Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 6 Jan 1998 | East Hertfordshire | 2 | 1 | Slight |
| Sun 18 Jan 1998 | Broxbourne | 2 | 1 | Slight |
| Fri 13 Feb 1998 | East Hertfordshire | 1 | 1 | Slight |
| Tue 10 Mar 1998 | East Hertfordshire | 1 | 1 | Slight |
| Thu 12 Mar 1998 | Broxbourne | 1 | 1 | Slight |
| Thu 26 Mar 1998 | East Hertfordshire | 1 | 1 | Fatal |
| Wed 1 Apr 1998 | East Hertfordshire | 2 | 1 | Slight |
| Fri 3 Apr 1998 | East Hertfordshire | 2 | 1 | Slight |
| Thu 23 Apr 1998 | Broxbourne | 1 | 1 | Slight |
| Thu 30 Apr 1998 | Broxbourne | 3 | 1 | Slight |
| Mon 8 Jun 1998 | Broxbourne | 2 | 1 | Slight |
| Thu 11 Jun 1998 | Broxbourne | 2 | 2 | Slight |
| Thu 18 Jun 1998 | Broxbourne | 3 | 2 | Slight |
| Mon 22 Jun 1998 | East Hertfordshire | 3 | 3 | Slight |
| Mon 22 Jun 1998 | East Hertfordshire | 2 | 1 | Slight |
| Tue 30 Jun 1998 | Broxbourne | 1 | 1 | Serious |
| Wed 1 Jul 1998 | East Hertfordshire | 2 | 1 | Slight |
| Fri 3 Jul 1998 | East Hertfordshire | 1 | 1 | Slight |
| Sun 5 Jul 1998 | East Hertfordshire | 2 | 2 | Slight |
| Sun 12 Jul 1998 | East Hertfordshire | 2 | 2 | Slight |
| Thu 16 Jul 1998 | Broxbourne | 2 | 1 | Slight |
| Fri 17 Jul 1998 | East Hertfordshire | 2 | 1 | Slight |
| Mon 20 Jul 1998 | East Hertfordshire | 2 | 1 | Serious |
| Wed 29 Jul 1998 | East Hertfordshire | 2 | 1 | Slight |
| Mon 3 Aug 1998 | Broxbourne | 2 | 1 | Slight |
| Sun 9 Aug 1998 | Broxbourne | 1 | 1 | Serious |
| Fri 14 Aug 1998 | Broxbourne | 2 | 1 | Slight |
| Sat 5 Sep 1998 | East Hertfordshire | 2 | 1 | Slight |
| Fri 11 Sep 1998 | Broxbourne | 2 | 2 | Slight |
| Fri 18 Sep 1998 | Broxbourne | 3 | 1 | Slight |
| Sat 19 Sep 1998 | Broxbourne | 3 | 1 | Slight |
| Wed 23 Sep 1998 | Broxbourne | 1 | 1 | Slight |
| Sun 4 Oct 1998 | East Hertfordshire | 2 | 1 | Slight |
| Mon 5 Oct 1998 | East Hertfordshire | 2 | 1 | Slight |
| Sun 11 Oct 1998 | Broxbourne | 2 | 1 | Slight |
| Thu 15 Oct 1998 | Broxbourne | 3 | 1 | Slight |
| Wed 21 Oct 1998 | Broxbourne | 2 | 2 | Slight |
| Fri 30 Oct 1998 | East Hertfordshire | 2 | 1 | Serious |
| Sat 7 Nov 1998 | Broxbourne | 2 | 1 | Slight |
| Tue 10 Nov 1998 | Broxbourne | 2 | 2 | Slight |
| Tue 10 Nov 1998 | Broxbourne | 2 | 2 | Slight |
| Thu 19 Nov 1998 | Broxbourne | 2 | 1 | Slight |
| Fri 20 Nov 1998 | Broxbourne | 1 | 1 | Slight |
| Sun 29 Nov 1998 | Broxbourne | 2 | 1 | Slight |
| Mon 7 Dec 1998 | East Hertfordshire | 2 | 1 | Slight |
| Fri 11 Dec 1998 | Broxbourne | 2 | 1 | Slight |
| Fri 11 Dec 1998 | Broxbourne | 2 | 1 | Slight |
| Sat 12 Dec 1998 | Broxbourne | 2 | 1 | Slight |
| Mon 28 Dec 1998 | Broxbourne | 1 | 1 | Serious |