Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 2 Jan 2003 | Powys | 2 | 2 | Slight |
| Sat 4 Jan 2003 | Neath Port Talbot | 2 | 2 | Slight |
| Thu 9 Jan 2003 | Powys | 1 | 1 | Slight |
| Thu 9 Jan 2003 | Swansea | 2 | 2 | Slight |
| Thu 9 Jan 2003 | Swansea | 2 | 1 | Slight |
| Sat 11 Jan 2003 | Powys | 2 | 1 | Slight |
| Fri 17 Jan 2003 | Swansea | 2 | 2 | Slight |
| Sat 18 Jan 2003 | Swansea | 2 | 2 | Slight |
| Mon 20 Jan 2003 | Swansea | 3 | 2 | Slight |
| Mon 20 Jan 2003 | Swansea | 2 | 4 | Serious |
| Thu 23 Jan 2003 | Swansea | 2 | 3 | Slight |
| Sat 25 Jan 2003 | Swansea | 1 | 1 | Serious |
| Sun 26 Jan 2003 | Swansea | 1 | 2 | Slight |
| Tue 28 Jan 2003 | Swansea | 3 | 1 | Slight |
| Fri 31 Jan 2003 | Swansea | 3 | 4 | Slight |
| Mon 3 Feb 2003 | Swansea | 1 | 1 | Slight |
| Tue 4 Feb 2003 | Swansea | 2 | 1 | Slight |
| Tue 4 Feb 2003 | Swansea | 2 | 2 | Slight |
| Tue 11 Feb 2003 | Swansea | 2 | 1 | Slight |
| Wed 12 Feb 2003 | Swansea | 1 | 1 | Slight |
| Mon 3 Mar 2003 | Swansea | 2 | 1 | Slight |
| Sat 8 Mar 2003 | Swansea | 2 | 1 | Slight |
| Sat 8 Mar 2003 | Swansea | 1 | 1 | Slight |
| Sun 9 Mar 2003 | Neath Port Talbot | 1 | 2 | Slight |
| Tue 11 Mar 2003 | Swansea | 2 | 1 | Slight |
| Wed 12 Mar 2003 | Swansea | 2 | 1 | Slight |
| Fri 14 Mar 2003 | Neath Port Talbot | 2 | 1 | Slight |
| Sat 15 Mar 2003 | Swansea | 1 | 1 | Slight |
| Sun 16 Mar 2003 | Swansea | 2 | 1 | Slight |
| Sun 16 Mar 2003 | Swansea | 2 | 1 | Slight |
| Sun 23 Mar 2003 | Swansea | 2 | 3 | Slight |
| Sun 23 Mar 2003 | Swansea | 2 | 2 | Slight |
| Sun 23 Mar 2003 | Swansea | 2 | 1 | Slight |
| Sun 23 Mar 2003 | Swansea | 2 | 1 | Slight |
| Mon 24 Mar 2003 | Powys | 2 | 1 | Slight |
| Thu 27 Mar 2003 | Powys | 2 | 1 | Slight |
| Mon 31 Mar 2003 | Swansea | 1 | 2 | Slight |
| Thu 3 Apr 2003 | Swansea | 2 | 1 | Serious |
| Tue 8 Apr 2003 | Swansea | 2 | 1 | Slight |
| Thu 10 Apr 2003 | Swansea | 2 | 1 | Slight |
| Sat 12 Apr 2003 | Swansea | 2 | 1 | Slight |
| Sun 13 Apr 2003 | Swansea | 2 | 1 | Slight |
| Sun 13 Apr 2003 | Swansea | 3 | 1 | Slight |
| Fri 18 Apr 2003 | Powys | 2 | 2 | Serious |
| Thu 24 Apr 2003 | Powys | 1 | 1 | Serious |
| Tue 29 Apr 2003 | Swansea | 2 | 1 | Slight |
| Wed 7 May 2003 | Powys | 1 | 3 | Slight |
| Thu 8 May 2003 | Swansea | 2 | 1 | Slight |
| Fri 9 May 2003 | Swansea | 2 | 2 | Slight |
| Fri 16 May 2003 | Powys | 2 | 1 | Serious |
| Sat 17 May 2003 | Swansea | 2 | 2 | Slight |
| Sat 17 May 2003 | Swansea | 2 | 1 | Slight |
| Thu 29 May 2003 | Swansea | 2 | 2 | Slight |
| Fri 30 May 2003 | Powys | 1 | 1 | Slight |
| Wed 4 Jun 2003 | Swansea | 3 | 1 | Slight |
| Fri 6 Jun 2003 | Powys | 1 | 1 | Slight |
| Wed 11 Jun 2003 | Swansea | 3 | 3 | Serious |
| Fri 13 Jun 2003 | Swansea | 2 | 4 | Slight |
| Sat 14 Jun 2003 | Neath Port Talbot | 1 | 1 | Slight |
| Tue 17 Jun 2003 | Powys | 2 | 1 | Slight |
| Sat 21 Jun 2003 | Swansea | 3 | 3 | Slight |
| Thu 26 Jun 2003 | Neath Port Talbot | 2 | 2 | Serious |
| Wed 2 Jul 2003 | Swansea | 2 | 1 | Serious |
| Sat 5 Jul 2003 | Swansea | 3 | 1 | Slight |
| Mon 7 Jul 2003 | Swansea | 2 | 1 | Slight |
| Mon 7 Jul 2003 | Neath Port Talbot | 2 | 2 | Slight |
| Mon 7 Jul 2003 | Swansea | 2 | 1 | Slight |
| Wed 16 Jul 2003 | Swansea | 2 | 1 | Slight |
| Sun 27 Jul 2003 | Neath Port Talbot | 2 | 1 | Serious |
| Tue 29 Jul 2003 | Swansea | 2 | 1 | Slight |
| Thu 7 Aug 2003 | Swansea | 2 | 1 | Slight |
| Sat 9 Aug 2003 | Neath Port Talbot | 2 | 1 | Slight |
| Thu 14 Aug 2003 | Powys | 2 | 4 | Serious |
| Sun 17 Aug 2003 | Swansea | 2 | 4 | Serious |
| Thu 21 Aug 2003 | Powys | 2 | 2 | Serious |
| Sat 23 Aug 2003 | Swansea | 2 | 1 | Slight |
| Wed 27 Aug 2003 | Swansea | 3 | 3 | Slight |
| Tue 2 Sep 2003 | Swansea | 3 | 2 | Slight |
| Fri 5 Sep 2003 | Swansea | 2 | 1 | Slight |
| Sun 7 Sep 2003 | Swansea | 2 | 1 | Slight |
| Sun 7 Sep 2003 | Swansea | 2 | 2 | Slight |
| Thu 11 Sep 2003 | Swansea | 2 | 1 | Slight |
| Fri 12 Sep 2003 | Swansea | 1 | 1 | Slight |
| Sun 14 Sep 2003 | Swansea | 2 | 1 | Slight |
| Sun 14 Sep 2003 | Powys | 1 | 2 | Serious |
| Thu 18 Sep 2003 | Swansea | 2 | 1 | Slight |
| Sun 21 Sep 2003 | Swansea | 1 | 1 | Slight |
| Mon 22 Sep 2003 | Swansea | 4 | 1 | Slight |
| Mon 29 Sep 2003 | Swansea | 4 | 1 | Slight |
| Sat 4 Oct 2003 | Swansea | 2 | 1 | Slight |
| Sun 5 Oct 2003 | Swansea | 1 | 1 | Slight |
| Thu 16 Oct 2003 | Swansea | 2 | 1 | Slight |
| Fri 17 Oct 2003 | Swansea | 2 | 1 | Slight |
| Mon 20 Oct 2003 | Swansea | 3 | 1 | Slight |
| Mon 20 Oct 2003 | Swansea | 2 | 2 | Slight |
| Sun 26 Oct 2003 | Swansea | 3 | 1 | Slight |
| Thu 30 Oct 2003 | Swansea | 2 | 1 | Slight |
| Sat 8 Nov 2003 | Swansea | 2 | 1 | Slight |
| Mon 17 Nov 2003 | Swansea | 2 | 1 | Slight |
| Wed 19 Nov 2003 | Swansea | 3 | 1 | Slight |
| Mon 24 Nov 2003 | Swansea | 2 | 2 | Slight |
| Mon 24 Nov 2003 | Powys | 3 | 3 | Serious |
| Tue 25 Nov 2003 | Swansea | 2 | 2 | Slight |
| Fri 28 Nov 2003 | Swansea | 2 | 1 | Slight |
| Sat 29 Nov 2003 | Swansea | 3 | 1 | Slight |
| Thu 4 Dec 2003 | Swansea | 2 | 1 | Serious |
| Tue 9 Dec 2003 | Swansea | 3 | 1 | Slight |
| Tue 9 Dec 2003 | Swansea | 1 | 1 | Slight |
| Mon 15 Dec 2003 | Swansea | 2 | 2 | Slight |
| Wed 17 Dec 2003 | Swansea | 3 | 1 | Slight |
| Wed 31 Dec 2003 | Swansea | 2 | 1 | Slight |