Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 2 Jan 1998 | Neath Port Talbot | 2 | 3 | Slight |
| Tue 6 Jan 1998 | Rhondda, Cynon, Taff | 2 | 2 | Serious |
| Tue 6 Jan 1998 | Rhondda, Cynon, Taff | 1 | 1 | Slight |
| Thu 8 Jan 1998 | Malvern Hills | 2 | 2 | Slight |
| Mon 12 Jan 1998 | Malvern Hills | 2 | 1 | Slight |
| Thu 15 Jan 1998 | Blaenau Gwent | 2 | 3 | Fatal |
| Fri 16 Jan 1998 | Monmouthshire | 2 | 3 | Serious |
| Tue 20 Jan 1998 | Rhondda, Cynon, Taff | 2 | 2 | Slight |
| Wed 28 Jan 1998 | Merthyr Tydfil | 2 | 1 | Slight |
| Tue 3 Feb 1998 | Neath Port Talbot | 1 | 1 | Slight |
| Fri 6 Feb 1998 | Blaenau Gwent | 2 | 2 | Slight |
| Sun 8 Feb 1998 | Neath Port Talbot | 1 | 1 | Serious |
| Mon 9 Feb 1998 | Neath Port Talbot | 4 | 4 | Slight |
| Tue 17 Feb 1998 | Merthyr Tydfil | 1 | 2 | Serious |
| Wed 18 Feb 1998 | Blaenau Gwent | 2 | 2 | Slight |
| Sun 22 Feb 1998 | Monmouthshire | 1 | 5 | Fatal |
| Mon 2 Mar 1998 | Blaenau Gwent | 2 | 1 | Slight |
| Tue 3 Mar 1998 | Caerphilly | 1 | 1 | Slight |
| Tue 3 Mar 1998 | Blaenau Gwent | 2 | 2 | Slight |
| Tue 3 Mar 1998 | Monmouthshire | 1 | 3 | Slight |
| Tue 3 Mar 1998 | Merthyr Tydfil | 2 | 4 | Fatal |
| Thu 12 Mar 1998 | Neath Port Talbot | 2 | 2 | Slight |
| Wed 18 Mar 1998 | Caerphilly | 1 | 1 | Slight |
| Tue 31 Mar 1998 | Monmouthshire | 1 | 1 | Fatal |
| Sat 4 Apr 1998 | Herefordshire, County of | 3 | 2 | Slight |
| Sat 4 Apr 1998 | Merthyr Tydfil | 2 | 2 | Slight |
| Wed 8 Apr 1998 | Neath Port Talbot | 3 | 3 | Slight |
| Thu 9 Apr 1998 | Caerphilly | 3 | 4 | Slight |
| Thu 9 Apr 1998 | Neath Port Talbot | 2 | 1 | Slight |
| Sat 11 Apr 1998 | Merthyr Tydfil | 1 | 1 | Slight |
| Thu 16 Apr 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Sun 19 Apr 1998 | Herefordshire, County of | 1 | 1 | Slight |
| Tue 21 Apr 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Tue 21 Apr 1998 | Herefordshire, County of | 2 | 1 | Serious |
| Wed 22 Apr 1998 | Caerphilly | 3 | 6 | Slight |
| Thu 23 Apr 1998 | Monmouthshire | 2 | 2 | Slight |
| Fri 1 May 1998 | Monmouthshire | 1 | 1 | Serious |
| Sat 2 May 1998 | Neath Port Talbot | 3 | 1 | Slight |
| Tue 5 May 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Thu 7 May 1998 | Neath Port Talbot | 1 | 1 | Slight |
| Fri 8 May 1998 | Herefordshire, County of | 1 | 3 | Serious |
| Sun 10 May 1998 | Monmouthshire | 1 | 1 | Serious |
| Tue 12 May 1998 | Rhondda, Cynon, Taff | 2 | 3 | Slight |
| Tue 12 May 1998 | Neath Port Talbot | 2 | 1 | Slight |
| Mon 18 May 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Thu 21 May 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Sun 24 May 1998 | Herefordshire, County of | 1 | 1 | Fatal |
| Mon 25 May 1998 | Monmouthshire | 2 | 1 | Serious |
| Fri 29 May 1998 | Rhondda, Cynon, Taff | 2 | 3 | Slight |
| Mon 1 Jun 1998 | Neath Port Talbot | 2 | 2 | Slight |
| Tue 2 Jun 1998 | Neath Port Talbot | 1 | 1 | Slight |
| Thu 4 Jun 1998 | Merthyr Tydfil | 1 | 1 | Slight |
| Tue 9 Jun 1998 | Monmouthshire | 1 | 1 | Slight |
| Thu 11 Jun 1998 | Merthyr Tydfil | 2 | 2 | Serious |
| Thu 11 Jun 1998 | Herefordshire, County of | 3 | 1 | Slight |
| Thu 11 Jun 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Sun 21 Jun 1998 | Herefordshire, County of | 2 | 3 | Slight |
| Wed 24 Jun 1998 | Herefordshire, County of | 2 | 2 | Serious |
| Wed 1 Jul 1998 | Herefordshire, County of | 3 | 1 | Slight |
| Thu 2 Jul 1998 | Monmouthshire | 1 | 1 | Slight |
| Fri 3 Jul 1998 | Neath Port Talbot | 2 | 1 | Slight |
| Sun 12 Jul 1998 | Herefordshire, County of | 1 | 1 | Slight |
| Wed 15 Jul 1998 | Herefordshire, County of | 3 | 2 | Slight |
| Sun 19 Jul 1998 | Rhondda, Cynon, Taff | 1 | 2 | Slight |
| Sat 1 Aug 1998 | Monmouthshire | 2 | 2 | Serious |
| Mon 3 Aug 1998 | Merthyr Tydfil | 2 | 1 | Slight |
| Tue 4 Aug 1998 | Monmouthshire | 4 | 2 | Slight |
| Fri 7 Aug 1998 | Monmouthshire | 4 | 1 | Slight |
| Fri 7 Aug 1998 | Herefordshire, County of | 2 | 5 | Fatal |
| Tue 11 Aug 1998 | Neath Port Talbot | 1 | 2 | Serious |
| Wed 12 Aug 1998 | Blaenau Gwent | 1 | 1 | Slight |
| Fri 14 Aug 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Mon 17 Aug 1998 | Neath Port Talbot | 2 | 1 | Slight |
| Mon 17 Aug 1998 | Herefordshire, County of | 4 | 6 | Slight |
| Mon 24 Aug 1998 | Neath Port Talbot | 3 | 1 | Slight |
| Thu 27 Aug 1998 | Herefordshire, County of | 1 | 1 | Slight |
| Sat 5 Sep 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Fri 11 Sep 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Sat 12 Sep 1998 | Monmouthshire | 2 | 4 | Serious |
| Thu 17 Sep 1998 | Herefordshire, County of | 1 | 1 | Serious |
| Sun 20 Sep 1998 | Herefordshire, County of | 2 | 1 | Serious |
| Thu 24 Sep 1998 | Neath Port Talbot | 1 | 2 | Slight |
| Fri 25 Sep 1998 | Monmouthshire | 2 | 1 | Slight |
| Sun 27 Sep 1998 | Herefordshire, County of | 1 | 1 | Slight |
| Sun 27 Sep 1998 | Monmouthshire | 2 | 1 | Slight |
| Fri 2 Oct 1998 | Herefordshire, County of | 1 | 1 | Slight |
| Sat 3 Oct 1998 | Herefordshire, County of | 2 | 1 | Serious |
| Mon 5 Oct 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Tue 6 Oct 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Thu 8 Oct 1998 | Monmouthshire | 4 | 1 | Slight |
| Fri 9 Oct 1998 | Herefordshire, County of | 2 | 2 | Slight |
| Wed 14 Oct 1998 | Herefordshire, County of | 1 | 1 | Slight |
| Thu 15 Oct 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Sun 18 Oct 1998 | Monmouthshire | 1 | 2 | Slight |
| Sun 18 Oct 1998 | Herefordshire, County of | 3 | 2 | Slight |
| Mon 19 Oct 1998 | Neath Port Talbot | 2 | 1 | Slight |
| Thu 22 Oct 1998 | Herefordshire, County of | 1 | 1 | Slight |
| Thu 22 Oct 1998 | Herefordshire, County of | 1 | 1 | Slight |
| Fri 23 Oct 1998 | Herefordshire, County of | 1 | 1 | Serious |
| Mon 26 Oct 1998 | Merthyr Tydfil | 1 | 1 | Serious |
| Tue 27 Oct 1998 | Neath Port Talbot | 1 | 2 | Slight |
| Wed 28 Oct 1998 | Neath Port Talbot | 1 | 1 | Slight |
| Fri 30 Oct 1998 | Monmouthshire | 2 | 1 | Slight |
| Tue 3 Nov 1998 | Herefordshire, County of | 2 | 2 | Slight |
| Tue 3 Nov 1998 | Neath Port Talbot | 4 | 1 | Slight |
| Wed 11 Nov 1998 | Caerphilly | 2 | 1 | Slight |
| Fri 13 Nov 1998 | Herefordshire, County of | 2 | 2 | Slight |
| Mon 16 Nov 1998 | Herefordshire, County of | 1 | 1 | Fatal |
| Tue 24 Nov 1998 | Monmouthshire | 2 | 1 | Slight |
| Wed 25 Nov 1998 | Neath Port Talbot | 2 | 1 | Slight |
| Sun 29 Nov 1998 | Neath Port Talbot | 1 | 1 | Slight |
| Mon 30 Nov 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Tue 1 Dec 1998 | Merthyr Tydfil | 2 | 2 | Fatal |
| Wed 2 Dec 1998 | Neath Port Talbot | 2 | 1 | Slight |
| Fri 4 Dec 1998 | Herefordshire, County of | 1 | 1 | Serious |
| Fri 4 Dec 1998 | Herefordshire, County of | 2 | 2 | Slight |
| Fri 4 Dec 1998 | Herefordshire, County of | 2 | 2 | Slight |
| Fri 11 Dec 1998 | Herefordshire, County of | 2 | 1 | Serious |
| Sat 12 Dec 1998 | Herefordshire, County of | 1 | 1 | Serious |
| Sun 13 Dec 1998 | Merthyr Tydfil | 2 | 3 | Fatal |
| Sun 13 Dec 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Tue 15 Dec 1998 | Monmouthshire | 2 | 2 | Slight |
| Sun 20 Dec 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Mon 21 Dec 1998 | Monmouthshire | 2 | 1 | Slight |
| Tue 22 Dec 1998 | Rhondda, Cynon, Taff | 3 | 1 | Slight |
| Wed 23 Dec 1998 | Neath Port Talbot | 1 | 1 | Slight |
| Wed 23 Dec 1998 | Caerphilly | 2 | 1 | Slight |
| Wed 23 Dec 1998 | Herefordshire, County of | 2 | 1 | Slight |
| Thu 24 Dec 1998 | Monmouthshire | 3 | 4 | Slight |
| Sun 27 Dec 1998 | Herefordshire, County of | 2 | 3 | Slight |