Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 3 Jan 1980 | Watford | 2 | 3 | Fatal |
| Thu 3 Jan 1980 | Watford | 2 | 3 | Fatal |
| Fri 25 Jan 1980 | Watford | 2 | 1 | Slight |
| Wed 13 Feb 1980 | Watford | 1 | 1 | Serious |
| Wed 13 Feb 1980 | Watford | 1 | 1 | Serious |
| Sun 9 Mar 1980 | Watford | 2 | 1 | Serious |
| Sun 9 Mar 1980 | Watford | 2 | 1 | Serious |
| Thu 13 Mar 1980 | Watford | 1 | 1 | Slight |
| Thu 13 Mar 1980 | Watford | 1 | 1 | Slight |
| Thu 24 Apr 1980 | Watford | 2 | 4 | Slight |
| Thu 24 Apr 1980 | Watford | 2 | 4 | Slight |
| Mon 12 May 1980 | Watford | 2 | 1 | Serious |
| Mon 12 May 1980 | Watford | 2 | 1 | Serious |
| Thu 15 May 1980 | Watford | 2 | 1 | Serious |
| Tue 20 May 1980 | Three Rivers | 2 | 1 | Slight |
| Wed 28 May 1980 | Watford | 3 | 1 | Slight |
| Wed 28 May 1980 | Watford | 3 | 1 | Slight |
| Thu 12 Jun 1980 | Watford | 2 | 1 | Slight |
| Tue 1 Jul 1980 | Watford | 2 | 1 | Slight |
| Tue 1 Jul 1980 | Watford | 2 | 1 | Slight |
| Mon 14 Jul 1980 | Watford | 2 | 1 | Slight |
| Mon 14 Jul 1980 | Watford | 2 | 1 | Slight |
| Tue 29 Jul 1980 | Three Rivers | 3 | 2 | Slight |
| Mon 11 Aug 1980 | Watford | 2 | 3 | Slight |
| Mon 11 Aug 1980 | Watford | 2 | 3 | Slight |
| Thu 21 Aug 1980 | Watford | 2 | 1 | Serious |
| Wed 27 Aug 1980 | Watford | 2 | 1 | Serious |
| Wed 27 Aug 1980 | Watford | 2 | 1 | Serious |
| Wed 27 Aug 1980 | Watford | 2 | 1 | Slight |
| Wed 27 Aug 1980 | Watford | 2 | 1 | Slight |
| Fri 5 Sep 1980 | Watford | 2 | 1 | Slight |
| Fri 5 Sep 1980 | Watford | 2 | 1 | Slight |
| Sat 13 Sep 1980 | Three Rivers | 1 | 5 | Serious |
| Wed 17 Sep 1980 | Watford | 2 | 1 | Slight |
| Wed 17 Sep 1980 | Watford | 2 | 1 | Slight |
| Thu 18 Sep 1980 | Watford | 2 | 1 | Slight |
| Thu 18 Sep 1980 | Watford | 2 | 1 | Slight |
| Fri 7 Nov 1980 | Three Rivers | 3 | 1 | Serious |
| Fri 14 Nov 1980 | Watford | 1 | 1 | Slight |
| Thu 27 Nov 1980 | Watford | 2 | 1 | Serious |
| Thu 27 Nov 1980 | Watford | 2 | 1 | Serious |