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