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