Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 9 Jan 1999 | Chiltern | 2 | 1 | Slight |
| Sun 17 Jan 1999 | Chiltern | 1 | 1 | Slight |
| Wed 20 Jan 1999 | Chiltern | 1 | 1 | Slight |
| Wed 20 Jan 1999 | Chiltern | 3 | 1 | Slight |
| Thu 21 Jan 1999 | Chiltern | 3 | 2 | Slight |
| Thu 21 Jan 1999 | Chiltern | 1 | 1 | Slight |
| Sun 7 Feb 1999 | Chiltern | 2 | 1 | Slight |
| Wed 10 Feb 1999 | Chiltern | 1 | 1 | Slight |
| Tue 16 Feb 1999 | Chiltern | 1 | 1 | Slight |
| Sat 20 Feb 1999 | Chiltern | 2 | 2 | Slight |
| Thu 25 Feb 1999 | Chiltern | 2 | 1 | Slight |
| Sun 7 Mar 1999 | Chiltern | 2 | 3 | Slight |
| Thu 25 Mar 1999 | Chiltern | 2 | 1 | Slight |
| Thu 8 Apr 1999 | Dacorum | 1 | 1 | Fatal |
| Sat 24 Apr 1999 | Chiltern | 2 | 1 | Slight |
| Mon 10 May 1999 | Chiltern | 2 | 1 | Slight |
| Tue 11 May 1999 | Chiltern | 2 | 1 | Slight |
| Wed 19 May 1999 | Chiltern | 2 | 1 | Slight |
| Thu 20 May 1999 | Chiltern | 2 | 1 | Serious |
| Sat 22 May 1999 | Chiltern | 2 | 1 | Slight |
| Fri 28 May 1999 | Chiltern | 3 | 2 | Slight |
| Mon 31 May 1999 | Chiltern | 2 | 3 | Slight |
| Tue 1 Jun 1999 | Chiltern | 3 | 1 | Slight |
| Mon 7 Jun 1999 | Chiltern | 1 | 1 | Serious |
| Tue 6 Jul 1999 | Chiltern | 2 | 2 | Slight |
| Fri 9 Jul 1999 | Chiltern | 3 | 1 | Slight |
| Sat 10 Jul 1999 | Chiltern | 1 | 1 | Slight |
| Tue 13 Jul 1999 | Chiltern | 2 | 1 | Slight |
| Tue 27 Jul 1999 | Chiltern | 2 | 1 | Slight |
| Wed 4 Aug 1999 | Chiltern | 3 | 2 | Slight |
| Fri 6 Aug 1999 | Chiltern | 3 | 1 | Slight |
| Mon 9 Aug 1999 | Chiltern | 1 | 1 | Serious |
| Thu 12 Aug 1999 | Chiltern | 2 | 1 | Slight |
| Mon 20 Sep 1999 | Dacorum | 2 | 2 | Serious |
| Tue 28 Sep 1999 | Chiltern | 2 | 1 | Slight |
| Thu 7 Oct 1999 | Chiltern | 2 | 1 | Slight |
| Wed 20 Oct 1999 | Chiltern | 2 | 1 | Slight |
| Thu 21 Oct 1999 | Chiltern | 2 | 2 | Slight |
| Wed 10 Nov 1999 | Dacorum | 2 | 3 | Slight |
| Mon 15 Nov 1999 | Chiltern | 1 | 1 | Slight |
| Mon 15 Nov 1999 | Chiltern | 1 | 1 | Slight |
| Sun 28 Nov 1999 | Dacorum | 1 | 1 | Slight |
| Wed 1 Dec 1999 | Chiltern | 2 | 1 | Slight |
| Tue 7 Dec 1999 | Chiltern | 1 | 1 | Slight |