Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 7 Jan 1999 | Leeds | 3 | 2 | Slight |
| Fri 8 Jan 1999 | Wakefield | 1 | 1 | Slight |
| Fri 15 Jan 1999 | Wakefield | 1 | 3 | Slight |
| Tue 19 Jan 1999 | Wakefield | 2 | 2 | Slight |
| Sat 30 Jan 1999 | Wakefield | 2 | 5 | Slight |
| Wed 17 Feb 1999 | Wakefield | 2 | 1 | Slight |
| Sun 21 Feb 1999 | Wakefield | 2 | 1 | Slight |
| Tue 23 Feb 1999 | Wakefield | 1 | 1 | Slight |
| Mon 1 Mar 1999 | Leeds | 1 | 2 | Serious |
| Wed 3 Mar 1999 | Wakefield | 1 | 1 | Slight |
| Thu 4 Mar 1999 | Wakefield | 2 | 3 | Slight |
| Fri 12 Mar 1999 | Wakefield | 2 | 2 | Slight |
| Sat 13 Mar 1999 | Wakefield | 2 | 2 | Slight |
| Thu 18 Mar 1999 | Wakefield | 1 | 1 | Slight |
| Sat 20 Mar 1999 | Wakefield | 1 | 1 | Serious |
| Mon 29 Mar 1999 | Wakefield | 1 | 2 | Serious |
| Sun 4 Apr 1999 | Leeds | 2 | 3 | Slight |
| Thu 8 Apr 1999 | Wakefield | 2 | 2 | Slight |
| Tue 20 Apr 1999 | Wakefield | 2 | 2 | Slight |
| Thu 22 Apr 1999 | Doncaster | 2 | 1 | Slight |
| Thu 22 Apr 1999 | Wakefield | 2 | 1 | Slight |
| Mon 26 Apr 1999 | Wakefield | 2 | 1 | Slight |
| Tue 11 May 1999 | Wakefield | 2 | 1 | Slight |
| Tue 11 May 1999 | Wakefield | 2 | 2 | Slight |
| Wed 19 May 1999 | Wakefield | 2 | 2 | Slight |
| Sun 23 May 1999 | Wakefield | 1 | 1 | Slight |
| Fri 28 May 1999 | Wakefield | 2 | 1 | Slight |
| Sun 6 Jun 1999 | Wakefield | 2 | 2 | Slight |
| Tue 8 Jun 1999 | Leeds | 1 | 1 | Slight |
| Thu 10 Jun 1999 | Leeds | 2 | 2 | Slight |
| Fri 25 Jun 1999 | Wakefield | 2 | 1 | Slight |
| Fri 2 Jul 1999 | Wakefield | 2 | 2 | Slight |
| Fri 2 Jul 1999 | Wakefield | 2 | 1 | Slight |
| Sat 10 Jul 1999 | Leeds | 1 | 1 | Slight |
| Wed 14 Jul 1999 | Wakefield | 3 | 3 | Slight |
| Mon 19 Jul 1999 | Wakefield | 1 | 1 | Slight |
| Mon 19 Jul 1999 | Wakefield | 3 | 3 | Slight |
| Sat 24 Jul 1999 | Wakefield | 2 | 1 | Slight |
| Tue 27 Jul 1999 | Wakefield | 2 | 3 | Slight |
| Sat 31 Jul 1999 | Wakefield | 2 | 2 | Slight |
| Sat 31 Jul 1999 | Wakefield | 2 | 7 | Slight |
| Thu 5 Aug 1999 | Doncaster | 2 | 1 | Slight |
| Mon 9 Aug 1999 | Wakefield | 2 | 1 | Slight |
| Mon 16 Aug 1999 | Wakefield | 2 | 1 | Slight |
| Sun 22 Aug 1999 | Wakefield | 2 | 1 | Slight |
| Sun 22 Aug 1999 | Wakefield | 2 | 1 | Slight |
| Mon 23 Aug 1999 | Wakefield | 2 | 1 | Slight |
| Sun 5 Sep 1999 | Wakefield | 2 | 1 | Slight |
| Sat 11 Sep 1999 | Wakefield | 2 | 2 | Slight |
| Sat 11 Sep 1999 | Leeds | 2 | 3 | Slight |
| Tue 14 Sep 1999 | Leeds | 1 | 1 | Serious |
| Thu 16 Sep 1999 | Wakefield | 2 | 1 | Slight |
| Wed 22 Sep 1999 | Wakefield | 2 | 2 | Slight |
| Thu 23 Sep 1999 | Wakefield | 3 | 1 | Slight |
| Fri 24 Sep 1999 | Wakefield | 2 | 3 | Slight |
| Sat 25 Sep 1999 | Wakefield | 2 | 3 | Slight |
| Wed 29 Sep 1999 | Wakefield | 3 | 3 | Slight |
| Wed 29 Sep 1999 | Wakefield | 2 | 1 | Slight |
| Fri 1 Oct 1999 | Wakefield | 2 | 2 | Slight |
| Fri 1 Oct 1999 | Wakefield | 2 | 2 | Slight |
| Wed 6 Oct 1999 | Wakefield | 1 | 1 | Slight |
| Sun 17 Oct 1999 | Wakefield | 2 | 1 | Slight |
| Fri 22 Oct 1999 | Wakefield | 2 | 4 | Slight |
| Tue 26 Oct 1999 | Wakefield | 2 | 1 | Slight |
| Thu 28 Oct 1999 | Doncaster | 2 | 3 | Slight |
| Tue 2 Nov 1999 | Wakefield | 2 | 1 | Slight |
| Tue 2 Nov 1999 | Wakefield | 2 | 1 | Slight |
| Sat 13 Nov 1999 | Wakefield | 2 | 1 | Slight |
| Tue 23 Nov 1999 | Wakefield | 2 | 1 | Slight |
| Fri 26 Nov 1999 | Wakefield | 2 | 2 | Serious |
| Sun 5 Dec 1999 | Leeds | 1 | 2 | Slight |
| Tue 7 Dec 1999 | Wakefield | 2 | 2 | Slight |
| Thu 9 Dec 1999 | Wakefield | 2 | 1 | Slight |
| Fri 10 Dec 1999 | Wakefield | 2 | 1 | Slight |
| Sat 11 Dec 1999 | Wakefield | 2 | 1 | Serious |
| Wed 22 Dec 1999 | Wakefield | 2 | 3 | Slight |
| Thu 23 Dec 1999 | Leeds | 2 | 1 | Serious |