Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 2 Jan 1999 | Caerphilly | 2 | 2 | Slight |
| Fri 8 Jan 1999 | Caerphilly | 2 | 3 | Slight |
| Sat 9 Jan 1999 | Caerphilly | 2 | 1 | Slight |
| Mon 11 Jan 1999 | Caerphilly | 3 | 1 | Slight |
| Mon 18 Jan 1999 | Caerphilly | 1 | 1 | Slight |
| Wed 20 Jan 1999 | Newport | 2 | 1 | Serious |
| Wed 20 Jan 1999 | Blaenau Gwent | 2 | 1 | Slight |
| Fri 22 Jan 1999 | Blaenau Gwent | 2 | 2 | Slight |
| Mon 25 Jan 1999 | Newport | 2 | 1 | Slight |
| Tue 26 Jan 1999 | Caerphilly | 1 | 1 | Slight |
| Fri 29 Jan 1999 | Blaenau Gwent | 2 | 1 | Slight |
| Wed 3 Feb 1999 | Blaenau Gwent | 1 | 1 | Slight |
| Thu 4 Feb 1999 | Caerphilly | 2 | 1 | Slight |
| Fri 12 Feb 1999 | Newport | 3 | 1 | Slight |
| Mon 22 Feb 1999 | Newport | 2 | 1 | Slight |
| Tue 9 Mar 1999 | Blaenau Gwent | 2 | 1 | Slight |
| Sat 20 Mar 1999 | Blaenau Gwent | 2 | 2 | Slight |
| Thu 25 Mar 1999 | Caerphilly | 2 | 1 | Slight |
| Mon 29 Mar 1999 | Caerphilly | 2 | 2 | Slight |
| Thu 8 Apr 1999 | Blaenau Gwent | 1 | 1 | Serious |
| Sat 10 Apr 1999 | Newport | 2 | 1 | Slight |
| Thu 15 Apr 1999 | Newport | 2 | 1 | Slight |
| Fri 16 Apr 1999 | Blaenau Gwent | 1 | 5 | Fatal |
| Fri 16 Apr 1999 | Newport | 2 | 1 | Slight |
| Wed 28 Apr 1999 | Newport | 2 | 1 | Slight |
| Wed 28 Apr 1999 | Caerphilly | 2 | 1 | Slight |
| Sat 8 May 1999 | Newport | 1 | 1 | Slight |
| Sat 8 May 1999 | Blaenau Gwent | 1 | 1 | Slight |
| Mon 31 May 1999 | Newport | 2 | 1 | Slight |
| Mon 7 Jun 1999 | Caerphilly | 2 | 2 | Slight |
| Sat 12 Jun 1999 | Caerphilly | 2 | 1 | Slight |
| Mon 21 Jun 1999 | Caerphilly | 2 | 1 | Slight |
| Fri 16 Jul 1999 | Newport | 2 | 1 | Slight |
| Sun 18 Jul 1999 | Caerphilly | 2 | 2 | Slight |
| Mon 2 Aug 1999 | Newport | 2 | 1 | Slight |
| Mon 2 Aug 1999 | Newport | 2 | 1 | Slight |
| Wed 4 Aug 1999 | Newport | 1 | 5 | Slight |
| Sun 8 Aug 1999 | Newport | 1 | 1 | Slight |
| Mon 9 Aug 1999 | Caerphilly | 2 | 1 | Slight |
| Tue 17 Aug 1999 | Newport | 2 | 1 | Slight |
| Wed 18 Aug 1999 | Newport | 1 | 1 | Serious |
| Mon 13 Sep 1999 | Newport | 2 | 2 | Slight |
| Wed 15 Sep 1999 | Newport | 2 | 1 | Slight |
| Sat 25 Sep 1999 | Newport | 1 | 2 | Slight |
| Mon 4 Oct 1999 | Newport | 1 | 1 | Slight |
| Mon 4 Oct 1999 | Newport | 1 | 1 | Slight |
| Sun 10 Oct 1999 | Newport | 1 | 1 | Serious |
| Thu 14 Oct 1999 | Blaenau Gwent | 2 | 1 | Slight |
| Mon 25 Oct 1999 | Blaenau Gwent | 2 | 2 | Slight |
| Thu 11 Nov 1999 | Blaenau Gwent | 2 | 3 | Slight |
| Fri 12 Nov 1999 | Caerphilly | 2 | 2 | Serious |
| Fri 12 Nov 1999 | Caerphilly | 3 | 4 | Slight |
| Sat 13 Nov 1999 | Newport | 2 | 1 | Slight |
| Fri 26 Nov 1999 | Newport | 2 | 2 | Slight |
| Thu 2 Dec 1999 | Blaenau Gwent | 2 | 2 | Slight |
| Thu 2 Dec 1999 | Caerphilly | 2 | 2 | Slight |
| Sun 5 Dec 1999 | Blaenau Gwent | 1 | 2 | Slight |
| Sun 19 Dec 1999 | Caerphilly | 2 | 4 | Slight |
| Mon 27 Dec 1999 | Blaenau Gwent | 3 | 1 | Serious |
| Mon 27 Dec 1999 | Caerphilly | 2 | 2 | Slight |