Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 2 Jan 2003 | Merthyr Tydfil | 1 | 1 | Slight |
| Mon 6 Jan 2003 | Caerphilly | 1 | 1 | Slight |
| Wed 15 Jan 2003 | Torfaen | 3 | 2 | Slight |
| Thu 16 Jan 2003 | Caerphilly | 2 | 2 | Slight |
| Sat 25 Jan 2003 | Caerphilly | 2 | 1 | Slight |
| Thu 20 Feb 2003 | Monmouthshire | 2 | 1 | Slight |
| Fri 28 Feb 2003 | Torfaen | 2 | 2 | Slight |
| Tue 11 Mar 2003 | Torfaen | 2 | 1 | Serious |
| Thu 13 Mar 2003 | Torfaen | 2 | 1 | Slight |
| Fri 14 Mar 2003 | Monmouthshire | 1 | 1 | Serious |
| Sat 22 Mar 2003 | Caerphilly | 2 | 2 | Slight |
| Mon 31 Mar 2003 | Monmouthshire | 1 | 1 | Slight |
| Fri 4 Apr 2003 | Caerphilly | 3 | 1 | Slight |
| Fri 18 Apr 2003 | Caerphilly | 2 | 1 | Slight |
| Mon 21 Apr 2003 | Monmouthshire | 1 | 1 | Serious |
| Mon 21 Apr 2003 | Caerphilly | 2 | 3 | Slight |
| Tue 22 Apr 2003 | Caerphilly | 2 | 1 | Slight |
| Fri 25 Apr 2003 | Torfaen | 2 | 1 | Slight |
| Thu 1 May 2003 | Caerphilly | 2 | 1 | Slight |
| Thu 1 May 2003 | Caerphilly | 2 | 1 | Slight |
| Sun 4 May 2003 | Caerphilly | 2 | 1 | Slight |
| Thu 15 May 2003 | Merthyr Tydfil | 3 | 1 | Slight |
| Sat 17 May 2003 | Caerphilly | 2 | 1 | Slight |
| Sun 18 May 2003 | Merthyr Tydfil | 1 | 1 | Slight |
| Mon 19 May 2003 | Torfaen | 2 | 1 | Slight |
| Fri 23 May 2003 | Caerphilly | 2 | 1 | Slight |
| Sat 24 May 2003 | Torfaen | 1 | 1 | Slight |
| Sun 25 May 2003 | Torfaen | 2 | 1 | Slight |
| Thu 5 Jun 2003 | Caerphilly | 2 | 1 | Slight |
| Fri 11 Jul 2003 | Monmouthshire | 2 | 1 | Serious |
| Fri 18 Jul 2003 | Caerphilly | 2 | 1 | Slight |
| Wed 23 Jul 2003 | Merthyr Tydfil | 2 | 2 | Slight |
| Thu 24 Jul 2003 | Caerphilly | 3 | 1 | Slight |
| Sun 10 Aug 2003 | Caerphilly | 2 | 1 | Serious |
| Thu 14 Aug 2003 | Monmouthshire | 1 | 1 | Serious |
| Thu 21 Aug 2003 | Caerphilly | 4 | 4 | Slight |
| Sun 24 Aug 2003 | Caerphilly | 2 | 1 | Slight |
| Fri 29 Aug 2003 | Caerphilly | 1 | 1 | Slight |
| Tue 9 Sep 2003 | Monmouthshire | 2 | 3 | Slight |
| Fri 12 Sep 2003 | Monmouthshire | 1 | 1 | Serious |
| Wed 17 Sep 2003 | Caerphilly | 3 | 1 | Slight |
| Wed 24 Sep 2003 | Torfaen | 2 | 1 | Slight |
| Thu 2 Oct 2003 | Caerphilly | 2 | 1 | Slight |
| Tue 14 Oct 2003 | Caerphilly | 2 | 1 | Slight |
| Thu 16 Oct 2003 | Monmouthshire | 1 | 1 | Slight |
| Thu 23 Oct 2003 | Monmouthshire | 2 | 1 | Slight |
| Sun 26 Oct 2003 | Caerphilly | 2 | 1 | Slight |
| Tue 28 Oct 2003 | Monmouthshire | 2 | 1 | Slight |
| Thu 30 Oct 2003 | Caerphilly | 2 | 1 | Slight |
| Thu 13 Nov 2003 | Torfaen | 2 | 1 | Slight |
| Fri 21 Nov 2003 | Caerphilly | 2 | 2 | Slight |
| Wed 17 Dec 2003 | Caerphilly | 2 | 1 | Slight |