Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 5 Jan 1980 | East Hertfordshire | 2 | 2 | Serious |
| Mon 7 Jan 1980 | Broxbourne | 2 | 1 | Slight |
| Mon 7 Jan 1980 | Broxbourne | 2 | 1 | Slight |
| Wed 30 Jan 1980 | Broxbourne | 1 | 1 | Serious |
| Wed 30 Jan 1980 | Broxbourne | 1 | 1 | Serious |
| Sat 9 Feb 1980 | East Hertfordshire | 2 | 3 | Slight |
| Wed 13 Feb 1980 | East Hertfordshire | 1 | 1 | Slight |
| Fri 15 Feb 1980 | East Hertfordshire | 4 | 1 | Serious |
| Thu 28 Feb 1980 | Broxbourne | 2 | 1 | Slight |
| Thu 28 Feb 1980 | Broxbourne | 2 | 1 | Slight |
| Thu 20 Mar 1980 | Broxbourne | 1 | 1 | Slight |
| Thu 20 Mar 1980 | Broxbourne | 1 | 1 | Slight |
| Sun 30 Mar 1980 | Broxbourne | 2 | 2 | Serious |
| Sun 30 Mar 1980 | Broxbourne | 2 | 2 | Serious |
| Fri 4 Apr 1980 | Broxbourne | 2 | 1 | Slight |
| Fri 4 Apr 1980 | Broxbourne | 2 | 1 | Slight |
| Sat 14 Jun 1980 | East Hertfordshire | 2 | 1 | Slight |
| Fri 27 Jun 1980 | Broxbourne | 3 | 1 | Slight |
| Mon 7 Jul 1980 | Broxbourne | 2 | 1 | Slight |
| Mon 7 Jul 1980 | Broxbourne | 2 | 1 | Slight |
| Thu 24 Jul 1980 | Broxbourne | 2 | 3 | Slight |
| Thu 24 Jul 1980 | Broxbourne | 2 | 3 | Slight |
| Fri 29 Aug 1980 | East Hertfordshire | 2 | 1 | Slight |
| Fri 17 Oct 1980 | Broxbourne | 1 | 1 | Slight |
| Fri 17 Oct 1980 | Broxbourne | 1 | 1 | Slight |
| Wed 29 Oct 1980 | East Hertfordshire | 3 | 3 | Slight |
| Wed 26 Nov 1980 | Broxbourne | 2 | 1 | Slight |
| Wed 26 Nov 1980 | Broxbourne | 2 | 1 | Slight |
| Fri 12 Dec 1980 | East Hertfordshire | 3 | 3 | Serious |