Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 6 Jan 1999 | Uttlesford | 1 | 1 | Slight |
| Sat 6 Feb 1999 | Uttlesford | 2 | 1 | Slight |
| Fri 19 Feb 1999 | East Hertfordshire | 3 | 1 | Slight |
| Tue 9 Mar 1999 | East Hertfordshire | 2 | 1 | Slight |
| Fri 12 Mar 1999 | Uttlesford | 2 | 1 | Slight |
| Mon 29 Mar 1999 | Uttlesford | 1 | 1 | Serious |
| Fri 9 Apr 1999 | Uttlesford | 2 | 1 | Slight |
| Wed 14 Apr 1999 | Uttlesford | 2 | 1 | Slight |
| Sat 17 Apr 1999 | Uttlesford | 3 | 1 | Slight |
| Mon 26 Apr 1999 | East Hertfordshire | 3 | 1 | Slight |
| Thu 6 May 1999 | Uttlesford | 2 | 2 | Slight |
| Wed 12 May 1999 | Uttlesford | 3 | 3 | Slight |
| Mon 17 May 1999 | East Hertfordshire | 2 | 1 | Slight |
| Sat 22 May 1999 | East Hertfordshire | 3 | 2 | Slight |
| Wed 2 Jun 1999 | Uttlesford | 2 | 1 | Slight |
| Fri 4 Jun 1999 | Uttlesford | 2 | 3 | Slight |
| Fri 11 Jun 1999 | Uttlesford | 2 | 1 | Slight |
| Wed 16 Jun 1999 | Uttlesford | 1 | 1 | Slight |
| Tue 29 Jun 1999 | Uttlesford | 2 | 1 | Slight |
| Fri 2 Jul 1999 | East Hertfordshire | 1 | 1 | Slight |
| Sat 3 Jul 1999 | Uttlesford | 2 | 5 | Slight |
| Mon 19 Jul 1999 | East Hertfordshire | 3 | 2 | Slight |
| Sun 25 Jul 1999 | Uttlesford | 2 | 1 | Slight |
| Wed 4 Aug 1999 | East Hertfordshire | 2 | 1 | Slight |
| Thu 5 Aug 1999 | Uttlesford | 1 | 1 | Slight |
| Fri 6 Aug 1999 | East Hertfordshire | 3 | 2 | Slight |
| Fri 20 Aug 1999 | Uttlesford | 2 | 1 | Serious |
| Fri 27 Aug 1999 | Uttlesford | 1 | 1 | Slight |
| Sun 12 Sep 1999 | Uttlesford | 2 | 1 | Slight |
| Sun 19 Sep 1999 | East Hertfordshire | 2 | 1 | Slight |
| Thu 23 Sep 1999 | Uttlesford | 2 | 1 | Slight |
| Wed 29 Sep 1999 | Uttlesford | 2 | 1 | Slight |
| Tue 12 Oct 1999 | Uttlesford | 2 | 1 | Slight |
| Fri 22 Oct 1999 | Uttlesford | 2 | 1 | Slight |
| Wed 27 Oct 1999 | Uttlesford | 2 | 1 | Slight |
| Thu 28 Oct 1999 | Uttlesford | 2 | 1 | Slight |
| Tue 9 Nov 1999 | East Hertfordshire | 2 | 1 | Slight |
| Wed 17 Nov 1999 | Uttlesford | 2 | 1 | Slight |
| Mon 22 Nov 1999 | Uttlesford | 3 | 1 | Slight |
| Fri 26 Nov 1999 | Uttlesford | 1 | 1 | Slight |
| Wed 8 Dec 1999 | Uttlesford | 2 | 1 | Slight |
| Tue 14 Dec 1999 | Uttlesford | 2 | 1 | Slight |
| Wed 22 Dec 1999 | Uttlesford | 3 | 1 | Serious |
| Thu 23 Dec 1999 | East Hertfordshire | 3 | 1 | Slight |