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