Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 5 Jan 2011 | Leeds | 6 | 4 | Serious |
| Sat 8 Jan 2011 | Bradford | 2 | 1 | Slight |
| Wed 12 Jan 2011 | Leeds | 1 | 1 | Serious |
| Sun 23 Jan 2011 | Bradford | 2 | 3 | Slight |
| Mon 24 Jan 2011 | Leeds | 3 | 4 | Slight |
| Tue 1 Feb 2011 | Bradford | 2 | 3 | Slight |
| Thu 3 Feb 2011 | Leeds | 2 | 1 | Slight |
| Thu 3 Feb 2011 | Bradford | 2 | 2 | Slight |
| Thu 3 Feb 2011 | Bradford | 2 | 2 | Slight |
| Tue 8 Feb 2011 | Bradford | 1 | 1 | Slight |
| Tue 15 Feb 2011 | Leeds | 1 | 1 | Slight |
| Sat 19 Feb 2011 | Bradford | 3 | 1 | Slight |
| Mon 21 Feb 2011 | Bradford | 3 | 2 | Slight |
| Mon 21 Feb 2011 | Bradford | 3 | 2 | Slight |
| Mon 21 Feb 2011 | Leeds | 2 | 2 | Slight |
| Fri 25 Feb 2011 | Bradford | 2 | 1 | Slight |
| Mon 28 Feb 2011 | Calderdale | 1 | 1 | Slight |
| Fri 4 Mar 2011 | Bradford | 2 | 2 | Slight |
| Tue 8 Mar 2011 | Bradford | 1 | 1 | Serious |
| Wed 9 Mar 2011 | Leeds | 2 | 1 | Slight |
| Thu 10 Mar 2011 | Bradford | 1 | 1 | Slight |
| Sat 12 Mar 2011 | Bradford | 2 | 1 | Serious |
| Thu 17 Mar 2011 | Bradford | 2 | 3 | Slight |
| Wed 23 Mar 2011 | Bradford | 2 | 1 | Slight |
| Wed 23 Mar 2011 | Bradford | 1 | 1 | Serious |
| Fri 8 Apr 2011 | Calderdale | 3 | 2 | Slight |
| Sun 10 Apr 2011 | Bradford | 2 | 1 | Slight |
| Tue 12 Apr 2011 | Leeds | 3 | 1 | Slight |
| Wed 13 Apr 2011 | Bradford | 2 | 1 | Slight |
| Wed 13 Apr 2011 | Bradford | 2 | 1 | Slight |
| Sun 17 Apr 2011 | Leeds | 2 | 1 | Slight |
| Wed 20 Apr 2011 | Bradford | 2 | 2 | Slight |
| Sun 24 Apr 2011 | Bradford | 2 | 1 | Slight |
| Mon 25 Apr 2011 | Bradford | 2 | 2 | Slight |
| Mon 25 Apr 2011 | Bradford | 2 | 2 | Slight |
| Sun 1 May 2011 | Bradford | 1 | 1 | Slight |
| Wed 4 May 2011 | Bradford | 2 | 1 | Slight |
| Wed 4 May 2011 | Leeds | 2 | 2 | Slight |
| Thu 5 May 2011 | Leeds | 2 | 1 | Slight |
| Sun 8 May 2011 | Leeds | 4 | 2 | Slight |
| Tue 10 May 2011 | Bradford | 2 | 2 | Slight |
| Fri 13 May 2011 | Calderdale | 1 | 2 | Slight |
| Thu 19 May 2011 | Bradford | 2 | 1 | Slight |
| Thu 19 May 2011 | Bradford | 3 | 2 | Slight |
| Sun 22 May 2011 | Bradford | 2 | 1 | Slight |
| Sun 22 May 2011 | Leeds | 1 | 1 | Slight |
| Sun 22 May 2011 | Leeds | 2 | 2 | Slight |
| Sun 5 Jun 2011 | Bradford | 2 | 1 | Slight |
| Wed 8 Jun 2011 | Bradford | 2 | 1 | Slight |
| Thu 9 Jun 2011 | Bradford | 2 | 1 | Slight |
| Sun 12 Jun 2011 | Bradford | 4 | 1 | Slight |
| Tue 14 Jun 2011 | Bradford | 3 | 4 | Serious |
| Thu 16 Jun 2011 | Leeds | 3 | 2 | Slight |
| Fri 24 Jun 2011 | Leeds | 1 | 4 | Fatal |
| Fri 24 Jun 2011 | Leeds | 1 | 4 | Fatal |
| Wed 29 Jun 2011 | Calderdale | 2 | 1 | Slight |
| Tue 5 Jul 2011 | Bradford | 2 | 1 | Slight |
| Sun 10 Jul 2011 | Bradford | 5 | 1 | Slight |
| Tue 12 Jul 2011 | Bradford | 2 | 2 | Slight |
| Wed 13 Jul 2011 | Bradford | 1 | 1 | Serious |
| Sat 16 Jul 2011 | Calderdale | 1 | 1 | Serious |
| Sat 30 Jul 2011 | Leeds | 2 | 1 | Fatal |
| Sun 31 Jul 2011 | Bradford | 4 | 3 | Slight |
| Wed 3 Aug 2011 | Bradford | 1 | 3 | Slight |
| Mon 8 Aug 2011 | Bradford | 1 | 1 | Slight |
| Fri 12 Aug 2011 | Leeds | 2 | 1 | Slight |
| Mon 15 Aug 2011 | Bradford | 2 | 2 | Slight |
| Wed 17 Aug 2011 | Leeds | 1 | 1 | Slight |
| Wed 17 Aug 2011 | Bradford | 2 | 4 | Slight |
| Wed 17 Aug 2011 | Bradford | 2 | 1 | Slight |
| Thu 18 Aug 2011 | Bradford | 2 | 1 | Slight |
| Thu 25 Aug 2011 | Calderdale | 2 | 1 | Slight |
| Mon 29 Aug 2011 | Bradford | 2 | 1 | Slight |
| Wed 31 Aug 2011 | Leeds | 2 | 1 | Slight |
| Fri 2 Sep 2011 | Leeds | 2 | 3 | Slight |
| Fri 2 Sep 2011 | Leeds | 2 | 3 | Slight |
| Fri 2 Sep 2011 | Bradford | 1 | 1 | Slight |
| Sat 3 Sep 2011 | Leeds | 2 | 2 | Slight |
| Mon 5 Sep 2011 | Bradford | 2 | 2 | Slight |
| Tue 6 Sep 2011 | Bradford | 2 | 2 | Slight |
| Fri 9 Sep 2011 | Bradford | 5 | 6 | Slight |
| Wed 14 Sep 2011 | Leeds | 3 | 3 | Slight |
| Wed 14 Sep 2011 | Bradford | 2 | 4 | Slight |
| Sat 17 Sep 2011 | Bradford | 3 | 6 | Slight |
| Thu 22 Sep 2011 | Leeds | 2 | 1 | Serious |
| Tue 27 Sep 2011 | Leeds | 2 | 2 | Slight |
| Fri 30 Sep 2011 | Bradford | 2 | 1 | Slight |
| Fri 30 Sep 2011 | Bradford | 2 | 4 | Slight |
| Sat 1 Oct 2011 | Bradford | 1 | 1 | Fatal |
| Sat 1 Oct 2011 | Leeds | 2 | 2 | Slight |
| Sun 2 Oct 2011 | Bradford | 1 | 1 | Slight |
| Sun 2 Oct 2011 | Bradford | 2 | 1 | Slight |
| Thu 6 Oct 2011 | Bradford | 2 | 2 | Slight |
| Thu 6 Oct 2011 | Leeds | 4 | 1 | Slight |
| Sun 9 Oct 2011 | Leeds | 2 | 1 | Slight |
| Fri 14 Oct 2011 | Bradford | 2 | 1 | Slight |
| Sun 16 Oct 2011 | Calderdale | 1 | 1 | Slight |
| Thu 20 Oct 2011 | Bradford | 1 | 1 | Slight |
| Sun 23 Oct 2011 | Leeds | 2 | 2 | Slight |
| Wed 26 Oct 2011 | Bradford | 2 | 1 | Slight |
| Wed 26 Oct 2011 | Bradford | 3 | 1 | Slight |
| Wed 26 Oct 2011 | Bradford | 2 | 1 | Slight |
| Thu 27 Oct 2011 | Leeds | 2 | 1 | Slight |
| Thu 3 Nov 2011 | Bradford | 2 | 1 | Slight |
| Sat 5 Nov 2011 | Bradford | 2 | 1 | Slight |
| Sat 5 Nov 2011 | Bradford | 1 | 1 | Serious |
| Mon 7 Nov 2011 | Leeds | 2 | 1 | Slight |
| Mon 7 Nov 2011 | Bradford | 2 | 1 | Slight |
| Mon 7 Nov 2011 | Bradford | 1 | 1 | Serious |
| Tue 8 Nov 2011 | Calderdale | 2 | 1 | Slight |
| Tue 8 Nov 2011 | Bradford | 1 | 2 | Slight |
| Wed 9 Nov 2011 | Calderdale | 1 | 1 | Serious |
| Wed 16 Nov 2011 | Calderdale | 2 | 2 | Slight |
| Fri 2 Dec 2011 | Leeds | 2 | 1 | Slight |
| Fri 2 Dec 2011 | Leeds | 3 | 1 | Serious |
| Tue 6 Dec 2011 | Leeds | 1 | 2 | Serious |
| Thu 8 Dec 2011 | Leeds | 3 | 2 | Slight |
| Sun 11 Dec 2011 | Leeds | 2 | 1 | Slight |
| Mon 12 Dec 2011 | Bradford | 1 | 1 | Serious |
| Wed 14 Dec 2011 | Leeds | 2 | 1 | Slight |
| Sat 17 Dec 2011 | Leeds | 2 | 3 | Slight |
| Sat 17 Dec 2011 | Leeds | 2 | 3 | Slight |
| Sun 18 Dec 2011 | Bradford | 2 | 1 | Serious |
| Mon 19 Dec 2011 | Leeds | 2 | 1 | Slight |
| Tue 20 Dec 2011 | Bradford | 2 | 1 | Slight |
| Tue 20 Dec 2011 | Bradford | 2 | 1 | Slight |
| Thu 22 Dec 2011 | Leeds | 1 | 1 | Serious |
| Wed 28 Dec 2011 | Bradford | 2 | 1 | Slight |