Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sun 1 Feb 1987 | East Hertfordshire | 1 | 2 | Serious |
| Mon 2 Feb 1987 | Welwyn Hatfield | 2 | 2 | Slight |
| Sun 15 Feb 1987 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 23 Feb 1987 | Welwyn Hatfield | 3 | 2 | Slight |
| Mon 23 Feb 1987 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 5 Mar 1987 | Welwyn Hatfield | 2 | 1 | Serious |
| Mon 6 Apr 1987 | Welwyn Hatfield | 1 | 3 | Slight |
| Thu 28 May 1987 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 10 Jun 1987 | Welwyn Hatfield | 2 | 1 | Serious |
| Fri 10 Jul 1987 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 18 Jul 1987 | Welwyn Hatfield | 2 | 4 | Slight |
| Sat 18 Jul 1987 | Welwyn Hatfield | 2 | 4 | Slight |
| Tue 4 Aug 1987 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 4 Aug 1987 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 3 Sep 1987 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 3 Sep 1987 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 12 Oct 1987 | Welwyn Hatfield | 3 | 1 | Slight |
| Wed 14 Oct 1987 | Welwyn Hatfield | 1 | 1 | Slight |
| Thu 15 Oct 1987 | Welwyn Hatfield | 3 | 3 | Slight |
| Wed 11 Nov 1987 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 23 Nov 1987 | Welwyn Hatfield | 2 | 3 | Slight |
| Sat 28 Nov 1987 | East Hertfordshire | 2 | 2 | Fatal |