Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 8 Jan 1998 | Bridgend | 2 | 2 | Slight |
| Mon 19 Jan 1998 | Rhondda, Cynon, Taff | 2 | 1 | Slight |
| Wed 21 Jan 1998 | Bridgend | 2 | 3 | Slight |
| Fri 30 Jan 1998 | Rhondda, Cynon, Taff | 2 | 1 | Slight |
| Mon 2 Feb 1998 | Rhondda, Cynon, Taff | 1 | 1 | Slight |
| Mon 2 Feb 1998 | Bridgend | 1 | 1 | Slight |
| Tue 3 Feb 1998 | Bridgend | 2 | 2 | Slight |
| Wed 4 Feb 1998 | Bridgend | 2 | 1 | Slight |
| Wed 4 Feb 1998 | Bridgend | 2 | 1 | Slight |
| Thu 19 Feb 1998 | Rhondda, Cynon, Taff | 1 | 1 | Serious |
| Fri 20 Mar 1998 | Bridgend | 2 | 1 | Slight |
| Thu 2 Apr 1998 | Rhondda, Cynon, Taff | 2 | 1 | Slight |
| Fri 3 Apr 1998 | Bridgend | 2 | 1 | Slight |
| Mon 6 Apr 1998 | Bridgend | 2 | 2 | Slight |
| Sat 11 Apr 1998 | Bridgend | 1 | 1 | Slight |
| Tue 26 May 1998 | Bridgend | 3 | 2 | Slight |
| Thu 11 Jun 1998 | Rhondda, Cynon, Taff | 1 | 2 | Slight |
| Sun 14 Jun 1998 | Bridgend | 1 | 3 | Slight |
| Sun 14 Jun 1998 | Rhondda, Cynon, Taff | 1 | 1 | Serious |
| Sun 12 Jul 1998 | Bridgend | 2 | 1 | Slight |
| Tue 14 Jul 1998 | Bridgend | 2 | 1 | Slight |
| Tue 14 Jul 1998 | Bridgend | 2 | 1 | Slight |
| Sun 26 Jul 1998 | Bridgend | 2 | 4 | Slight |
| Mon 27 Jul 1998 | Bridgend | 2 | 1 | Slight |
| Thu 30 Jul 1998 | Bridgend | 1 | 1 | Slight |
| Tue 8 Sep 1998 | Bridgend | 3 | 1 | Slight |
| Thu 22 Oct 1998 | Bridgend | 2 | 2 | Slight |
| Fri 6 Nov 1998 | Bridgend | 2 | 2 | Slight |
| Sun 8 Nov 1998 | Rhondda, Cynon, Taff | 2 | 2 | Slight |
| Wed 11 Nov 1998 | Bridgend | 2 | 1 | Slight |
| Fri 13 Nov 1998 | Rhondda, Cynon, Taff | 2 | 1 | Slight |
| Wed 9 Dec 1998 | Bridgend | 2 | 1 | Slight |
| Mon 14 Dec 1998 | Bridgend | 2 | 1 | Slight |
| Wed 23 Dec 1998 | Bridgend | 1 | 1 | Slight |