Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 8 Jan 1999 | St. Albans | 1 | 2 | Serious |
| Mon 11 Jan 1999 | St. Albans | 1 | 1 | Serious |
| Thu 21 Jan 1999 | St. Albans | 2 | 1 | Slight |
| Sat 23 Jan 1999 | Hertsmere | 5 | 2 | Slight |
| Fri 29 Jan 1999 | St. Albans | 1 | 1 | Slight |
| Fri 5 Feb 1999 | St. Albans | 1 | 1 | Slight |
| Sun 14 Feb 1999 | Barnet | 2 | 1 | Slight |
| Sun 14 Feb 1999 | St. Albans | 2 | 1 | Slight |
| Mon 15 Feb 1999 | St. Albans | 2 | 4 | Serious |
| Fri 19 Feb 1999 | St. Albans | 2 | 1 | Slight |
| Fri 19 Feb 1999 | St. Albans | 2 | 2 | Slight |
| Tue 23 Feb 1999 | Barnet | 2 | 1 | Slight |
| Wed 24 Feb 1999 | Barnet | 2 | 1 | Slight |
| Thu 25 Feb 1999 | St. Albans | 2 | 1 | Slight |
| Fri 26 Feb 1999 | St. Albans | 2 | 2 | Slight |
| Fri 26 Feb 1999 | Hertsmere | 2 | 1 | Slight |
| Fri 26 Feb 1999 | Hertsmere | 2 | 1 | Slight |
| Fri 26 Feb 1999 | St. Albans | 3 | 1 | Slight |
| Mon 1 Mar 1999 | St. Albans | 2 | 1 | Serious |
| Wed 3 Mar 1999 | St. Albans | 2 | 2 | Slight |
| Sat 6 Mar 1999 | St. Albans | 2 | 3 | Slight |
| Fri 12 Mar 1999 | St. Albans | 2 | 3 | Slight |
| Tue 16 Mar 1999 | Luton | 2 | 1 | Slight |
| Tue 16 Mar 1999 | St. Albans | 2 | 1 | Slight |
| Thu 18 Mar 1999 | Barnet | 2 | 2 | Slight |
| Thu 18 Mar 1999 | South Bedfordshire | 2 | 1 | Slight |
| Tue 30 Mar 1999 | Barnet | 1 | 1 | Serious |
| Wed 31 Mar 1999 | St. Albans | 2 | 1 | Slight |
| Wed 31 Mar 1999 | St. Albans | 4 | 4 | Slight |
| Fri 2 Apr 1999 | St. Albans | 2 | 1 | Slight |
| Mon 12 Apr 1999 | St. Albans | 2 | 2 | Slight |
| Fri 16 Apr 1999 | St. Albans | 3 | 2 | Slight |
| Sat 17 Apr 1999 | St. Albans | 2 | 1 | Serious |
| Mon 26 Apr 1999 | Hertsmere | 2 | 1 | Slight |
| Wed 5 May 1999 | St. Albans | 2 | 1 | Serious |
| Thu 6 May 1999 | St. Albans | 2 | 1 | Slight |
| Sat 8 May 1999 | St. Albans | 2 | 2 | Slight |
| Sat 8 May 1999 | St. Albans | 2 | 2 | Slight |
| Tue 11 May 1999 | South Bedfordshire | 2 | 1 | Slight |
| Mon 17 May 1999 | St. Albans | 2 | 1 | Slight |
| Wed 19 May 1999 | St. Albans | 2 | 1 | Slight |
| Sat 22 May 1999 | Luton | 2 | 1 | Slight |
| Sat 22 May 1999 | St. Albans | 2 | 1 | Slight |
| Sun 23 May 1999 | South Bedfordshire | 1 | 4 | Serious |
| Wed 26 May 1999 | St. Albans | 1 | 1 | Slight |
| Thu 27 May 1999 | Luton | 2 | 1 | Slight |
| Fri 28 May 1999 | Barnet | 3 | 1 | Serious |
| Sun 30 May 1999 | St. Albans | 2 | 1 | Slight |
| Tue 1 Jun 1999 | St. Albans | 2 | 2 | Slight |
| Fri 4 Jun 1999 | Hertsmere | 2 | 3 | Slight |
| Wed 9 Jun 1999 | St. Albans | 2 | 1 | Slight |
| Fri 11 Jun 1999 | St. Albans | 1 | 2 | Slight |
| Mon 14 Jun 1999 | St. Albans | 2 | 1 | Slight |
| Tue 15 Jun 1999 | Luton | 2 | 1 | Slight |
| Thu 17 Jun 1999 | St. Albans | 2 | 1 | Slight |
| Sat 19 Jun 1999 | St. Albans | 2 | 1 | Slight |
| Sun 20 Jun 1999 | Luton | 2 | 3 | Slight |
| Tue 22 Jun 1999 | Hertsmere | 2 | 1 | Slight |
| Wed 23 Jun 1999 | St. Albans | 1 | 1 | Slight |
| Fri 25 Jun 1999 | South Bedfordshire | 2 | 1 | Slight |
| Tue 29 Jun 1999 | Hertsmere | 2 | 1 | Slight |
| Tue 29 Jun 1999 | St. Albans | 2 | 2 | Serious |
| Sat 3 Jul 1999 | South Bedfordshire | 3 | 2 | Slight |
| Mon 5 Jul 1999 | St. Albans | 2 | 1 | Slight |
| Tue 6 Jul 1999 | St. Albans | 1 | 1 | Slight |
| Tue 13 Jul 1999 | St. Albans | 2 | 1 | Slight |
| Fri 16 Jul 1999 | St. Albans | 2 | 1 | Slight |
| Mon 19 Jul 1999 | St. Albans | 2 | 2 | Slight |
| Sat 24 Jul 1999 | St. Albans | 3 | 1 | Slight |
| Thu 5 Aug 1999 | St. Albans | 2 | 1 | Slight |
| Sat 7 Aug 1999 | St. Albans | 2 | 1 | Slight |
| Sat 7 Aug 1999 | St. Albans | 2 | 2 | Slight |
| Tue 10 Aug 1999 | St. Albans | 2 | 2 | Slight |
| Wed 11 Aug 1999 | St. Albans | 2 | 3 | Slight |
| Fri 13 Aug 1999 | Luton | 2 | 1 | Slight |
| Sat 14 Aug 1999 | St. Albans | 1 | 1 | Slight |
| Sun 15 Aug 1999 | St. Albans | 2 | 2 | Slight |
| Mon 16 Aug 1999 | Luton | 1 | 1 | Serious |
| Tue 17 Aug 1999 | St. Albans | 2 | 2 | Slight |
| Tue 17 Aug 1999 | Barnet | 1 | 1 | Slight |
| Tue 17 Aug 1999 | Luton | 2 | 1 | Slight |
| Tue 17 Aug 1999 | Luton | 2 | 1 | Slight |
| Tue 17 Aug 1999 | Hertsmere | 2 | 2 | Slight |
| Wed 18 Aug 1999 | St. Albans | 2 | 3 | Slight |
| Thu 26 Aug 1999 | St. Albans | 1 | 1 | Slight |
| Thu 26 Aug 1999 | St. Albans | 2 | 1 | Slight |
| Wed 1 Sep 1999 | Barnet | 1 | 1 | Slight |
| Wed 1 Sep 1999 | Barnet | 1 | 1 | Slight |
| Thu 2 Sep 1999 | Hertsmere | 1 | 1 | Serious |
| Thu 2 Sep 1999 | Hertsmere | 2 | 1 | Serious |
| Mon 6 Sep 1999 | St. Albans | 2 | 1 | Slight |
| Sat 11 Sep 1999 | St. Albans | 2 | 1 | Slight |
| Fri 17 Sep 1999 | South Kesteven | 3 | 1 | Slight |
| Fri 17 Sep 1999 | St. Albans | 1 | 1 | Serious |
| Thu 23 Sep 1999 | St. Albans | 2 | 1 | Slight |
| Thu 23 Sep 1999 | Hertsmere | 2 | 1 | Slight |
| Fri 24 Sep 1999 | St. Albans | 2 | 1 | Slight |
| Sat 25 Sep 1999 | Hertsmere | 2 | 1 | Slight |
| Sat 25 Sep 1999 | Hertsmere | 2 | 1 | Slight |
| Wed 29 Sep 1999 | St. Albans | 2 | 1 | Slight |
| Wed 6 Oct 1999 | St. Albans | 1 | 1 | Fatal |
| Fri 8 Oct 1999 | St. Albans | 1 | 2 | Fatal |
| Thu 14 Oct 1999 | Hertsmere | 2 | 1 | Serious |
| Thu 14 Oct 1999 | Hertsmere | 2 | 1 | Slight |
| Sat 16 Oct 1999 | St. Albans | 2 | 1 | Slight |
| Sat 16 Oct 1999 | St. Albans | 2 | 1 | Serious |
| Tue 19 Oct 1999 | St. Albans | 1 | 1 | Slight |
| Sat 23 Oct 1999 | St. Albans | 2 | 1 | Slight |
| Sat 23 Oct 1999 | South Bedfordshire | 2 | 1 | Slight |
| Sun 24 Oct 1999 | St. Albans | 1 | 1 | Serious |
| Thu 4 Nov 1999 | St. Albans | 2 | 1 | Slight |
| Thu 4 Nov 1999 | St. Albans | 2 | 1 | Slight |
| Fri 12 Nov 1999 | St. Albans | 1 | 1 | Slight |
| Fri 12 Nov 1999 | St. Albans | 1 | 1 | Slight |
| Sun 14 Nov 1999 | St. Albans | 2 | 1 | Slight |
| Tue 16 Nov 1999 | St. Albans | 2 | 1 | Slight |
| Tue 16 Nov 1999 | St. Albans | 1 | 3 | Slight |
| Wed 17 Nov 1999 | St. Albans | 2 | 1 | Slight |
| Fri 19 Nov 1999 | St. Albans | 4 | 2 | Slight |
| Fri 19 Nov 1999 | St. Albans | 2 | 4 | Serious |
| Sat 20 Nov 1999 | St. Albans | 2 | 1 | Slight |
| Sat 20 Nov 1999 | St. Albans | 2 | 2 | Slight |
| Sat 20 Nov 1999 | St. Albans | 2 | 3 | Slight |
| Fri 26 Nov 1999 | St. Albans | 3 | 2 | Slight |
| Sun 5 Dec 1999 | St. Albans | 1 | 1 | Slight |
| Thu 9 Dec 1999 | St. Albans | 2 | 5 | Serious |
| Mon 13 Dec 1999 | St. Albans | 2 | 1 | Slight |
| Mon 13 Dec 1999 | St. Albans | 2 | 1 | Slight |
| Fri 17 Dec 1999 | Hertsmere | 2 | 1 | Slight |
| Fri 17 Dec 1999 | Hertsmere | 2 | 1 | Slight |
| Tue 21 Dec 1999 | Luton | 2 | 1 | Slight |
| Wed 22 Dec 1999 | St. Albans | 2 | 1 | Slight |
| Fri 24 Dec 1999 | St. Albans | 2 | 1 | Slight |