Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 5 Jan 1981 | Stevenage | 3 | 1 | Slight |
| Tue 6 Jan 1981 | North Hertfordshire | 3 | 1 | Slight |
| Tue 6 Jan 1981 | North Hertfordshire | 3 | 1 | Slight |
| Sat 17 Jan 1981 | Welwyn Hatfield | 1 | 1 | Serious |
| Fri 30 Jan 1981 | Stevenage | 2 | 1 | Slight |
| Tue 3 Feb 1981 | Stevenage | 2 | 1 | Serious |
| Tue 3 Feb 1981 | Stevenage | 2 | 1 | Serious |
| Fri 6 Feb 1981 | Welwyn Hatfield | 1 | 2 | Serious |
| Sun 8 Feb 1981 | Welwyn Hatfield | 5 | 1 | Serious |
| Mon 23 Feb 1981 | Welwyn Hatfield | 2 | 2 | Slight |
| Wed 25 Feb 1981 | Stevenage | 2 | 1 | Slight |
| Wed 11 Mar 1981 | Welwyn Hatfield | 1 | 1 | Slight |
| Wed 11 Mar 1981 | Welwyn Hatfield | 1 | 1 | Slight |
| Thu 12 Mar 1981 | Stevenage | 2 | 1 | Slight |
| Thu 26 Mar 1981 | Stevenage | 3 | 1 | Slight |
| Fri 27 Mar 1981 | Welwyn Hatfield | 2 | 1 | Serious |
| Wed 8 Apr 1981 | Stevenage | 2 | 1 | Slight |
| Fri 1 May 1981 | Welwyn Hatfield | 2 | 1 | Serious |
| Fri 1 May 1981 | Welwyn Hatfield | 2 | 1 | Serious |
| Tue 12 May 1981 | Stevenage | 2 | 1 | Slight |
| Wed 20 May 1981 | Welwyn Hatfield | 1 | 1 | Slight |
| Wed 20 May 1981 | Welwyn Hatfield | 1 | 1 | Slight |
| Wed 27 May 1981 | North Hertfordshire | 2 | 1 | Serious |
| Fri 12 Jun 1981 | North Hertfordshire | 2 | 1 | Slight |
| Sat 27 Jun 1981 | Stevenage | 1 | 1 | Slight |
| Sat 27 Jun 1981 | Stevenage | 1 | 1 | Slight |
| Wed 22 Jul 1981 | Welwyn Hatfield | 1 | 1 | Slight |
| Wed 22 Jul 1981 | Welwyn Hatfield | 1 | 1 | Slight |
| Thu 23 Jul 1981 | North Hertfordshire | 3 | 2 | Slight |
| Sun 26 Jul 1981 | Welwyn Hatfield | 1 | 2 | Serious |
| Tue 28 Jul 1981 | Welwyn Hatfield | 1 | 1 | Serious |
| Thu 20 Aug 1981 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 20 Aug 1981 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 10 Sep 1981 | Stevenage | 2 | 4 | Serious |
| Sat 26 Sep 1981 | Welwyn Hatfield | 2 | 1 | Serious |
| Mon 5 Oct 1981 | Stevenage | 1 | 1 | Serious |
| Mon 5 Oct 1981 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 6 Oct 1981 | North Hertfordshire | 1 | 1 | Slight |
| Wed 7 Oct 1981 | Stevenage | 3 | 1 | Slight |
| Thu 8 Oct 1981 | Stevenage | 2 | 1 | Serious |
| Thu 8 Oct 1981 | Stevenage | 2 | 1 | Serious |
| Wed 14 Oct 1981 | North Hertfordshire | 1 | 1 | Slight |
| Mon 19 Oct 1981 | Stevenage | 1 | 1 | Slight |
| Wed 11 Nov 1981 | Welwyn Hatfield | 2 | 2 | Slight |