Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 2 Jan 1984 | East Hertfordshire | 2 | 3 | Slight |
| Wed 4 Jan 1984 | East Hertfordshire | 2 | 1 | Slight |
| Wed 4 Jan 1984 | East Hertfordshire | 2 | 1 | Slight |
| Mon 16 Jan 1984 | Broxbourne | 1 | 1 | Slight |
| Sun 29 Jan 1984 | Broxbourne | 1 | 1 | Slight |
| Wed 1 Feb 1984 | Broxbourne | 3 | 1 | Slight |
| Fri 10 Feb 1984 | Broxbourne | 2 | 1 | Slight |
| Thu 16 Feb 1984 | Broxbourne | 2 | 4 | Slight |
| Fri 24 Feb 1984 | Broxbourne | 2 | 1 | Slight |
| Wed 7 Mar 1984 | Broxbourne | 3 | 1 | Slight |
| Thu 8 Mar 1984 | Broxbourne | 2 | 1 | Slight |
| Mon 26 Mar 1984 | East Hertfordshire | 3 | 1 | Serious |
| Tue 27 Mar 1984 | Broxbourne | 3 | 1 | Slight |
| Fri 30 Mar 1984 | East Hertfordshire | 1 | 2 | Slight |
| Tue 3 Apr 1984 | Broxbourne | 2 | 2 | Slight |
| Fri 6 Apr 1984 | Broxbourne | 2 | 1 | Serious |
| Tue 10 Apr 1984 | East Hertfordshire | 2 | 1 | Slight |
| Wed 11 Apr 1984 | East Hertfordshire | 2 | 1 | Serious |
| Sat 14 Apr 1984 | Broxbourne | 2 | 1 | Slight |
| Tue 24 Apr 1984 | Broxbourne | 2 | 1 | Slight |
| Fri 11 May 1984 | Broxbourne | 2 | 1 | Slight |
| Thu 24 May 1984 | East Hertfordshire | 1 | 1 | Serious |
| Fri 1 Jun 1984 | East Hertfordshire | 2 | 1 | Serious |
| Mon 4 Jun 1984 | Broxbourne | 2 | 2 | Fatal |
| Mon 18 Jun 1984 | Broxbourne | 1 | 2 | Serious |
| Sat 23 Jun 1984 | East Hertfordshire | 1 | 1 | Slight |
| Sun 1 Jul 1984 | Broxbourne | 2 | 2 | Serious |
| Sun 1 Jul 1984 | Broxbourne | 1 | 1 | Slight |
| Tue 3 Jul 1984 | East Hertfordshire | 1 | 1 | Serious |
| Mon 9 Jul 1984 | Broxbourne | 1 | 1 | Slight |
| Fri 13 Jul 1984 | East Hertfordshire | 2 | 1 | Slight |
| Sun 15 Jul 1984 | East Hertfordshire | 2 | 2 | Slight |
| Tue 17 Jul 1984 | Broxbourne | 2 | 1 | Slight |
| Thu 19 Jul 1984 | Broxbourne | 2 | 1 | Slight |
| Fri 3 Aug 1984 | East Hertfordshire | 2 | 1 | Serious |
| Sun 19 Aug 1984 | Broxbourne | 3 | 2 | Slight |
| Mon 20 Aug 1984 | East Hertfordshire | 1 | 1 | Slight |
| Sat 25 Aug 1984 | Broxbourne | 2 | 1 | Slight |
| Wed 5 Sep 1984 | Broxbourne | 2 | 1 | Slight |
| Wed 26 Sep 1984 | Broxbourne | 2 | 2 | Slight |
| Mon 1 Oct 1984 | Broxbourne | 2 | 1 | Slight |
| Mon 1 Oct 1984 | Broxbourne | 2 | 1 | Serious |
| Mon 1 Oct 1984 | Broxbourne | 1 | 1 | Serious |
| Fri 5 Oct 1984 | East Hertfordshire | 1 | 1 | Slight |
| Mon 8 Oct 1984 | Broxbourne | 2 | 1 | Slight |
| Wed 10 Oct 1984 | Broxbourne | 2 | 2 | Serious |
| Wed 10 Oct 1984 | Broxbourne | 4 | 3 | Slight |
| Fri 12 Oct 1984 | Broxbourne | 1 | 1 | Fatal |
| Fri 12 Oct 1984 | Broxbourne | 1 | 1 | Serious |
| Mon 22 Oct 1984 | Broxbourne | 2 | 1 | Slight |
| Mon 22 Oct 1984 | East Hertfordshire | 2 | 1 | Slight |
| Fri 26 Oct 1984 | Broxbourne | 2 | 1 | Slight |
| Fri 2 Nov 1984 | East Hertfordshire | 2 | 1 | Serious |
| Fri 2 Nov 1984 | Broxbourne | 2 | 1 | Slight |
| Wed 14 Nov 1984 | Broxbourne | 2 | 1 | Slight |
| Sat 17 Nov 1984 | Broxbourne | 1 | 2 | Slight |
| Mon 26 Nov 1984 | Broxbourne | 1 | 1 | Slight |
| Mon 26 Nov 1984 | Broxbourne | 2 | 1 | Slight |
| Sat 1 Dec 1984 | East Hertfordshire | 2 | 1 | Slight |
| Wed 5 Dec 1984 | Broxbourne | 2 | 1 | Slight |
| Wed 5 Dec 1984 | Broxbourne | 2 | 1 | Slight |
| Wed 5 Dec 1984 | East Hertfordshire | 2 | 1 | Slight |
| Fri 7 Dec 1984 | East Hertfordshire | 1 | 2 | Slight |
| Mon 10 Dec 1984 | Broxbourne | 2 | 1 | Slight |
| Wed 19 Dec 1984 | Broxbourne | 1 | 1 | Slight |
| Thu 20 Dec 1984 | Broxbourne | 1 | 1 | Slight |
| Wed 26 Dec 1984 | East Hertfordshire | 1 | 2 | Slight |
| Sat 29 Dec 1984 | Broxbourne | 2 | 1 | Slight |