Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 4 Jan 2003 | The Vale of Glamorgan | 3 | 1 | Slight |
| Wed 15 Jan 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Thu 16 Jan 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Wed 22 Jan 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Mon 27 Jan 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Wed 26 Feb 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Sun 2 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Fri 21 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Wed 26 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Serious |
| Thu 27 Mar 2003 | Bridgend | 2 | 1 | Slight |
| Sat 29 Mar 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Thu 3 Apr 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Tue 15 Apr 2003 | Bridgend | 2 | 2 | Slight |
| Wed 23 Apr 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Tue 29 Apr 2003 | Bridgend | 2 | 1 | Slight |
| Thu 1 May 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Sun 4 May 2003 | The Vale of Glamorgan | 1 | 1 | Serious |
| Mon 5 May 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Wed 21 May 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Thu 22 May 2003 | The Vale of Glamorgan | 1 | 3 | Slight |
| Sat 24 May 2003 | The Vale of Glamorgan | 1 | 2 | Slight |
| Mon 7 Jul 2003 | The Vale of Glamorgan | 1 | 3 | Slight |
| Fri 18 Jul 2003 | The Vale of Glamorgan | 1 | 1 | Slight |
| Sun 17 Aug 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Mon 1 Sep 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Thu 2 Oct 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Sun 19 Oct 2003 | Bridgend | 2 | 3 | Serious |
| Wed 22 Oct 2003 | The Vale of Glamorgan | 2 | 1 | Slight |
| Thu 23 Oct 2003 | The Vale of Glamorgan | 3 | 1 | Slight |
| Tue 18 Nov 2003 | The Vale of Glamorgan | 1 | 1 | Slight |
| Wed 26 Nov 2003 | The Vale of Glamorgan | 2 | 2 | Serious |
| Tue 2 Dec 2003 | The Vale of Glamorgan | 1 | 1 | Fatal |
| Tue 9 Dec 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Mon 22 Dec 2003 | The Vale of Glamorgan | 2 | 2 | Slight |
| Fri 26 Dec 2003 | The Vale of Glamorgan | 1 | 1 | Fatal |