Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 1 Jan 1986 | Leeds | 1 | 1 | Slight |
| Wed 8 Jan 1986 | Craven | 5 | 1 | Slight |
| Thu 9 Jan 1986 | Craven | 1 | 3 | Serious |
| Thu 9 Jan 1986 | Bradford | 2 | 1 | Serious |
| Thu 9 Jan 1986 | Leeds | 2 | 1 | Slight |
| Fri 10 Jan 1986 | South Lakeland | 2 | 1 | Serious |
| Thu 16 Jan 1986 | Leeds | 2 | 1 | Slight |
| Thu 16 Jan 1986 | Leeds | 2 | 1 | Slight |
| Fri 17 Jan 1986 | Leeds | 2 | 1 | Fatal |
| Tue 21 Jan 1986 | Leeds | 3 | 1 | Slight |
| Tue 21 Jan 1986 | Craven | 1 | 3 | Slight |
| Thu 23 Jan 1986 | South Lakeland | 2 | 1 | Slight |
| Fri 24 Jan 1986 | Leeds | 3 | 1 | Slight |
| Fri 24 Jan 1986 | South Lakeland | 2 | 1 | Slight |
| Fri 24 Jan 1986 | Craven | 1 | 1 | Fatal |
| Fri 24 Jan 1986 | Leeds | 1 | 1 | Serious |
| Tue 28 Jan 1986 | Leeds | 2 | 1 | Slight |
| Wed 29 Jan 1986 | Bradford | 2 | 1 | Slight |
| Sat 1 Feb 1986 | South Lakeland | 2 | 1 | Serious |
| Sat 1 Feb 1986 | South Lakeland | 1 | 1 | Serious |
| Mon 3 Feb 1986 | Leeds | 2 | 1 | Slight |
| Tue 4 Feb 1986 | Leeds | 2 | 1 | Slight |
| Wed 5 Feb 1986 | Leeds | 2 | 1 | Slight |
| Wed 5 Feb 1986 | Leeds | 4 | 3 | Serious |
| Thu 6 Feb 1986 | Bradford | 2 | 7 | Slight |
| Sat 8 Feb 1986 | Leeds | 1 | 3 | Serious |
| Sat 8 Feb 1986 | Leeds | 2 | 2 | Slight |
| Tue 11 Feb 1986 | Leeds | 3 | 1 | Slight |
| Sun 16 Feb 1986 | Leeds | 1 | 1 | Slight |
| Thu 20 Feb 1986 | Bradford | 2 | 1 | Serious |
| Fri 21 Feb 1986 | Leeds | 1 | 1 | Serious |
| Fri 21 Feb 1986 | South Lakeland | 2 | 1 | Slight |
| Mon 24 Feb 1986 | Craven | 1 | 1 | Slight |
| Mon 24 Feb 1986 | Craven | 2 | 1 | Serious |
| Fri 28 Feb 1986 | Leeds | 1 | 1 | Slight |
| Thu 6 Mar 1986 | Craven | 2 | 1 | Slight |
| Fri 7 Mar 1986 | Craven | 1 | 1 | Slight |
| Mon 10 Mar 1986 | Bradford | 1 | 1 | Serious |
| Wed 12 Mar 1986 | South Lakeland | 1 | 3 | Slight |
| Wed 19 Mar 1986 | Leeds | 1 | 1 | Slight |
| Thu 20 Mar 1986 | Leeds | 2 | 2 | Slight |
| Fri 21 Mar 1986 | Leeds | 3 | 2 | Slight |
| Mon 24 Mar 1986 | Lancaster | 2 | 1 | Serious |
| Sun 30 Mar 1986 | Leeds | 1 | 1 | Slight |
| Tue 1 Apr 1986 | Craven | 1 | 1 | Serious |
| Wed 2 Apr 1986 | Bradford | 2 | 1 | Slight |
| Wed 2 Apr 1986 | Leeds | 1 | 2 | Serious |
| Thu 10 Apr 1986 | Bradford | 2 | 1 | Slight |
| Sat 12 Apr 1986 | Bradford | 1 | 1 | Slight |
| Mon 14 Apr 1986 | South Lakeland | 2 | 1 | Serious |
| Tue 15 Apr 1986 | Leeds | 2 | 2 | Slight |
| Tue 15 Apr 1986 | Leeds | 1 | 2 | Serious |
| Wed 16 Apr 1986 | Leeds | 2 | 1 | Slight |
| Wed 16 Apr 1986 | Leeds | 1 | 1 | Slight |
| Thu 17 Apr 1986 | Leeds | 2 | 1 | Slight |
| Sun 20 Apr 1986 | Leeds | 1 | 1 | Slight |
| Sun 20 Apr 1986 | Craven | 2 | 2 | Slight |
| Tue 22 Apr 1986 | Bradford | 1 | 1 | Slight |
| Tue 22 Apr 1986 | Leeds | 2 | 1 | Slight |
| Wed 23 Apr 1986 | Bradford | 2 | 1 | Fatal |
| Thu 24 Apr 1986 | South Lakeland | 2 | 2 | Slight |
| Sun 27 Apr 1986 | Craven | 2 | 4 | Serious |
| Sun 27 Apr 1986 | Bradford | 2 | 1 | Slight |
| Sun 27 Apr 1986 | South Lakeland | 2 | 1 | Slight |
| Mon 28 Apr 1986 | South Lakeland | 1 | 1 | Slight |
| Tue 29 Apr 1986 | Leeds | 3 | 2 | Slight |
| Tue 29 Apr 1986 | Bradford | 1 | 1 | Slight |
| Thu 1 May 1986 | Craven | 2 | 3 | Serious |
| Fri 2 May 1986 | Craven | 1 | 7 | Serious |
| Sat 3 May 1986 | Craven | 1 | 2 | Slight |
| Sun 4 May 1986 | Bradford | 2 | 1 | Slight |
| Sun 4 May 1986 | Bradford | 1 | 2 | Slight |
| Wed 7 May 1986 | Leeds | 1 | 1 | Slight |
| Thu 8 May 1986 | Bradford | 2 | 1 | Slight |
| Thu 8 May 1986 | Leeds | 2 | 1 | Slight |
| Sun 11 May 1986 | Lancaster | 2 | 2 | Slight |
| Mon 12 May 1986 | Leeds | 2 | 2 | Slight |
| Mon 12 May 1986 | South Lakeland | 2 | 1 | Slight |
| Sat 17 May 1986 | Bradford | 2 | 3 | Serious |
| Sat 17 May 1986 | Leeds | 2 | 1 | Slight |
| Mon 19 May 1986 | Craven | 3 | 4 | Slight |
| Mon 19 May 1986 | Bradford | 2 | 1 | Slight |
| Tue 20 May 1986 | Lancaster | 2 | 1 | Slight |
| Tue 20 May 1986 | Leeds | 2 | 1 | Serious |
| Fri 23 May 1986 | Bradford | 2 | 4 | Serious |
| Sat 24 May 1986 | Leeds | 1 | 1 | Slight |
| Sat 24 May 1986 | Leeds | 2 | 5 | Serious |
| Sun 25 May 1986 | Craven | 3 | 2 | Slight |
| Sun 25 May 1986 | Craven | 3 | 1 | Serious |
| Mon 26 May 1986 | Leeds | 2 | 1 | Serious |
| Wed 28 May 1986 | Leeds | 3 | 1 | Slight |
| Sat 31 May 1986 | Leeds | 2 | 1 | Slight |
| Tue 3 Jun 1986 | Bradford | 2 | 1 | Serious |
| Tue 3 Jun 1986 | Leeds | 2 | 1 | Slight |
| Thu 5 Jun 1986 | Bradford | 2 | 1 | Slight |
| Mon 9 Jun 1986 | South Lakeland | 2 | 1 | Slight |
| Wed 11 Jun 1986 | Bradford | 1 | 1 | Slight |
| Thu 12 Jun 1986 | Craven | 4 | 2 | Slight |
| Fri 13 Jun 1986 | Leeds | 2 | 1 | Slight |
| Sat 14 Jun 1986 | Leeds | 1 | 1 | Slight |
| Sun 15 Jun 1986 | Craven | 2 | 2 | Slight |
| Sun 15 Jun 1986 | Craven | 2 | 3 | Serious |
| Sun 15 Jun 1986 | South Lakeland | 1 | 2 | Slight |
| Mon 16 Jun 1986 | South Lakeland | 2 | 1 | Slight |
| Wed 18 Jun 1986 | Bradford | 1 | 1 | Slight |
| Thu 19 Jun 1986 | Leeds | 2 | 1 | Slight |
| Fri 20 Jun 1986 | Leeds | 1 | 1 | Slight |
| Fri 20 Jun 1986 | Craven | 3 | 1 | Slight |
| Sun 22 Jun 1986 | Leeds | 3 | 1 | Slight |
| Wed 25 Jun 1986 | Leeds | 1 | 1 | Slight |
| Wed 25 Jun 1986 | Leeds | 2 | 1 | Slight |
| Thu 26 Jun 1986 | Craven | 3 | 1 | Slight |
| Thu 26 Jun 1986 | Craven | 3 | 2 | Serious |
| Fri 27 Jun 1986 | Bradford | 2 | 1 | Serious |
| Sun 29 Jun 1986 | South Lakeland | 1 | 2 | Serious |
| Mon 30 Jun 1986 | Leeds | 4 | 1 | Slight |
| Mon 30 Jun 1986 | Craven | 2 | 3 | Serious |
| Tue 1 Jul 1986 | Leeds | 2 | 2 | Slight |
| Thu 3 Jul 1986 | Leeds | 2 | 1 | Slight |
| Thu 3 Jul 1986 | Craven | 2 | 1 | Serious |
| Fri 4 Jul 1986 | Leeds | 2 | 1 | Slight |
| Sun 6 Jul 1986 | Leeds | 2 | 1 | Slight |
| Sun 6 Jul 1986 | Craven | 1 | 2 | Serious |
| Fri 11 Jul 1986 | Craven | 2 | 2 | Serious |
| Sat 12 Jul 1986 | Craven | 1 | 1 | Serious |
| Wed 16 Jul 1986 | Craven | 1 | 2 | Serious |
| Thu 17 Jul 1986 | Lancaster | 2 | 1 | Slight |
| Fri 18 Jul 1986 | Leeds | 2 | 1 | Slight |
| Mon 21 Jul 1986 | Bradford | 2 | 1 | Serious |
| Wed 23 Jul 1986 | Bradford | 2 | 1 | Slight |
| Wed 23 Jul 1986 | Bradford | 2 | 1 | Slight |
| Sat 26 Jul 1986 | Lancaster | 1 | 2 | Slight |
| Tue 29 Jul 1986 | South Lakeland | 1 | 1 | Serious |
| Wed 30 Jul 1986 | Craven | 1 | 1 | Slight |
| Thu 31 Jul 1986 | Leeds | 1 | 1 | Slight |
| Thu 31 Jul 1986 | Bradford | 1 | 2 | Fatal |
| Fri 1 Aug 1986 | Leeds | 1 | 1 | Slight |
| Fri 1 Aug 1986 | Leeds | 2 | 1 | Slight |
| Fri 1 Aug 1986 | Bradford | 1 | 1 | Slight |
| Wed 6 Aug 1986 | Bradford | 2 | 4 | Fatal |
| Wed 6 Aug 1986 | Leeds | 2 | 1 | Slight |
| Wed 6 Aug 1986 | Leeds | 2 | 3 | Slight |
| Wed 6 Aug 1986 | Craven | 1 | 1 | Slight |
| Thu 7 Aug 1986 | Bradford | 5 | 3 | Slight |
| Sun 10 Aug 1986 | Craven | 1 | 1 | Slight |
| Mon 11 Aug 1986 | Leeds | 3 | 1 | Slight |
| Tue 12 Aug 1986 | South Lakeland | 2 | 1 | Slight |
| Wed 13 Aug 1986 | Craven | 2 | 1 | Serious |
| Thu 14 Aug 1986 | Leeds | 2 | 1 | Slight |
| Thu 14 Aug 1986 | Craven | 2 | 1 | Serious |
| Thu 14 Aug 1986 | Bradford | 2 | 1 | Slight |
| Sat 16 Aug 1986 | South Lakeland | 2 | 2 | Serious |
| Sat 16 Aug 1986 | Leeds | 2 | 1 | Slight |
| Sun 17 Aug 1986 | Craven | 1 | 1 | Slight |
| Mon 18 Aug 1986 | Bradford | 1 | 1 | Serious |
| Tue 19 Aug 1986 | Craven | 1 | 2 | Slight |
| Wed 20 Aug 1986 | Leeds | 3 | 1 | Slight |
| Fri 22 Aug 1986 | Leeds | 1 | 1 | Slight |
| Sat 23 Aug 1986 | Leeds | 2 | 1 | Slight |
| Sat 23 Aug 1986 | South Lakeland | 5 | 1 | Slight |
| Sun 24 Aug 1986 | Craven | 5 | 5 | Fatal |
| Tue 26 Aug 1986 | Leeds | 2 | 1 | Slight |
| Sun 31 Aug 1986 | Lancaster | 1 | 1 | Slight |
| Sun 31 Aug 1986 | Lancaster | 1 | 1 | Slight |
| Wed 3 Sep 1986 | Bradford | 2 | 1 | Slight |
| Wed 3 Sep 1986 | Leeds | 2 | 1 | Fatal |
| Sun 7 Sep 1986 | Craven | 1 | 1 | Serious |
| Wed 10 Sep 1986 | South Lakeland | 1 | 2 | Slight |
| Wed 10 Sep 1986 | South Lakeland | 1 | 2 | Slight |
| Thu 11 Sep 1986 | Leeds | 1 | 1 | Slight |
| Thu 11 Sep 1986 | Craven | 2 | 2 | Serious |
| Sun 14 Sep 1986 | Bradford | 2 | 1 | Slight |
| Tue 16 Sep 1986 | Leeds | 2 | 1 | Serious |
| Wed 17 Sep 1986 | Bradford | 2 | 1 | Slight |
| Thu 18 Sep 1986 | Craven | 3 | 2 | Slight |
| Thu 18 Sep 1986 | Craven | 3 | 2 | Slight |
| Sat 20 Sep 1986 | Bradford | 1 | 2 | Slight |
| Sun 21 Sep 1986 | Leeds | 1 | 1 | Slight |
| Sun 21 Sep 1986 | Bradford | 2 | 1 | Slight |
| Thu 25 Sep 1986 | Bradford | 1 | 1 | Slight |
| Fri 26 Sep 1986 | Leeds | 2 | 1 | Slight |
| Sat 27 Sep 1986 | Leeds | 3 | 4 | Slight |
| Sat 27 Sep 1986 | Craven | 2 | 3 | Serious |
| Tue 30 Sep 1986 | South Lakeland | 1 | 1 | Slight |
| Tue 30 Sep 1986 | Bradford | 2 | 1 | Slight |
| Thu 2 Oct 1986 | South Lakeland | 2 | 2 | Slight |
| Fri 3 Oct 1986 | Leeds | 2 | 1 | Slight |
| Sat 4 Oct 1986 | Leeds | 2 | 1 | Fatal |
| Sun 5 Oct 1986 | Leeds | 3 | 1 | Slight |
| Mon 6 Oct 1986 | Leeds | 2 | 1 | Slight |
| Wed 8 Oct 1986 | Leeds | 1 | 2 | Serious |
| Sat 11 Oct 1986 | South Lakeland | 1 | 1 | Slight |
| Sat 11 Oct 1986 | Leeds | 2 | 1 | Slight |
| Sun 12 Oct 1986 | South Lakeland | 2 | 3 | Serious |
| Tue 14 Oct 1986 | Leeds | 1 | 1 | Serious |
| Wed 15 Oct 1986 | South Lakeland | 2 | 1 | Slight |
| Sun 19 Oct 1986 | Bradford | 3 | 2 | Slight |
| Sun 19 Oct 1986 | South Lakeland | 1 | 2 | Serious |
| Mon 20 Oct 1986 | Leeds | 3 | 1 | Slight |
| Mon 20 Oct 1986 | South Lakeland | 3 | 1 | Slight |
| Wed 22 Oct 1986 | Lancaster | 2 | 1 | Slight |
| Thu 23 Oct 1986 | Leeds | 1 | 1 | Slight |
| Thu 23 Oct 1986 | Leeds | 2 | 1 | Slight |
| Fri 24 Oct 1986 | Craven | 2 | 2 | Serious |
| Fri 24 Oct 1986 | Leeds | 2 | 1 | Slight |
| Sun 26 Oct 1986 | Leeds | 1 | 1 | Slight |
| Mon 27 Oct 1986 | Craven | 1 | 1 | Slight |
| Tue 28 Oct 1986 | South Lakeland | 2 | 2 | Slight |
| Thu 30 Oct 1986 | Bradford | 1 | 1 | Serious |
| Thu 30 Oct 1986 | Leeds | 2 | 1 | Slight |
| Thu 30 Oct 1986 | Leeds | 2 | 1 | Slight |
| Thu 30 Oct 1986 | Craven | 1 | 1 | Serious |
| Thu 30 Oct 1986 | South Lakeland | 5 | 2 | Serious |
| Sat 1 Nov 1986 | Leeds | 2 | 1 | Serious |
| Sat 1 Nov 1986 | Leeds | 1 | 3 | Slight |
| Sat 1 Nov 1986 | Bradford | 1 | 1 | Serious |
| Sun 2 Nov 1986 | Bradford | 2 | 1 | Slight |
| Mon 3 Nov 1986 | Leeds | 2 | 3 | Serious |
| Wed 5 Nov 1986 | South Lakeland | 1 | 1 | Slight |
| Fri 7 Nov 1986 | Leeds | 2 | 2 | Slight |
| Fri 7 Nov 1986 | Leeds | 2 | 2 | Slight |
| Sat 8 Nov 1986 | Leeds | 2 | 1 | Slight |
| Sun 9 Nov 1986 | Craven | 1 | 1 | Slight |
| Mon 10 Nov 1986 | Leeds | 2 | 1 | Slight |
| Fri 14 Nov 1986 | Craven | 1 | 1 | Serious |
| Fri 14 Nov 1986 | Bradford | 2 | 1 | Slight |
| Sat 15 Nov 1986 | Leeds | 1 | 4 | Slight |
| Mon 17 Nov 1986 | Leeds | 2 | 1 | Slight |
| Mon 17 Nov 1986 | Bradford | 2 | 1 | Slight |
| Wed 19 Nov 1986 | South Lakeland | 2 | 2 | Serious |
| Wed 19 Nov 1986 | Craven | 2 | 2 | Serious |
| Wed 19 Nov 1986 | Craven | 2 | 1 | Slight |
| Mon 24 Nov 1986 | Bradford | 3 | 1 | Slight |
| Tue 25 Nov 1986 | South Lakeland | 1 | 1 | Slight |
| Tue 25 Nov 1986 | South Lakeland | 1 | 1 | Slight |
| Thu 27 Nov 1986 | Leeds | 1 | 1 | Slight |
| Mon 1 Dec 1986 | Bradford | 2 | 2 | Slight |
| Mon 1 Dec 1986 | South Lakeland | 2 | 1 | Serious |
| Tue 2 Dec 1986 | Leeds | 1 | 1 | Serious |
| Wed 3 Dec 1986 | Bradford | 1 | 1 | Serious |
| Thu 4 Dec 1986 | Leeds | 2 | 2 | Slight |
| Fri 5 Dec 1986 | Craven | 2 | 1 | Slight |
| Fri 5 Dec 1986 | South Lakeland | 2 | 1 | Slight |
| Fri 5 Dec 1986 | Leeds | 2 | 1 | Serious |
| Sat 6 Dec 1986 | Craven | 2 | 1 | Slight |
| Wed 10 Dec 1986 | Bradford | 2 | 1 | Slight |
| Thu 11 Dec 1986 | Bradford | 1 | 1 | Serious |
| Fri 12 Dec 1986 | Leeds | 2 | 1 | Slight |
| Tue 16 Dec 1986 | Craven | 1 | 1 | Slight |
| Wed 17 Dec 1986 | Leeds | 1 | 1 | Slight |
| Wed 17 Dec 1986 | Craven | 3 | 2 | Slight |
| Thu 18 Dec 1986 | Leeds | 2 | 1 | Slight |
| Sat 20 Dec 1986 | South Lakeland | 3 | 1 | Slight |
| Fri 26 Dec 1986 | Leeds | 2 | 1 | Slight |
| Sun 28 Dec 1986 | Craven | 2 | 4 | Serious |
| Tue 30 Dec 1986 | Leeds | 3 | 2 | Slight |