Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 10 Jan 1979 | Watford | 1 | 1 | Serious |
| Wed 10 Jan 1979 | Watford | 1 | 1 | Serious |
| Thu 18 Jan 1979 | Three Rivers | 2 | 2 | Slight |
| Fri 19 Jan 1979 | Three Rivers | 1 | 1 | Serious |
| Sat 20 Jan 1979 | Watford | 2 | 1 | Serious |
| Mon 5 Feb 1979 | Three Rivers | 2 | 4 | Serious |
| Mon 5 Mar 1979 | Three Rivers | 2 | 4 | Slight |
| Mon 5 Mar 1979 | Three Rivers | 2 | 4 | Slight |
| Tue 13 Mar 1979 | Three Rivers | 2 | 1 | Slight |
| Tue 13 Mar 1979 | Three Rivers | 2 | 1 | Slight |
| Tue 20 Mar 1979 | Watford | 2 | 1 | Slight |
| Tue 20 Mar 1979 | Watford | 2 | 1 | Slight |
| Mon 26 Mar 1979 | Three Rivers | 2 | 1 | Slight |
| Mon 9 Apr 1979 | Three Rivers | 2 | 1 | Slight |
| Mon 9 Apr 1979 | Three Rivers | 2 | 1 | Slight |
| Fri 13 Apr 1979 | Three Rivers | 1 | 1 | Slight |
| Fri 13 Apr 1979 | Three Rivers | 1 | 1 | Slight |
| Tue 8 May 1979 | Three Rivers | 2 | 2 | Slight |
| Thu 14 Jun 1979 | Three Rivers | 2 | 2 | Slight |
| Fri 22 Jun 1979 | Three Rivers | 1 | 2 | Slight |
| Sat 14 Jul 1979 | Three Rivers | 2 | 1 | Slight |
| Sat 14 Jul 1979 | Three Rivers | 2 | 1 | Slight |
| Sun 22 Jul 1979 | Three Rivers | 1 | 1 | Slight |
| Tue 24 Jul 1979 | Watford | 2 | 1 | Slight |
| Tue 24 Jul 1979 | Watford | 2 | 1 | Slight |
| Thu 16 Aug 1979 | Watford | 2 | 1 | Serious |
| Thu 16 Aug 1979 | Watford | 2 | 1 | Serious |
| Sun 19 Aug 1979 | Watford | 2 | 2 | Slight |
| Sun 19 Aug 1979 | Watford | 2 | 2 | Slight |
| Fri 31 Aug 1979 | Watford | 2 | 1 | Serious |
| Fri 31 Aug 1979 | Watford | 2 | 1 | Serious |
| Sun 2 Sep 1979 | Three Rivers | 2 | 2 | Slight |
| Sun 2 Sep 1979 | Three Rivers | 2 | 2 | Slight |
| Sat 22 Sep 1979 | Three Rivers | 1 | 1 | Slight |
| Wed 26 Sep 1979 | Watford | 2 | 1 | Slight |
| Thu 27 Sep 1979 | Three Rivers | 2 | 2 | Slight |
| Fri 5 Oct 1979 | Three Rivers | 1 | 3 | Serious |
| Tue 9 Oct 1979 | Three Rivers | 2 | 1 | Slight |
| Tue 9 Oct 1979 | Three Rivers | 2 | 1 | Slight |
| Wed 24 Oct 1979 | Watford | 2 | 1 | Serious |
| Tue 11 Dec 1979 | Three Rivers | 1 | 1 | Serious |
| Sat 29 Dec 1979 | Three Rivers | 2 | 1 | Slight |
| Sat 29 Dec 1979 | Three Rivers | 2 | 1 | Slight |