Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 3 Jan 1998 | Leeds | 2 | 3 | Slight |
| Mon 5 Jan 1998 | Bradford | 2 | 3 | Slight |
| Tue 6 Jan 1998 | Craven | 2 | 1 | Slight |
| Wed 7 Jan 1998 | Leeds | 2 | 1 | Serious |
| Thu 8 Jan 1998 | South Lakeland | 2 | 1 | Slight |
| Thu 8 Jan 1998 | South Lakeland | 2 | 1 | Slight |
| Wed 14 Jan 1998 | Lancaster | 2 | 1 | Slight |
| Thu 15 Jan 1998 | Bradford | 2 | 1 | Slight |
| Fri 16 Jan 1998 | Leeds | 2 | 5 | Slight |
| Fri 16 Jan 1998 | Leeds | 2 | 1 | Serious |
| Sat 17 Jan 1998 | South Lakeland | 2 | 6 | Serious |
| Sat 17 Jan 1998 | Leeds | 1 | 1 | Slight |
| Mon 19 Jan 1998 | Craven | 4 | 1 | Slight |
| Wed 21 Jan 1998 | Leeds | 3 | 1 | Slight |
| Thu 22 Jan 1998 | Craven | 1 | 1 | Slight |
| Fri 23 Jan 1998 | Leeds | 2 | 1 | Slight |
| Tue 27 Jan 1998 | South Lakeland | 3 | 1 | Slight |
| Wed 28 Jan 1998 | Leeds | 2 | 1 | Slight |
| Wed 28 Jan 1998 | Leeds | 2 | 2 | Serious |
| Thu 29 Jan 1998 | South Lakeland | 2 | 1 | Slight |
| Fri 30 Jan 1998 | Craven | 2 | 1 | Slight |
| Mon 2 Feb 1998 | Craven | 1 | 1 | Slight |
| Tue 3 Feb 1998 | Leeds | 2 | 1 | Slight |
| Fri 6 Feb 1998 | Leeds | 2 | 1 | Slight |
| Fri 6 Feb 1998 | Bradford | 2 | 3 | Slight |
| Fri 6 Feb 1998 | Leeds | 3 | 2 | Slight |
| Sat 7 Feb 1998 | Craven | 1 | 1 | Serious |
| Sun 8 Feb 1998 | Craven | 3 | 3 | Fatal |
| Tue 10 Feb 1998 | South Lakeland | 3 | 1 | Slight |
| Tue 10 Feb 1998 | South Lakeland | 1 | 1 | Slight |
| Wed 11 Feb 1998 | Craven | 3 | 3 | Serious |
| Thu 12 Feb 1998 | Craven | 2 | 1 | Slight |
| Fri 13 Feb 1998 | Leeds | 1 | 2 | Slight |
| Sat 14 Feb 1998 | South Lakeland | 1 | 1 | Serious |
| Sun 15 Feb 1998 | Leeds | 2 | 1 | Slight |
| Sun 15 Feb 1998 | Leeds | 1 | 2 | Slight |
| Thu 19 Feb 1998 | Bradford | 2 | 1 | Slight |
| Sun 22 Feb 1998 | Leeds | 2 | 1 | Slight |
| Mon 23 Feb 1998 | Leeds | 2 | 1 | Slight |
| Mon 23 Feb 1998 | Leeds | 3 | 3 | Serious |
| Mon 23 Feb 1998 | Leeds | 2 | 2 | Slight |
| Tue 24 Feb 1998 | Bradford | 2 | 1 | Slight |
| Wed 25 Feb 1998 | South Lakeland | 1 | 1 | Slight |
| Fri 27 Feb 1998 | Leeds | 3 | 1 | Slight |
| Sun 1 Mar 1998 | Leeds | 2 | 1 | Slight |
| Mon 2 Mar 1998 | Leeds | 2 | 1 | Slight |
| Tue 3 Mar 1998 | Leeds | 2 | 1 | Slight |
| Tue 3 Mar 1998 | South Lakeland | 2 | 1 | Serious |
| Thu 5 Mar 1998 | Craven | 2 | 1 | Slight |
| Sat 7 Mar 1998 | Craven | 1 | 1 | Slight |
| Sat 7 Mar 1998 | Bradford | 2 | 2 | Slight |
| Tue 10 Mar 1998 | Craven | 1 | 1 | Slight |
| Thu 12 Mar 1998 | Bradford | 2 | 1 | Slight |
| Thu 12 Mar 1998 | Craven | 3 | 1 | Slight |
| Sun 22 Mar 1998 | Craven | 2 | 1 | Slight |
| Mon 23 Mar 1998 | Craven | 2 | 1 | Slight |
| Tue 24 Mar 1998 | Rossendale | 2 | 2 | Slight |
| Fri 27 Mar 1998 | Leeds | 2 | 1 | Slight |
| Fri 27 Mar 1998 | Leeds | 2 | 2 | Slight |
| Sun 29 Mar 1998 | Leeds | 2 | 1 | Serious |
| Wed 1 Apr 1998 | Bradford | 2 | 3 | Slight |
| Tue 7 Apr 1998 | Craven | 1 | 1 | Fatal |
| Tue 7 Apr 1998 | Craven | 3 | 2 | Serious |
| Tue 7 Apr 1998 | Leeds | 1 | 1 | Slight |
| Wed 8 Apr 1998 | Leeds | 2 | 1 | Slight |
| Fri 10 Apr 1998 | Bradford | 2 | 1 | Serious |
| Tue 14 Apr 1998 | Leeds | 2 | 2 | Slight |
| Tue 14 Apr 1998 | Leeds | 2 | 1 | Slight |
| Tue 14 Apr 1998 | Craven | 2 | 2 | Slight |
| Wed 15 Apr 1998 | Craven | 4 | 1 | Slight |
| Sun 19 Apr 1998 | Leeds | 2 | 1 | Slight |
| Mon 20 Apr 1998 | Leeds | 2 | 1 | Slight |
| Wed 22 Apr 1998 | South Lakeland | 2 | 1 | Slight |
| Wed 22 Apr 1998 | South Lakeland | 2 | 1 | Slight |
| Thu 23 Apr 1998 | Leeds | 3 | 4 | Slight |
| Fri 24 Apr 1998 | Leeds | 2 | 1 | Slight |
| Fri 24 Apr 1998 | Leeds | 1 | 1 | Serious |
| Fri 24 Apr 1998 | Craven | 2 | 1 | Slight |
| Mon 27 Apr 1998 | Leeds | 3 | 1 | Slight |
| Tue 28 Apr 1998 | Craven | 3 | 1 | Slight |
| Thu 30 Apr 1998 | Leeds | 2 | 1 | Slight |
| Fri 1 May 1998 | Craven | 3 | 2 | Serious |
| Mon 4 May 1998 | Craven | 2 | 1 | Serious |
| Mon 4 May 1998 | Bradford | 2 | 2 | Slight |
| Tue 5 May 1998 | Leeds | 1 | 1 | Slight |
| Fri 8 May 1998 | Craven | 1 | 1 | Serious |
| Mon 11 May 1998 | Lancaster | 1 | 1 | Slight |
| Wed 13 May 1998 | Leeds | 2 | 2 | Slight |
| Thu 14 May 1998 | Leeds | 2 | 1 | Slight |
| Sun 17 May 1998 | Leeds | 4 | 2 | Slight |
| Sun 17 May 1998 | Leeds | 3 | 2 | Slight |
| Sun 17 May 1998 | Leeds | 2 | 3 | Slight |
| Tue 19 May 1998 | Craven | 4 | 1 | Slight |
| Tue 19 May 1998 | Leeds | 2 | 1 | Slight |
| Wed 20 May 1998 | Leeds | 2 | 1 | Slight |
| Thu 21 May 1998 | Bradford | 2 | 1 | Slight |
| Fri 22 May 1998 | Bradford | 2 | 2 | Slight |
| Fri 22 May 1998 | Bradford | 1 | 5 | Slight |
| Sat 23 May 1998 | Bradford | 2 | 1 | Slight |
| Tue 26 May 1998 | South Lakeland | 1 | 1 | Slight |
| Tue 26 May 1998 | South Lakeland | 2 | 1 | Slight |
| Tue 26 May 1998 | South Lakeland | 2 | 1 | Slight |
| Tue 26 May 1998 | Bradford | 2 | 1 | Slight |
| Fri 29 May 1998 | Craven | 3 | 1 | Slight |
| Sat 30 May 1998 | Leeds | 2 | 1 | Slight |
| Sun 31 May 1998 | Bradford | 2 | 1 | Slight |
| Tue 2 Jun 1998 | Leeds | 2 | 1 | Slight |
| Wed 3 Jun 1998 | Craven | 2 | 2 | Fatal |
| Fri 5 Jun 1998 | Bradford | 1 | 1 | Serious |
| Sat 6 Jun 1998 | Bradford | 1 | 1 | Serious |
| Sat 6 Jun 1998 | South Lakeland | 2 | 1 | Slight |
| Sun 7 Jun 1998 | Craven | 2 | 1 | Serious |
| Mon 8 Jun 1998 | Leeds | 2 | 1 | Slight |
| Mon 8 Jun 1998 | Craven | 3 | 2 | Slight |
| Wed 10 Jun 1998 | South Lakeland | 2 | 1 | Slight |
| Thu 11 Jun 1998 | South Lakeland | 2 | 1 | Slight |
| Fri 12 Jun 1998 | Bradford | 1 | 1 | Slight |
| Sat 13 Jun 1998 | Leeds | 2 | 1 | Slight |
| Sat 13 Jun 1998 | Craven | 8 | 2 | Serious |
| Sun 14 Jun 1998 | Craven | 2 | 2 | Slight |
| Tue 16 Jun 1998 | Leeds | 2 | 1 | Slight |
| Wed 17 Jun 1998 | Craven | 2 | 1 | Slight |
| Thu 18 Jun 1998 | Leeds | 2 | 1 | Slight |
| Sat 20 Jun 1998 | Craven | 2 | 4 | Serious |
| Sat 20 Jun 1998 | South Lakeland | 1 | 2 | Slight |
| Sun 21 Jun 1998 | Leeds | 2 | 1 | Slight |
| Sun 21 Jun 1998 | Craven | 2 | 1 | Slight |
| Wed 24 Jun 1998 | Craven | 2 | 2 | Serious |
| Wed 24 Jun 1998 | Craven | 2 | 1 | Slight |
| Fri 26 Jun 1998 | Craven | 2 | 3 | Slight |
| Fri 26 Jun 1998 | Craven | 2 | 1 | Slight |
| Sun 28 Jun 1998 | Leeds | 2 | 2 | Slight |
| Tue 30 Jun 1998 | South Lakeland | 2 | 1 | Slight |
| Tue 30 Jun 1998 | South Lakeland | 2 | 1 | Slight |
| Wed 1 Jul 1998 | Craven | 1 | 1 | Slight |
| Sun 5 Jul 1998 | South Lakeland | 2 | 1 | Slight |
| Mon 6 Jul 1998 | Craven | 3 | 1 | Slight |
| Tue 7 Jul 1998 | Craven | 3 | 7 | Fatal |
| Tue 7 Jul 1998 | Leeds | 2 | 4 | Serious |
| Sat 11 Jul 1998 | Craven | 2 | 1 | Slight |
| Sat 11 Jul 1998 | Bradford | 2 | 3 | Slight |
| Mon 13 Jul 1998 | South Lakeland | 1 | 1 | Slight |
| Mon 13 Jul 1998 | Leeds | 2 | 2 | Slight |
| Sun 19 Jul 1998 | Leeds | 2 | 2 | Slight |
| Sun 19 Jul 1998 | Craven | 2 | 2 | Slight |
| Sun 19 Jul 1998 | Craven | 2 | 1 | Slight |
| Sun 19 Jul 1998 | South Lakeland | 2 | 1 | Slight |
| Sun 19 Jul 1998 | South Lakeland | 3 | 3 | Serious |
| Tue 21 Jul 1998 | Leeds | 1 | 1 | Slight |
| Wed 22 Jul 1998 | Leeds | 2 | 1 | Slight |
| Wed 22 Jul 1998 | Leeds | 2 | 2 | Slight |
| Fri 24 Jul 1998 | Leeds | 2 | 1 | Slight |
| Sat 25 Jul 1998 | Craven | 3 | 1 | Slight |
| Sun 26 Jul 1998 | Bradford | 1 | 1 | Slight |
| Sun 26 Jul 1998 | Craven | 1 | 1 | Slight |
| Tue 28 Jul 1998 | Craven | 2 | 1 | Slight |
| Tue 28 Jul 1998 | Craven | 1 | 1 | Slight |
| Wed 29 Jul 1998 | South Lakeland | 3 | 1 | Slight |
| Thu 30 Jul 1998 | Craven | 6 | 1 | Slight |
| Thu 30 Jul 1998 | Craven | 2 | 2 | Slight |
| Sun 2 Aug 1998 | South Lakeland | 2 | 1 | Slight |
| Mon 3 Aug 1998 | Leeds | 2 | 1 | Slight |
| Mon 3 Aug 1998 | Leeds | 3 | 2 | Slight |
| Thu 6 Aug 1998 | Bradford | 1 | 1 | Slight |
| Thu 6 Aug 1998 | Leeds | 1 | 1 | Slight |
| Thu 6 Aug 1998 | Leeds | 3 | 3 | Slight |
| Fri 7 Aug 1998 | Leeds | 2 | 1 | Slight |
| Sat 8 Aug 1998 | Craven | 2 | 1 | Slight |
| Sun 9 Aug 1998 | Bradford | 1 | 2 | Slight |
| Mon 10 Aug 1998 | Craven | 2 | 2 | Slight |
| Mon 10 Aug 1998 | Craven | 2 | 1 | Slight |
| Wed 12 Aug 1998 | Craven | 4 | 1 | Slight |
| Sat 15 Aug 1998 | Leeds | 2 | 1 | Slight |
| Sun 16 Aug 1998 | Leeds | 3 | 6 | Slight |
| Wed 19 Aug 1998 | Bradford | 2 | 1 | Slight |
| Thu 20 Aug 1998 | Leeds | 2 | 1 | Slight |
| Fri 21 Aug 1998 | Leeds | 1 | 2 | Serious |
| Fri 21 Aug 1998 | Leeds | 2 | 1 | Serious |
| Sat 22 Aug 1998 | Leeds | 2 | 1 | Serious |
| Sat 22 Aug 1998 | Leeds | 3 | 2 | Slight |
| Sun 23 Aug 1998 | Leeds | 2 | 5 | Slight |
| Tue 25 Aug 1998 | Leeds | 2 | 1 | Slight |
| Tue 25 Aug 1998 | South Lakeland | 2 | 2 | Slight |
| Tue 25 Aug 1998 | Craven | 5 | 1 | Slight |
| Thu 27 Aug 1998 | Leeds | 2 | 1 | Slight |
| Fri 28 Aug 1998 | Craven | 1 | 1 | Slight |
| Tue 1 Sep 1998 | Bradford | 1 | 1 | Slight |
| Tue 1 Sep 1998 | Leeds | 2 | 1 | Serious |
| Tue 1 Sep 1998 | Leeds | 2 | 1 | Serious |
| Wed 2 Sep 1998 | Bradford | 3 | 1 | Slight |
| Thu 3 Sep 1998 | South Lakeland | 2 | 1 | Slight |
| Sun 6 Sep 1998 | Leeds | 2 | 1 | Slight |
| Wed 9 Sep 1998 | Leeds | 2 | 4 | Slight |
| Wed 9 Sep 1998 | Leeds | 2 | 4 | Slight |
| Thu 10 Sep 1998 | Leeds | 2 | 1 | Serious |
| Thu 10 Sep 1998 | South Lakeland | 2 | 1 | Slight |
| Thu 10 Sep 1998 | South Lakeland | 2 | 1 | Slight |
| Thu 10 Sep 1998 | Leeds | 2 | 1 | Slight |
| Fri 11 Sep 1998 | Leeds | 2 | 3 | Slight |
| Fri 11 Sep 1998 | Leeds | 4 | 1 | Slight |
| Fri 11 Sep 1998 | Leeds | 2 | 1 | Slight |
| Fri 11 Sep 1998 | Craven | 1 | 1 | Slight |
| Sat 12 Sep 1998 | Craven | 1 | 1 | Slight |
| Sat 12 Sep 1998 | Craven | 3 | 1 | Slight |
| Sat 12 Sep 1998 | Leeds | 2 | 3 | Slight |
| Sat 12 Sep 1998 | South Lakeland | 1 | 1 | Slight |
| Mon 14 Sep 1998 | South Lakeland | 2 | 1 | Slight |
| Mon 14 Sep 1998 | Leeds | 2 | 1 | Slight |
| Mon 14 Sep 1998 | Craven | 1 | 1 | Slight |
| Tue 15 Sep 1998 | Leeds | 2 | 2 | Slight |
| Wed 16 Sep 1998 | Leeds | 2 | 2 | Slight |
| Fri 18 Sep 1998 | Craven | 3 | 2 | Slight |
| Sat 19 Sep 1998 | Craven | 3 | 1 | Slight |
| Sat 19 Sep 1998 | Bradford | 2 | 2 | Slight |
| Sun 20 Sep 1998 | South Lakeland | 3 | 4 | Slight |
| Sun 20 Sep 1998 | Bradford | 2 | 2 | Slight |
| Sun 20 Sep 1998 | Craven | 2 | 1 | Slight |
| Mon 21 Sep 1998 | Craven | 2 | 3 | Slight |
| Tue 22 Sep 1998 | South Lakeland | 2 | 2 | Serious |
| Wed 23 Sep 1998 | Craven | 2 | 3 | Slight |
| Wed 23 Sep 1998 | Leeds | 2 | 3 | Slight |
| Thu 24 Sep 1998 | Leeds | 1 | 1 | Slight |
| Fri 25 Sep 1998 | Craven | 2 | 1 | Slight |
| Fri 25 Sep 1998 | Leeds | 1 | 2 | Slight |
| Sun 27 Sep 1998 | Bradford | 2 | 3 | Slight |
| Mon 28 Sep 1998 | Leeds | 2 | 1 | Slight |
| Mon 28 Sep 1998 | Craven | 1 | 1 | Serious |
| Tue 29 Sep 1998 | South Lakeland | 2 | 1 | Slight |
| Tue 29 Sep 1998 | Craven | 1 | 2 | Slight |
| Wed 30 Sep 1998 | Leeds | 3 | 3 | Slight |
| Thu 1 Oct 1998 | Craven | 5 | 1 | Slight |
| Thu 1 Oct 1998 | Craven | 2 | 1 | Slight |
| Thu 1 Oct 1998 | Leeds | 2 | 1 | Slight |
| Thu 1 Oct 1998 | Craven | 1 | 1 | Slight |
| Sun 4 Oct 1998 | Craven | 2 | 1 | Slight |
| Mon 5 Oct 1998 | South Lakeland | 1 | 1 | Serious |
| Wed 7 Oct 1998 | Leeds | 1 | 1 | Serious |
| Fri 9 Oct 1998 | Leeds | 2 | 1 | Slight |
| Fri 9 Oct 1998 | Craven | 3 | 1 | Slight |
| Sat 10 Oct 1998 | Craven | 2 | 1 | Slight |
| Sat 10 Oct 1998 | Craven | 2 | 1 | Slight |
| Sun 11 Oct 1998 | Craven | 2 | 1 | Slight |
| Mon 12 Oct 1998 | Leeds | 2 | 1 | Slight |
| Mon 12 Oct 1998 | Leeds | 2 | 1 | Slight |
| Mon 12 Oct 1998 | Leeds | 2 | 1 | Slight |
| Mon 12 Oct 1998 | Leeds | 2 | 1 | Slight |
| Tue 13 Oct 1998 | South Lakeland | 1 | 1 | Slight |
| Tue 13 Oct 1998 | Leeds | 2 | 1 | Slight |
| Tue 13 Oct 1998 | Craven | 2 | 5 | Slight |
| Tue 13 Oct 1998 | Leeds | 2 | 2 | Slight |
| Fri 16 Oct 1998 | South Lakeland | 2 | 4 | Slight |
| Fri 16 Oct 1998 | South Lakeland | 3 | 1 | Slight |
| Sat 17 Oct 1998 | Craven | 3 | 1 | Slight |
| Sun 18 Oct 1998 | Craven | 2 | 2 | Slight |
| Mon 19 Oct 1998 | Craven | 1 | 1 | Slight |
| Thu 22 Oct 1998 | Leeds | 1 | 1 | Slight |
| Fri 23 Oct 1998 | Leeds | 2 | 1 | Slight |
| Mon 26 Oct 1998 | Leeds | 1 | 1 | Slight |
| Wed 28 Oct 1998 | South Lakeland | 3 | 1 | Slight |
| Fri 30 Oct 1998 | Craven | 1 | 2 | Slight |
| Mon 2 Nov 1998 | South Lakeland | 2 | 1 | Slight |
| Tue 3 Nov 1998 | Leeds | 3 | 1 | Slight |
| Tue 3 Nov 1998 | Leeds | 2 | 2 | Slight |
| Sun 8 Nov 1998 | Leeds | 3 | 3 | Slight |
| Tue 10 Nov 1998 | Craven | 2 | 1 | Slight |
| Tue 10 Nov 1998 | Leeds | 2 | 2 | Slight |
| Wed 11 Nov 1998 | Leeds | 1 | 1 | Serious |
| Fri 13 Nov 1998 | Craven | 2 | 1 | Slight |
| Sat 14 Nov 1998 | Craven | 2 | 4 | Slight |
| Sat 14 Nov 1998 | Lancaster | 2 | 2 | Slight |
| Sun 15 Nov 1998 | Leeds | 2 | 1 | Slight |
| Mon 16 Nov 1998 | Craven | 3 | 3 | Serious |
| Mon 16 Nov 1998 | Craven | 3 | 2 | Slight |
| Thu 19 Nov 1998 | Leeds | 1 | 1 | Slight |
| Sat 21 Nov 1998 | Lancaster | 3 | 1 | Slight |
| Sat 21 Nov 1998 | Bradford | 2 | 2 | Slight |
| Sun 22 Nov 1998 | Craven | 3 | 3 | Serious |
| Wed 25 Nov 1998 | Craven | 2 | 1 | Serious |
| Thu 26 Nov 1998 | Bradford | 2 | 1 | Slight |
| Fri 27 Nov 1998 | Leeds | 2 | 1 | Slight |
| Fri 27 Nov 1998 | Leeds | 2 | 1 | Slight |
| Sun 29 Nov 1998 | Craven | 2 | 1 | Slight |
| Mon 30 Nov 1998 | Bradford | 2 | 2 | Slight |
| Tue 1 Dec 1998 | Leeds | 2 | 1 | Fatal |
| Wed 2 Dec 1998 | Bradford | 2 | 1 | Slight |
| Fri 4 Dec 1998 | Craven | 2 | 1 | Slight |
| Sun 6 Dec 1998 | Leeds | 2 | 3 | Slight |
| Tue 8 Dec 1998 | South Lakeland | 2 | 1 | Slight |
| Wed 9 Dec 1998 | Bradford | 1 | 1 | Slight |
| Wed 9 Dec 1998 | Bradford | 1 | 1 | Slight |
| Wed 9 Dec 1998 | South Lakeland | 2 | 1 | Slight |
| Thu 10 Dec 1998 | Leeds | 2 | 1 | Slight |
| Fri 11 Dec 1998 | Leeds | 2 | 2 | Slight |
| Sat 12 Dec 1998 | Craven | 5 | 1 | Slight |
| Sun 13 Dec 1998 | Craven | 2 | 4 | Serious |
| Tue 15 Dec 1998 | Leeds | 2 | 1 | Slight |
| Tue 15 Dec 1998 | South Lakeland | 1 | 1 | Slight |
| Thu 17 Dec 1998 | Craven | 1 | 1 | Slight |
| Fri 18 Dec 1998 | Craven | 4 | 2 | Slight |
| Sun 20 Dec 1998 | Leeds | 1 | 1 | Slight |
| Wed 23 Dec 1998 | Leeds | 2 | 1 | Slight |
| Sun 27 Dec 1998 | Leeds | 2 | 2 | Serious |
| Thu 31 Dec 1998 | Leeds | 2 | 1 | Slight |