Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 3 Jan 1987 | St. Albans | 2 | 1 | Slight |
| Mon 5 Jan 1987 | Hertsmere | 2 | 1 | Slight |
| Tue 6 Jan 1987 | St. Albans | 3 | 1 | Slight |
| Tue 17 Feb 1987 | Hertsmere | 3 | 1 | Slight |
| Sun 15 Mar 1987 | Hertsmere | 2 | 1 | Slight |
| Mon 16 Mar 1987 | Hertsmere | 3 | 1 | Slight |
| Mon 16 Mar 1987 | St. Albans | 3 | 1 | Slight |
| Tue 24 Mar 1987 | St. Albans | 2 | 1 | Slight |
| Fri 27 Mar 1987 | St. Albans | 1 | 1 | Slight |
| Sat 28 Mar 1987 | Hertsmere | 2 | 1 | Slight |
| Wed 1 Apr 1987 | St. Albans | 2 | 1 | Slight |
| Sat 11 Apr 1987 | St. Albans | 1 | 1 | Slight |
| Wed 15 Apr 1987 | Hertsmere | 1 | 1 | Slight |
| Thu 16 Apr 1987 | Hertsmere | 1 | 1 | Serious |
| Sat 25 Apr 1987 | St. Albans | 2 | 1 | Fatal |
| Wed 6 May 1987 | Dacorum | 2 | 1 | Slight |
| Fri 8 May 1987 | Hertsmere | 2 | 1 | Slight |
| Fri 8 May 1987 | Hertsmere | 2 | 2 | Serious |
| Fri 8 May 1987 | St. Albans | 2 | 2 | Slight |
| Sun 10 May 1987 | Hertsmere | 2 | 1 | Slight |
| Sat 16 May 1987 | St. Albans | 1 | 2 | Serious |
| Wed 27 May 1987 | Hertsmere | 2 | 2 | Fatal |
| Fri 29 May 1987 | Hertsmere | 2 | 1 | Slight |
| Mon 1 Jun 1987 | St. Albans | 1 | 1 | Slight |
| Thu 4 Jun 1987 | Hertsmere | 2 | 3 | Slight |
| Fri 5 Jun 1987 | St. Albans | 2 | 2 | Serious |
| Sat 6 Jun 1987 | St. Albans | 2 | 1 | Slight |
| Tue 9 Jun 1987 | Hertsmere | 2 | 1 | Slight |
| Wed 10 Jun 1987 | St. Albans | 2 | 2 | Serious |
| Thu 11 Jun 1987 | St. Albans | 2 | 1 | Serious |
| Sat 13 Jun 1987 | Hertsmere | 2 | 1 | Slight |
| Sat 13 Jun 1987 | Hertsmere | 2 | 1 | Slight |
| Sat 13 Jun 1987 | Hertsmere | 1 | 1 | Slight |
| Sun 14 Jun 1987 | St. Albans | 2 | 1 | Slight |
| Wed 17 Jun 1987 | Hertsmere | 2 | 1 | Slight |
| Fri 19 Jun 1987 | St. Albans | 2 | 7 | Serious |
| Sat 20 Jun 1987 | Hertsmere | 2 | 1 | Slight |
| Thu 25 Jun 1987 | St. Albans | 2 | 1 | Slight |
| Fri 26 Jun 1987 | St. Albans | 3 | 1 | Slight |
| Sat 27 Jun 1987 | St. Albans | 1 | 1 | Slight |
| Sun 28 Jun 1987 | Hertsmere | 1 | 1 | Slight |
| Tue 30 Jun 1987 | St. Albans | 1 | 1 | Slight |
| Fri 3 Jul 1987 | St. Albans | 1 | 1 | Slight |
| Tue 14 Jul 1987 | Hertsmere | 1 | 1 | Slight |
| Sun 19 Jul 1987 | St. Albans | 2 | 2 | Slight |
| Sun 26 Jul 1987 | Dacorum | 2 | 1 | Slight |
| Mon 27 Jul 1987 | Hertsmere | 2 | 1 | Slight |
| Thu 30 Jul 1987 | Hertsmere | 2 | 1 | Slight |
| Sun 9 Aug 1987 | Hertsmere | 2 | 2 | Slight |
| Mon 17 Aug 1987 | Hertsmere | 1 | 2 | Slight |
| Wed 19 Aug 1987 | St. Albans | 2 | 2 | Serious |
| Thu 20 Aug 1987 | Hertsmere | 1 | 2 | Slight |
| Tue 25 Aug 1987 | St. Albans | 2 | 3 | Slight |
| Sat 29 Aug 1987 | St. Albans | 2 | 3 | Slight |
| Mon 31 Aug 1987 | St. Albans | 2 | 1 | Slight |
| Tue 1 Sep 1987 | St. Albans | 1 | 1 | Slight |
| Wed 2 Sep 1987 | Hertsmere | 3 | 1 | Slight |
| Sun 6 Sep 1987 | St. Albans | 3 | 4 | Slight |
| Sun 13 Sep 1987 | St. Albans | 2 | 1 | Slight |
| Fri 18 Sep 1987 | Hertsmere | 2 | 5 | Slight |
| Mon 21 Sep 1987 | Hertsmere | 1 | 2 | Serious |
| Tue 22 Sep 1987 | St. Albans | 3 | 1 | Slight |
| Tue 22 Sep 1987 | Hertsmere | 2 | 1 | Slight |
| Fri 25 Sep 1987 | St. Albans | 2 | 1 | Slight |
| Mon 28 Sep 1987 | St. Albans | 2 | 1 | Slight |
| Tue 6 Oct 1987 | St. Albans | 2 | 1 | Slight |
| Sun 11 Oct 1987 | St. Albans | 2 | 3 | Slight |
| Sun 11 Oct 1987 | St. Albans | 1 | 1 | Fatal |
| Fri 16 Oct 1987 | Hertsmere | 1 | 1 | Slight |
| Mon 19 Oct 1987 | St. Albans | 2 | 1 | Slight |
| Mon 19 Oct 1987 | St. Albans | 1 | 1 | Slight |
| Tue 20 Oct 1987 | St. Albans | 2 | 1 | Slight |
| Wed 21 Oct 1987 | St. Albans | 1 | 1 | Slight |
| Sat 24 Oct 1987 | St. Albans | 1 | 1 | Slight |
| Mon 26 Oct 1987 | Hertsmere | 2 | 1 | Serious |
| Mon 26 Oct 1987 | Hertsmere | 1 | 1 | Slight |
| Sun 1 Nov 1987 | Hertsmere | 2 | 6 | Fatal |
| Mon 2 Nov 1987 | St. Albans | 3 | 2 | Slight |
| Mon 2 Nov 1987 | St. Albans | 2 | 1 | Slight |
| Sun 8 Nov 1987 | Hertsmere | 2 | 1 | Slight |
| Fri 13 Nov 1987 | St. Albans | 1 | 1 | Serious |
| Fri 20 Nov 1987 | St. Albans | 2 | 1 | Slight |
| Mon 23 Nov 1987 | St. Albans | 3 | 1 | Slight |
| Wed 25 Nov 1987 | St. Albans | 2 | 1 | Slight |
| Sun 29 Nov 1987 | St. Albans | 2 | 1 | Slight |
| Sun 29 Nov 1987 | St. Albans | 3 | 1 | Slight |
| Sun 6 Dec 1987 | Hertsmere | 2 | 1 | Slight |
| Sun 6 Dec 1987 | Hertsmere | 2 | 1 | Serious |
| Thu 10 Dec 1987 | St. Albans | 2 | 1 | Slight |
| Mon 14 Dec 1987 | St. Albans | 2 | 1 | Slight |
| Tue 15 Dec 1987 | Hertsmere | 2 | 2 | Slight |
| Mon 21 Dec 1987 | Hertsmere | 2 | 3 | Slight |