Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 1 Jan 1990 | Leeds | 3 | 3 | Slight |
| Tue 2 Jan 1990 | Leeds | 2 | 4 | Serious |
| Wed 3 Jan 1990 | Leeds | 2 | 1 | Slight |
| Fri 5 Jan 1990 | Craven | 3 | 3 | Serious |
| Fri 5 Jan 1990 | Leeds | 2 | 1 | Slight |
| Sun 7 Jan 1990 | Leeds | 3 | 1 | Slight |
| Thu 11 Jan 1990 | South Lakeland | 1 | 1 | Slight |
| Thu 11 Jan 1990 | Leeds | 2 | 1 | Slight |
| Fri 12 Jan 1990 | Craven | 2 | 1 | Slight |
| Sat 13 Jan 1990 | Leeds | 2 | 2 | Serious |
| Sat 13 Jan 1990 | Leeds | 2 | 1 | Slight |
| Wed 17 Jan 1990 | Leeds | 1 | 1 | Slight |
| Fri 19 Jan 1990 | Leeds | 2 | 2 | Slight |
| Fri 19 Jan 1990 | Craven | 2 | 2 | Serious |
| Fri 19 Jan 1990 | Craven | 2 | 1 | Slight |
| Sat 20 Jan 1990 | Bradford | 2 | 1 | Slight |
| Sun 21 Jan 1990 | Craven | 2 | 2 | Slight |
| Mon 22 Jan 1990 | South Lakeland | 2 | 2 | Slight |
| Tue 23 Jan 1990 | Leeds | 1 | 2 | Serious |
| Tue 23 Jan 1990 | Leeds | 2 | 1 | Slight |
| Thu 25 Jan 1990 | South Lakeland | 2 | 2 | Slight |
| Fri 26 Jan 1990 | Bradford | 1 | 2 | Slight |
| Mon 29 Jan 1990 | Leeds | 4 | 1 | Slight |
| Wed 31 Jan 1990 | Leeds | 2 | 2 | Slight |
| Thu 1 Feb 1990 | Bradford | 3 | 1 | Serious |
| Tue 6 Feb 1990 | Leeds | 2 | 1 | Slight |
| Fri 9 Feb 1990 | South Lakeland | 3 | 1 | Slight |
| Fri 9 Feb 1990 | Leeds | 5 | 1 | Slight |
| Fri 9 Feb 1990 | Leeds | 2 | 2 | Slight |
| Sat 10 Feb 1990 | Craven | 2 | 2 | Slight |
| Sat 10 Feb 1990 | South Lakeland | 1 | 4 | Slight |
| Sat 10 Feb 1990 | Leeds | 1 | 1 | Slight |
| Sun 11 Feb 1990 | Craven | 3 | 2 | Slight |
| Mon 12 Feb 1990 | Craven | 1 | 1 | Slight |
| Mon 12 Feb 1990 | Craven | 1 | 1 | Serious |
| Tue 13 Feb 1990 | Bradford | 3 | 1 | Fatal |
| Fri 16 Feb 1990 | Craven | 2 | 1 | Slight |
| Fri 16 Feb 1990 | Leeds | 4 | 1 | Slight |
| Sat 17 Feb 1990 | Craven | 2 | 1 | Slight |
| Mon 19 Feb 1990 | South Lakeland | 3 | 1 | Slight |
| Thu 22 Feb 1990 | Bradford | 4 | 2 | Slight |
| Thu 22 Feb 1990 | Leeds | 1 | 1 | Serious |
| Fri 23 Feb 1990 | Bradford | 2 | 1 | Serious |
| Fri 23 Feb 1990 | South Lakeland | 4 | 3 | Slight |
| Fri 2 Mar 1990 | Leeds | 2 | 1 | Slight |
| Fri 2 Mar 1990 | Craven | 3 | 3 | Slight |
| Sat 3 Mar 1990 | Leeds | 1 | 2 | Serious |
| Thu 8 Mar 1990 | Leeds | 2 | 3 | Slight |
| Sat 10 Mar 1990 | South Lakeland | 2 | 2 | Serious |
| Sun 11 Mar 1990 | Craven | 1 | 1 | Slight |
| Sun 11 Mar 1990 | Craven | 1 | 1 | Slight |
| Thu 15 Mar 1990 | Leeds | 2 | 2 | Slight |
| Fri 16 Mar 1990 | Leeds | 1 | 1 | Serious |
| Sat 17 Mar 1990 | South Lakeland | 1 | 1 | Slight |
| Sat 17 Mar 1990 | South Lakeland | 2 | 1 | Serious |
| Sun 18 Mar 1990 | Bradford | 3 | 1 | Slight |
| Sun 18 Mar 1990 | Craven | 3 | 2 | Serious |
| Wed 21 Mar 1990 | Leeds | 1 | 1 | Slight |
| Wed 21 Mar 1990 | Leeds | 2 | 1 | Slight |
| Thu 22 Mar 1990 | Craven | 3 | 1 | Slight |
| Sun 25 Mar 1990 | Craven | 2 | 1 | Serious |
| Sun 25 Mar 1990 | Lancaster | 2 | 2 | Slight |
| Wed 28 Mar 1990 | Craven | 2 | 2 | Slight |
| Thu 29 Mar 1990 | Bradford | 1 | 1 | Slight |
| Fri 30 Mar 1990 | Craven | 2 | 1 | Slight |
| Fri 30 Mar 1990 | South Lakeland | 2 | 2 | Serious |
| Sun 1 Apr 1990 | Craven | 1 | 2 | Slight |
| Sun 1 Apr 1990 | Craven | 2 | 1 | Slight |
| Wed 4 Apr 1990 | Leeds | 1 | 1 | Fatal |
| Sun 8 Apr 1990 | Craven | 1 | 1 | Slight |
| Sun 8 Apr 1990 | Craven | 3 | 1 | Serious |
| Thu 12 Apr 1990 | Craven | 1 | 1 | Slight |
| Fri 13 Apr 1990 | Bradford | 2 | 1 | Slight |
| Sat 14 Apr 1990 | Leeds | 4 | 1 | Slight |
| Sun 15 Apr 1990 | Craven | 1 | 2 | Slight |
| Fri 20 Apr 1990 | Craven | 2 | 2 | Serious |
| Tue 24 Apr 1990 | Leeds | 1 | 2 | Slight |
| Wed 25 Apr 1990 | Craven | 4 | 4 | Serious |
| Wed 25 Apr 1990 | Leeds | 1 | 1 | Slight |
| Wed 25 Apr 1990 | Leeds | 2 | 1 | Slight |
| Thu 26 Apr 1990 | Craven | 1 | 1 | Fatal |
| Sun 29 Apr 1990 | Craven | 2 | 3 | Serious |
| Tue 1 May 1990 | South Lakeland | 2 | 1 | Slight |
| Fri 4 May 1990 | Leeds | 2 | 1 | Slight |
| Sat 5 May 1990 | Craven | 3 | 2 | Serious |
| Tue 8 May 1990 | Bradford | 2 | 1 | Slight |
| Tue 8 May 1990 | Leeds | 2 | 1 | Serious |
| Tue 8 May 1990 | Leeds | 2 | 1 | Slight |
| Mon 14 May 1990 | South Lakeland | 1 | 1 | Slight |
| Wed 16 May 1990 | Craven | 1 | 1 | Slight |
| Wed 16 May 1990 | South Lakeland | 1 | 1 | Serious |
| Wed 16 May 1990 | South Lakeland | 4 | 2 | Slight |
| Wed 16 May 1990 | Bradford | 2 | 3 | Slight |
| Fri 18 May 1990 | South Lakeland | 1 | 1 | Slight |
| Fri 18 May 1990 | Craven | 2 | 1 | Slight |
| Fri 18 May 1990 | Craven | 1 | 2 | Slight |
| Sat 19 May 1990 | Leeds | 2 | 1 | Slight |
| Sun 20 May 1990 | Craven | 2 | 4 | Serious |
| Sun 20 May 1990 | South Lakeland | 1 | 1 | Slight |
| Sat 26 May 1990 | Craven | 1 | 1 | Serious |
| Mon 28 May 1990 | Craven | 3 | 1 | Slight |
| Thu 31 May 1990 | South Lakeland | 2 | 1 | Serious |
| Sat 2 Jun 1990 | Craven | 1 | 1 | Slight |
| Sat 2 Jun 1990 | Leeds | 2 | 1 | Slight |
| Sun 3 Jun 1990 | Craven | 2 | 5 | Serious |
| Tue 5 Jun 1990 | Leeds | 2 | 2 | Slight |
| Wed 6 Jun 1990 | South Lakeland | 1 | 1 | Serious |
| Thu 7 Jun 1990 | Leeds | 1 | 1 | Slight |
| Thu 7 Jun 1990 | Craven | 1 | 1 | Serious |
| Thu 7 Jun 1990 | Leeds | 2 | 2 | Slight |
| Fri 8 Jun 1990 | Leeds | 2 | 1 | Slight |
| Sat 9 Jun 1990 | Bradford | 1 | 2 | Slight |
| Mon 11 Jun 1990 | Craven | 2 | 1 | Serious |
| Fri 15 Jun 1990 | Bradford | 2 | 2 | Slight |
| Fri 15 Jun 1990 | Craven | 1 | 1 | Serious |
| Fri 15 Jun 1990 | Craven | 1 | 1 | Serious |
| Fri 15 Jun 1990 | Craven | 1 | 8 | Serious |
| Sat 16 Jun 1990 | Lancaster | 2 | 1 | Slight |
| Sat 16 Jun 1990 | Bradford | 1 | 1 | Fatal |
| Sat 16 Jun 1990 | Bradford | 1 | 1 | Serious |
| Tue 19 Jun 1990 | Leeds | 2 | 1 | Serious |
| Fri 22 Jun 1990 | Leeds | 2 | 1 | Slight |
| Sat 23 Jun 1990 | Bradford | 2 | 1 | Slight |
| Sun 24 Jun 1990 | Bradford | 2 | 3 | Slight |
| Sun 24 Jun 1990 | Craven | 2 | 1 | Slight |
| Tue 26 Jun 1990 | Leeds | 2 | 1 | Slight |
| Wed 27 Jun 1990 | Bradford | 4 | 1 | Slight |
| Wed 27 Jun 1990 | Leeds | 3 | 1 | Slight |
| Thu 28 Jun 1990 | Craven | 2 | 1 | Slight |
| Sat 30 Jun 1990 | Craven | 1 | 1 | Serious |
| Sat 30 Jun 1990 | Leeds | 1 | 1 | Slight |
| Sun 1 Jul 1990 | Leeds | 2 | 2 | Serious |
| Wed 4 Jul 1990 | South Lakeland | 2 | 3 | Slight |
| Thu 5 Jul 1990 | Leeds | 2 | 1 | Serious |
| Thu 5 Jul 1990 | Craven | 3 | 3 | Serious |
| Tue 10 Jul 1990 | Craven | 3 | 1 | Serious |
| Thu 12 Jul 1990 | Leeds | 1 | 1 | Slight |
| Fri 13 Jul 1990 | South Lakeland | 1 | 1 | Slight |
| Fri 13 Jul 1990 | Bradford | 2 | 1 | Slight |
| Mon 16 Jul 1990 | Craven | 1 | 1 | Slight |
| Wed 18 Jul 1990 | Leeds | 2 | 1 | Slight |
| Thu 19 Jul 1990 | South Lakeland | 2 | 2 | Serious |
| Fri 20 Jul 1990 | Leeds | 1 | 1 | Serious |
| Sat 21 Jul 1990 | Bradford | 3 | 1 | Slight |
| Sun 22 Jul 1990 | South Lakeland | 4 | 1 | Serious |
| Mon 23 Jul 1990 | South Lakeland | 2 | 1 | Serious |
| Tue 24 Jul 1990 | Leeds | 2 | 1 | Slight |
| Sat 28 Jul 1990 | Craven | 2 | 3 | Fatal |
| Sat 28 Jul 1990 | South Lakeland | 1 | 1 | Serious |
| Sun 29 Jul 1990 | Bradford | 2 | 1 | Slight |
| Mon 30 Jul 1990 | Bradford | 1 | 2 | Slight |
| Sat 4 Aug 1990 | South Lakeland | 2 | 1 | Slight |
| Sun 5 Aug 1990 | Leeds | 3 | 2 | Slight |
| Tue 7 Aug 1990 | Bradford | 1 | 1 | Slight |
| Wed 8 Aug 1990 | Leeds | 2 | 1 | Slight |
| Fri 10 Aug 1990 | Leeds | 2 | 1 | Slight |
| Sat 11 Aug 1990 | South Lakeland | 1 | 1 | Slight |
| Sun 12 Aug 1990 | Craven | 3 | 3 | Fatal |
| Tue 14 Aug 1990 | Leeds | 1 | 1 | Slight |
| Fri 17 Aug 1990 | Leeds | 1 | 1 | Serious |
| Sat 18 Aug 1990 | Leeds | 1 | 1 | Fatal |
| Wed 22 Aug 1990 | Craven | 1 | 1 | Slight |
| Fri 24 Aug 1990 | Craven | 1 | 1 | Slight |
| Fri 24 Aug 1990 | Lancaster | 2 | 1 | Slight |
| Fri 24 Aug 1990 | Craven | 2 | 1 | Serious |
| Sat 25 Aug 1990 | Leeds | 2 | 1 | Slight |
| Sat 25 Aug 1990 | South Lakeland | 3 | 1 | Serious |
| Sat 25 Aug 1990 | Leeds | 2 | 1 | Slight |
| Sun 26 Aug 1990 | Craven | 3 | 2 | Fatal |
| Mon 27 Aug 1990 | Craven | 3 | 2 | Slight |
| Mon 27 Aug 1990 | Craven | 1 | 1 | Serious |
| Wed 29 Aug 1990 | Lancaster | 2 | 1 | Slight |
| Thu 30 Aug 1990 | Leeds | 2 | 1 | Slight |
| Fri 31 Aug 1990 | South Lakeland | 2 | 3 | Slight |
| Sun 2 Sep 1990 | Craven | 3 | 1 | Serious |
| Tue 4 Sep 1990 | Craven | 2 | 1 | Serious |
| Tue 4 Sep 1990 | Bradford | 1 | 2 | Slight |
| Thu 6 Sep 1990 | Bradford | 2 | 1 | Slight |
| Sat 8 Sep 1990 | Craven | 3 | 1 | Slight |
| Sat 8 Sep 1990 | South Lakeland | 1 | 1 | Slight |
| Sun 9 Sep 1990 | Bradford | 1 | 1 | Slight |
| Sun 9 Sep 1990 | Craven | 1 | 2 | Serious |
| Tue 11 Sep 1990 | South Lakeland | 2 | 1 | Slight |
| Tue 11 Sep 1990 | Leeds | 2 | 2 | Slight |
| Wed 12 Sep 1990 | Bradford | 4 | 1 | Slight |
| Sun 16 Sep 1990 | Craven | 1 | 1 | Serious |
| Wed 19 Sep 1990 | Craven | 2 | 2 | Slight |
| Thu 20 Sep 1990 | Bradford | 3 | 2 | Slight |
| Thu 20 Sep 1990 | Bradford | 2 | 4 | Slight |
| Sat 22 Sep 1990 | Craven | 3 | 2 | Slight |
| Sat 22 Sep 1990 | Bradford | 2 | 1 | Slight |
| Sat 22 Sep 1990 | Craven | 2 | 5 | Serious |
| Sun 23 Sep 1990 | Leeds | 2 | 1 | Serious |
| Sun 23 Sep 1990 | Bradford | 2 | 2 | Slight |
| Tue 25 Sep 1990 | Bradford | 2 | 1 | Slight |
| Thu 27 Sep 1990 | Leeds | 1 | 1 | Slight |
| Mon 1 Oct 1990 | Leeds | 4 | 2 | Slight |
| Thu 4 Oct 1990 | Leeds | 3 | 2 | Slight |
| Mon 8 Oct 1990 | Bradford | 1 | 1 | Slight |
| Wed 10 Oct 1990 | Leeds | 3 | 1 | Slight |
| Wed 10 Oct 1990 | Bradford | 2 | 1 | Slight |
| Thu 11 Oct 1990 | South Lakeland | 1 | 1 | Serious |
| Fri 12 Oct 1990 | Craven | 1 | 1 | Serious |
| Sun 14 Oct 1990 | Leeds | 2 | 3 | Slight |
| Sun 14 Oct 1990 | Craven | 2 | 2 | Slight |
| Sun 14 Oct 1990 | Craven | 1 | 1 | Serious |
| Mon 15 Oct 1990 | Lancaster | 2 | 3 | Slight |
| Fri 19 Oct 1990 | Leeds | 2 | 1 | Slight |
| Fri 19 Oct 1990 | Bradford | 2 | 3 | Serious |
| Fri 19 Oct 1990 | Bradford | 2 | 1 | Slight |
| Fri 19 Oct 1990 | Leeds | 2 | 1 | Slight |
| Sat 20 Oct 1990 | Craven | 1 | 1 | Slight |
| Sun 21 Oct 1990 | Leeds | 1 | 2 | Slight |
| Sun 21 Oct 1990 | Leeds | 2 | 1 | Slight |
| Mon 22 Oct 1990 | Bradford | 2 | 3 | Slight |
| Thu 25 Oct 1990 | Bradford | 1 | 1 | Slight |
| Fri 26 Oct 1990 | Craven | 2 | 2 | Fatal |
| Mon 29 Oct 1990 | Bradford | 2 | 1 | Slight |
| Wed 31 Oct 1990 | Leeds | 2 | 2 | Slight |
| Sun 4 Nov 1990 | Craven | 2 | 1 | Slight |
| Tue 6 Nov 1990 | Leeds | 2 | 1 | Slight |
| Tue 6 Nov 1990 | Craven | 2 | 1 | Slight |
| Tue 6 Nov 1990 | Leeds | 3 | 1 | Slight |
| Sat 10 Nov 1990 | Bradford | 1 | 1 | Slight |
| Wed 14 Nov 1990 | Leeds | 2 | 1 | Slight |
| Wed 14 Nov 1990 | Leeds | 1 | 1 | Fatal |
| Thu 15 Nov 1990 | South Lakeland | 2 | 1 | Serious |
| Fri 16 Nov 1990 | South Lakeland | 1 | 1 | Slight |
| Fri 16 Nov 1990 | Leeds | 2 | 1 | Slight |
| Sat 17 Nov 1990 | Leeds | 2 | 1 | Slight |
| Sat 17 Nov 1990 | Leeds | 2 | 1 | Slight |
| Sun 18 Nov 1990 | Leeds | 3 | 1 | Slight |
| Mon 19 Nov 1990 | Leeds | 1 | 1 | Slight |
| Thu 22 Nov 1990 | Leeds | 2 | 1 | Slight |
| Fri 23 Nov 1990 | Leeds | 3 | 1 | Slight |
| Fri 23 Nov 1990 | Craven | 2 | 1 | Slight |
| Fri 23 Nov 1990 | South Lakeland | 1 | 1 | Serious |
| Sat 24 Nov 1990 | Bradford | 2 | 2 | Fatal |
| Sat 24 Nov 1990 | Leeds | 4 | 1 | Slight |
| Sat 24 Nov 1990 | Leeds | 2 | 1 | Slight |
| Sat 24 Nov 1990 | Leeds | 1 | 1 | Slight |
| Tue 27 Nov 1990 | Leeds | 2 | 1 | Slight |
| Fri 30 Nov 1990 | Bradford | 2 | 1 | Slight |
| Mon 3 Dec 1990 | Leeds | 2 | 1 | Slight |
| Wed 5 Dec 1990 | Craven | 2 | 1 | Slight |
| Thu 6 Dec 1990 | Bradford | 2 | 1 | Slight |
| Thu 6 Dec 1990 | Leeds | 2 | 2 | Slight |
| Thu 6 Dec 1990 | Bradford | 1 | 1 | Serious |
| Thu 6 Dec 1990 | Craven | 4 | 1 | Serious |
| Mon 10 Dec 1990 | Craven | 2 | 3 | Serious |
| Tue 11 Dec 1990 | Craven | 1 | 1 | Serious |
| Thu 13 Dec 1990 | Leeds | 4 | 1 | Slight |
| Fri 14 Dec 1990 | Leeds | 1 | 1 | Slight |
| Fri 14 Dec 1990 | South Lakeland | 2 | 2 | Slight |
| Sun 16 Dec 1990 | Leeds | 2 | 1 | Slight |
| Sat 22 Dec 1990 | Craven | 2 | 2 | Slight |
| Wed 26 Dec 1990 | Bradford | 2 | 3 | Slight |
| Thu 27 Dec 1990 | Bradford | 2 | 1 | Fatal |