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