Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 9 Jan 1979 | Welwyn Hatfield | 2 | 2 | Slight |
| Tue 9 Jan 1979 | Welwyn Hatfield | 2 | 2 | Slight |
| Tue 9 Jan 1979 | Welwyn Hatfield | 1 | 1 | Slight |
| Tue 9 Jan 1979 | Welwyn Hatfield | 1 | 1 | Slight |
| Sat 3 Feb 1979 | Welwyn Hatfield | 1 | 1 | Serious |
| Sat 3 Feb 1979 | Welwyn Hatfield | 1 | 1 | Serious |
| Sat 17 Feb 1979 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 2 Apr 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 2 Apr 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Sun 1 Jul 1979 | Welwyn Hatfield | 2 | 2 | Serious |
| Sun 1 Jul 1979 | Welwyn Hatfield | 2 | 2 | Serious |
| Tue 10 Jul 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 10 Jul 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 30 Aug 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 30 Aug 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 31 Aug 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 31 Aug 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Sun 30 Sep 1979 | Welwyn Hatfield | 2 | 1 | Serious |
| Sun 30 Sep 1979 | Welwyn Hatfield | 2 | 1 | Serious |
| Tue 16 Oct 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 16 Oct 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 18 Oct 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 18 Oct 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 30 Oct 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 30 Oct 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 2 Nov 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 2 Nov 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 2 Nov 1979 | Welwyn Hatfield | 1 | 1 | Serious |
| Fri 2 Nov 1979 | Welwyn Hatfield | 1 | 1 | Serious |
| Mon 19 Nov 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 19 Nov 1979 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 7 Dec 1979 | Welwyn Hatfield | 1 | 2 | Slight |