Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 23 Jan 1980 | East Hertfordshire | 2 | 1 | Serious |
| Wed 23 Jan 1980 | East Hertfordshire | 2 | 1 | Serious |
| Sat 2 Feb 1980 | East Hertfordshire | 2 | 3 | Serious |
| Sat 2 Feb 1980 | East Hertfordshire | 2 | 3 | Serious |
| Sun 13 Jul 1980 | East Hertfordshire | 3 | 3 | Serious |
| Sun 13 Jul 1980 | East Hertfordshire | 3 | 3 | Serious |
| Tue 22 Jul 1980 | East Hertfordshire | 3 | 2 | Slight |
| Tue 22 Jul 1980 | East Hertfordshire | 3 | 2 | Slight |
| Sun 21 Sep 1980 | East Hertfordshire | 1 | 1 | Slight |
| Sun 21 Sep 1980 | East Hertfordshire | 1 | 1 | Slight |
| Wed 1 Oct 1980 | East Hertfordshire | 2 | 1 | Serious |
| Wed 1 Oct 1980 | East Hertfordshire | 2 | 1 | Serious |
| Thu 9 Oct 1980 | East Hertfordshire | 2 | 3 | Slight |
| Sun 19 Oct 1980 | East Hertfordshire | 2 | 3 | Serious |
| Thu 27 Nov 1980 | East Hertfordshire | 1 | 1 | Slight |