 1991 | St. Helens | 2 | 1 | Slight |
| Fri 15 Nov 1991 | St. Helens | 3 | 1 | Slight |
| Mon 18 Nov 1991 | Bolton | 2 | 1 | Slight |
| Mon 18 Nov 1991 | St. Helens | 2 | 2 | Slight |
| Mon 18 Nov 1991 | St. Helens | 2 | 1 | Slight |
| Tue 19 Nov 1991 | Sefton | 1 | 1 | Slight |
| Wed 20 Nov 1991 | West Lancashire | 2 | 3 | Fatal |
| Wed 20 Nov 1991 | St. Helens | 1 | 2 | Slight |
| Thu 21 Nov 1991 | St. Helens | 2 | 1 | Slight |
| Tue 26 Nov 1991 | St. Helens | 1 | 1 | Slight |
| Wed 27 Nov 1991 | Sefton | 2 | 1 | Slight |
| Thu 28 Nov 1991 | Sefton | 2 | 1 | Slight |
| Mon 2 Dec 1991 | St. Helens | 2 | 1 | Serious |
| Fri 6 Dec 1991 | St. Helens | 3 | 3 | Slight |
| Sun 8 Dec 1991 | St. Helens | 1 | 1 | Slight |
| Sun 8 Dec 1991 | St. Helens | 2 | 1 | Slight |
| Mon 9 Dec 1991 | St. Helens | 2 | 2 | Slight |
| Fri 13 Dec 1991 | West Lancashire | 3 | 3 | Slight |
| Sat 14 Dec 1991 | St. Helens | 2 | 1 | Slight |
| Sat 14 Dec 1991 | Sefton | 2 | 1 | Slight |
| Sat 14 Dec 1991 | St. Helens | 2 | 3 | Slight |
| Wed 18 Dec 1991 | St. Helens | 1 | 1 | Slight |
| Wed 18 Dec 1991 | Sefton | 2 | 1 | Slight |
| Thu 19 Dec 1991 | West Lancashire | 2 | 1 | Slight |
| Sat 21 Dec 1991 | West Lancashire | 2 | 1 | Slight |
| Sat 21 Dec 1991 | St. Helens | 2 | 1 | Slight |
| Mon 23 Dec 1991 | St. Helens | 2 | 1 | Slight |