Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 4 Jan 1999 | Wycombe | 2 | 1 | Serious |
| Mon 18 Jan 1999 | East Hampshire | 2 | 2 | Slight |
| Tue 26 Jan 1999 | Wycombe | 2 | 1 | Slight |
| Fri 5 Feb 1999 | Watford | 2 | 1 | Slight |
| Tue 16 Feb 1999 | Watford | 1 | 2 | Slight |
| Fri 19 Feb 1999 | Huntingdonshire | 1 | 1 | Serious |
| Mon 22 Feb 1999 | Watford | 2 | 1 | Serious |
| Tue 23 Feb 1999 | Wycombe | 2 | 1 | Slight |
| Fri 12 Mar 1999 | Wycombe | 1 | 1 | Slight |
| Sat 13 Mar 1999 | Watford | 1 | 1 | Slight |
| Fri 19 Mar 1999 | Watford | 2 | 2 | Slight |
| Sat 27 Mar 1999 | Watford | 2 | 1 | Slight |
| Sun 28 Mar 1999 | Watford | 2 | 2 | Slight |
| Tue 30 Mar 1999 | Watford | 2 | 2 | Slight |
| Fri 16 Apr 1999 | Wycombe | 2 | 3 | Slight |
| Tue 27 Apr 1999 | Wycombe | 3 | 1 | Slight |
| Fri 30 Apr 1999 | Watford | 1 | 1 | Slight |
| Thu 13 May 1999 | Watford | 2 | 1 | Slight |
| Mon 24 May 1999 | East Hampshire | 2 | 2 | Slight |
| Mon 24 May 1999 | Wycombe | 2 | 3 | Slight |
| Mon 24 May 1999 | Wycombe | 2 | 3 | Slight |
| Mon 24 May 1999 | Wycombe | 2 | 1 | Slight |
| Tue 8 Jun 1999 | Wycombe | 1 | 1 | Slight |
| Fri 18 Jun 1999 | Watford | 3 | 1 | Slight |
| Sat 26 Jun 1999 | Tewkesbury | 2 | 2 | Slight |
| Mon 9 Aug 1999 | Wycombe | 2 | 2 | Slight |
| Fri 13 Aug 1999 | East Hampshire | 2 | 1 | Slight |
| Fri 13 Aug 1999 | Wycombe | 3 | 1 | Slight |
| Sun 15 Aug 1999 | Wycombe | 1 | 1 | Slight |
| Thu 19 Aug 1999 | Wycombe | 2 | 2 | Slight |
| Tue 24 Aug 1999 | East Hampshire | 2 | 1 | Slight |
| Sat 28 Aug 1999 | Rushcliffe | 1 | 1 | Slight |
| Mon 13 Sep 1999 | Watford | 1 | 1 | Slight |
| Sun 3 Oct 1999 | West Dorset | 3 | 4 | Slight |
| Wed 6 Oct 1999 | Watford | 2 | 1 | Serious |
| Mon 11 Oct 1999 | Newark and Sherwood | 2 | 1 | Slight |
| Tue 12 Oct 1999 | Watford | 2 | 1 | Slight |
| Sat 30 Oct 1999 | Wycombe | 1 | 1 | Serious |
| Fri 12 Nov 1999 | Wycombe | 3 | 1 | Slight |
| Mon 22 Nov 1999 | Wycombe | 2 | 1 | Slight |
| Mon 29 Nov 1999 | Watford | 2 | 3 | Slight |
| Tue 30 Nov 1999 | Watford | 2 | 3 | Slight |