Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 1 Jan 1988 | Barnet | 1 | 1 | Slight |
| Sat 2 Jan 1988 | Barnet | 1 | 1 | Slight |
| Tue 5 Jan 1988 | Barnet | 2 | 1 | Slight |
| Fri 8 Jan 1988 | Barnet | 1 | 1 | Slight |
| Fri 8 Jan 1988 | Barnet | 2 | 2 | Slight |
| Sat 9 Jan 1988 | Haringey | 2 | 1 | Slight |
| Tue 12 Jan 1988 | Hertsmere | 1 | 1 | Slight |
| Wed 13 Jan 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 21 Jan 1988 | Barnet | 1 | 1 | Serious |
| Sat 23 Jan 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 23 Jan 1988 | Hertsmere | 2 | 1 | Slight |
| Sun 24 Jan 1988 | Barnet | 2 | 1 | Slight |
| Tue 26 Jan 1988 | Hertsmere | 2 | 6 | Serious |
| Thu 28 Jan 1988 | Barnet | 2 | 1 | Slight |
| Sat 30 Jan 1988 | Welwyn Hatfield | 1 | 1 | Serious |
| Sat 30 Jan 1988 | Barnet | 1 | 1 | Slight |
| Sat 30 Jan 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 3 Feb 1988 | Hertsmere | 2 | 1 | Slight |
| Thu 4 Feb 1988 | Welwyn Hatfield | 2 | 2 | Slight |
| Thu 4 Feb 1988 | Barnet | 1 | 2 | Slight |
| Sat 6 Feb 1988 | Barnet | 2 | 1 | Slight |
| Sun 7 Feb 1988 | Barnet | 2 | 1 | Slight |
| Thu 11 Feb 1988 | Hertsmere | 1 | 1 | Slight |
| Thu 11 Feb 1988 | Barnet | 3 | 1 | Slight |
| Thu 11 Feb 1988 | Barnet | 3 | 1 | Slight |
| Fri 12 Feb 1988 | Barnet | 1 | 1 | Slight |
| Sat 13 Feb 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Fri 19 Feb 1988 | Barnet | 3 | 1 | Slight |
| Tue 23 Feb 1988 | Barnet | 2 | 1 | Slight |
| Wed 24 Feb 1988 | Barnet | 1 | 1 | Serious |
| Wed 24 Feb 1988 | Barnet | 2 | 1 | Slight |
| Thu 25 Feb 1988 | Welwyn Hatfield | 2 | 2 | Slight |
| Fri 26 Feb 1988 | Barnet | 1 | 1 | Slight |
| Mon 29 Feb 1988 | Welwyn Hatfield | 2 | 2 | Slight |
| Wed 2 Mar 1988 | Barnet | 2 | 1 | Slight |
| Thu 3 Mar 1988 | Barnet | 3 | 1 | Slight |
| Thu 3 Mar 1988 | Barnet | 3 | 1 | Slight |
| Thu 3 Mar 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 4 Mar 1988 | Barnet | 3 | 1 | Slight |
| Sun 6 Mar 1988 | Haringey | 2 | 1 | Slight |
| Mon 7 Mar 1988 | Barnet | 1 | 1 | Slight |
| Tue 8 Mar 1988 | Barnet | 3 | 1 | Slight |
| Fri 11 Mar 1988 | Welwyn Hatfield | 1 | 1 | Serious |
| Sun 13 Mar 1988 | Barnet | 1 | 1 | Slight |
| Mon 14 Mar 1988 | Barnet | 1 | 1 | Slight |
| Tue 15 Mar 1988 | Barnet | 1 | 1 | Slight |
| Thu 17 Mar 1988 | Barnet | 1 | 1 | Serious |
| Fri 18 Mar 1988 | Barnet | 1 | 1 | Serious |
| Fri 18 Mar 1988 | Barnet | 1 | 1 | Serious |
| Mon 21 Mar 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 21 Mar 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 22 Mar 1988 | Haringey | 2 | 1 | Slight |
| Thu 24 Mar 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 25 Mar 1988 | Barnet | 2 | 1 | Slight |
| Mon 28 Mar 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 28 Mar 1988 | Hertsmere | 2 | 1 | Slight |
| Wed 30 Mar 1988 | Barnet | 1 | 1 | Slight |
| Thu 31 Mar 1988 | Barnet | 2 | 1 | Slight |
| Fri 1 Apr 1988 | Welwyn Hatfield | 2 | 3 | Fatal |
| Sun 3 Apr 1988 | Barnet | 2 | 1 | Slight |
| Tue 5 Apr 1988 | Barnet | 2 | 2 | Slight |
| Sat 9 Apr 1988 | Barnet | 2 | 1 | Slight |
| Sun 10 Apr 1988 | Hertsmere | 1 | 1 | Serious |
| Mon 11 Apr 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Tue 12 Apr 1988 | Barnet | 1 | 1 | Slight |
| Tue 12 Apr 1988 | Hertsmere | 1 | 1 | Slight |
| Thu 14 Apr 1988 | Barnet | 2 | 3 | Slight |
| Fri 15 Apr 1988 | Barnet | 1 | 2 | Serious |
| Sat 16 Apr 1988 | Barnet | 2 | 1 | Slight |
| Sat 16 Apr 1988 | Barnet | 1 | 1 | Serious |
| Sun 17 Apr 1988 | Barnet | 2 | 1 | Slight |
| Wed 20 Apr 1988 | Barnet | 2 | 1 | Slight |
| Wed 20 Apr 1988 | Hertsmere | 2 | 1 | Slight |
| Thu 21 Apr 1988 | Welwyn Hatfield | 2 | 2 | Slight |
| Sat 23 Apr 1988 | Barnet | 1 | 1 | Serious |
| Sun 24 Apr 1988 | Barnet | 3 | 1 | Slight |
| Tue 26 Apr 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Thu 28 Apr 1988 | Barnet | 2 | 1 | Slight |
| Thu 28 Apr 1988 | Welwyn Hatfield | 1 | 1 | Serious |
| Fri 29 Apr 1988 | Barnet | 1 | 1 | Slight |
| Sat 30 Apr 1988 | Welwyn Hatfield | 3 | 4 | Fatal |
| Mon 2 May 1988 | Barnet | 2 | 1 | Slight |
| Mon 2 May 1988 | Welwyn Hatfield | 2 | 2 | Slight |
| Wed 4 May 1988 | Barnet | 2 | 2 | Slight |
| Wed 4 May 1988 | Hertsmere | 2 | 1 | Slight |
| Thu 5 May 1988 | Barnet | 1 | 1 | Slight |
| Sat 7 May 1988 | Barnet | 1 | 1 | Slight |
| Sat 7 May 1988 | Hertsmere | 1 | 1 | Serious |
| Wed 11 May 1988 | Barnet | 2 | 1 | Slight |
| Fri 13 May 1988 | Barnet | 2 | 1 | Slight |
| Sat 14 May 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Sun 15 May 1988 | Barnet | 2 | 1 | Serious |
| Tue 17 May 1988 | Barnet | 2 | 1 | Slight |
| Sun 22 May 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 24 May 1988 | Barnet | 1 | 1 | Slight |
| Wed 25 May 1988 | Barnet | 2 | 1 | Serious |
| Thu 26 May 1988 | Barnet | 2 | 1 | Slight |
| Mon 30 May 1988 | Barnet | 2 | 1 | Slight |
| Mon 30 May 1988 | Barnet | 2 | 1 | Slight |
| Mon 30 May 1988 | Barnet | 2 | 1 | Slight |
| Mon 30 May 1988 | Hertsmere | 2 | 1 | Slight |
| Fri 3 Jun 1988 | Barnet | 2 | 2 | Slight |
| Sat 4 Jun 1988 | Welwyn Hatfield | 3 | 1 | Slight |
| Sat 4 Jun 1988 | Hertsmere | 2 | 2 | Slight |
| Sat 4 Jun 1988 | Barnet | 2 | 1 | Slight |
| Sun 5 Jun 1988 | Barnet | 2 | 1 | Slight |
| Sun 5 Jun 1988 | Barnet | 2 | 1 | Slight |
| Sun 5 Jun 1988 | Welwyn Hatfield | 1 | 3 | Slight |
| Mon 6 Jun 1988 | Hertsmere | 3 | 1 | Slight |
| Thu 9 Jun 1988 | Hertsmere | 2 | 2 | Slight |
| Fri 10 Jun 1988 | Barnet | 1 | 1 | Slight |
| Sat 11 Jun 1988 | Haringey | 1 | 1 | Serious |
| Sun 12 Jun 1988 | Barnet | 1 | 1 | Slight |
| Thu 16 Jun 1988 | Welwyn Hatfield | 2 | 4 | Slight |
| Mon 20 Jun 1988 | Barnet | 1 | 1 | Slight |
| Mon 20 Jun 1988 | Barnet | 1 | 1 | Slight |
| Mon 27 Jun 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 27 Jun 1988 | Barnet | 2 | 1 | Slight |
| Mon 27 Jun 1988 | Barnet | 1 | 1 | Slight |
| Sun 3 Jul 1988 | Hertsmere | 2 | 1 | Slight |
| Mon 4 Jul 1988 | Welwyn Hatfield | 1 | 2 | Slight |
| Wed 6 Jul 1988 | Welwyn Hatfield | 3 | 3 | Slight |
| Wed 6 Jul 1988 | Barnet | 3 | 1 | Slight |
| Thu 7 Jul 1988 | Barnet | 2 | 1 | Slight |
| Fri 8 Jul 1988 | Barnet | 1 | 1 | Slight |
| Sat 9 Jul 1988 | Barnet | 1 | 1 | Slight |
| Sun 10 Jul 1988 | Barnet | 2 | 2 | Slight |
| Wed 13 Jul 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 14 Jul 1988 | Barnet | 2 | 1 | Slight |
| Fri 15 Jul 1988 | Barnet | 1 | 1 | Slight |
| Sat 16 Jul 1988 | Barnet | 1 | 1 | Slight |
| Sat 16 Jul 1988 | Barnet | 1 | 1 | Serious |
| Sun 17 Jul 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 18 Jul 1988 | Barnet | 3 | 1 | Slight |
| Mon 18 Jul 1988 | Hertsmere | 3 | 1 | Slight |
| Mon 18 Jul 1988 | Hertsmere | 2 | 1 | Slight |
| Tue 19 Jul 1988 | Barnet | 1 | 1 | Serious |
| Tue 19 Jul 1988 | Barnet | 1 | 1 | Serious |
| Wed 20 Jul 1988 | Barnet | 1 | 1 | Slight |
| Fri 22 Jul 1988 | Barnet | 1 | 1 | Slight |
| Sat 23 Jul 1988 | Barnet | 1 | 1 | Slight |
| Sat 23 Jul 1988 | Barnet | 2 | 1 | Slight |
| Sat 23 Jul 1988 | Barnet | 2 | 1 | Slight |
| Sun 24 Jul 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 27 Jul 1988 | Barnet | 2 | 1 | Slight |
| Fri 29 Jul 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 1 Aug 1988 | Barnet | 2 | 1 | Slight |
| Tue 2 Aug 1988 | Barnet | 4 | 2 | Slight |
| Tue 2 Aug 1988 | Barnet | 2 | 1 | Serious |
| Tue 2 Aug 1988 | Barnet | 2 | 1 | Serious |
| Thu 4 Aug 1988 | Hertsmere | 2 | 1 | Slight |
| Sat 6 Aug 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Sun 7 Aug 1988 | Barnet | 1 | 1 | Serious |
| Wed 10 Aug 1988 | Barnet | 1 | 1 | Slight |
| Thu 11 Aug 1988 | Barnet | 2 | 1 | Slight |
| Tue 16 Aug 1988 | Barnet | 1 | 1 | Slight |
| Fri 19 Aug 1988 | Haringey | 2 | 1 | Slight |
| Fri 19 Aug 1988 | Barnet | 1 | 1 | Slight |
| Tue 23 Aug 1988 | Barnet | 1 | 1 | Serious |
| Tue 23 Aug 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 23 Aug 1988 | Barnet | 1 | 1 | Slight |
| Tue 23 Aug 1988 | Barnet | 2 | 1 | Serious |
| Thu 25 Aug 1988 | Barnet | 2 | 1 | Slight |
| Sat 27 Aug 1988 | Barnet | 2 | 1 | Slight |
| Sat 27 Aug 1988 | Barnet | 2 | 1 | Slight |
| Mon 29 Aug 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Mon 29 Aug 1988 | Barnet | 2 | 1 | Slight |
| Wed 31 Aug 1988 | Barnet | 2 | 1 | Slight |
| Wed 31 Aug 1988 | Barnet | 2 | 1 | Slight |
| Wed 31 Aug 1988 | Barnet | 2 | 1 | Slight |
| Thu 1 Sep 1988 | Barnet | 2 | 1 | Slight |
| Sun 4 Sep 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 5 Sep 1988 | Barnet | 2 | 1 | Slight |
| Mon 5 Sep 1988 | Barnet | 2 | 1 | Slight |
| Thu 8 Sep 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 9 Sep 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Sat 10 Sep 1988 | Barnet | 2 | 2 | Slight |
| Mon 12 Sep 1988 | Barnet | 3 | 1 | Slight |
| Mon 12 Sep 1988 | Barnet | 1 | 1 | Slight |
| Thu 15 Sep 1988 | Welwyn Hatfield | 1 | 4 | Serious |
| Tue 20 Sep 1988 | Barnet | 5 | 1 | Serious |
| Thu 22 Sep 1988 | Barnet | 2 | 1 | Slight |
| Fri 23 Sep 1988 | Welwyn Hatfield | 2 | 2 | Serious |
| Sat 24 Sep 1988 | Barnet | 2 | 3 | Slight |
| Sat 24 Sep 1988 | Welwyn Hatfield | 2 | 2 | Serious |
| Mon 26 Sep 1988 | Hertsmere | 2 | 1 | Slight |
| Wed 28 Sep 1988 | Welwyn Hatfield | 1 | 4 | Fatal |
| Wed 28 Sep 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 28 Sep 1988 | Welwyn Hatfield | 1 | 1 | Serious |
| Thu 29 Sep 1988 | Barnet | 1 | 2 | Slight |
| Sun 2 Oct 1988 | Barnet | 2 | 1 | Slight |
| Mon 3 Oct 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 6 Oct 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 6 Oct 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 6 Oct 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 6 Oct 1988 | Welwyn Hatfield | 3 | 2 | Slight |
| Fri 7 Oct 1988 | Barnet | 1 | 1 | Slight |
| Fri 7 Oct 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Sat 8 Oct 1988 | Barnet | 1 | 1 | Slight |
| Sat 8 Oct 1988 | Barnet | 1 | 1 | Slight |
| Sat 8 Oct 1988 | Barnet | 1 | 1 | Slight |
| Tue 11 Oct 1988 | Haringey | 2 | 1 | Slight |
| Wed 12 Oct 1988 | Barnet | 3 | 1 | Slight |
| Fri 14 Oct 1988 | Barnet | 2 | 1 | Serious |
| Mon 17 Oct 1988 | Welwyn Hatfield | 2 | 4 | Slight |
| Mon 17 Oct 1988 | Barnet | 2 | 2 | Slight |
| Tue 18 Oct 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 21 Oct 1988 | Barnet | 1 | 1 | Slight |
| Fri 21 Oct 1988 | Barnet | 2 | 1 | Slight |
| Sat 22 Oct 1988 | Barnet | 1 | 1 | Slight |
| Sat 22 Oct 1988 | Barnet | 1 | 1 | Serious |
| Sat 22 Oct 1988 | Barnet | 1 | 1 | Slight |
| Wed 26 Oct 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 28 Oct 1988 | Barnet | 1 | 1 | Slight |
| Tue 1 Nov 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 1 Nov 1988 | Barnet | 2 | 1 | Slight |
| Wed 2 Nov 1988 | Barnet | 1 | 1 | Slight |
| Wed 2 Nov 1988 | Barnet | 1 | 1 | Serious |
| Thu 3 Nov 1988 | Welwyn Hatfield | 2 | 1 | Serious |
| Thu 3 Nov 1988 | Barnet | 2 | 1 | Slight |
| Thu 3 Nov 1988 | Welwyn Hatfield | 2 | 1 | Serious |
| Fri 4 Nov 1988 | Welwyn Hatfield | 2 | 1 | Serious |
| Fri 4 Nov 1988 | Welwyn Hatfield | 2 | 1 | Serious |
| Sat 5 Nov 1988 | Hertsmere | 2 | 2 | Fatal |
| Sat 5 Nov 1988 | Barnet | 1 | 1 | Slight |
| Sat 5 Nov 1988 | Barnet | 1 | 1 | Slight |
| Sat 5 Nov 1988 | Hertsmere | 3 | 1 | Slight |
| Sun 6 Nov 1988 | Welwyn Hatfield | 2 | 1 | Serious |
| Tue 8 Nov 1988 | Barnet | 1 | 1 | Slight |
| Thu 10 Nov 1988 | Barnet | 2 | 1 | Slight |
| Fri 11 Nov 1988 | Barnet | 1 | 1 | Slight |
| Mon 14 Nov 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 14 Nov 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Fri 18 Nov 1988 | Barnet | 2 | 1 | Slight |
| Sat 19 Nov 1988 | Barnet | 2 | 1 | Slight |
| Sun 20 Nov 1988 | Barnet | 2 | 2 | Slight |
| Sun 20 Nov 1988 | Welwyn Hatfield | 7 | 2 | Slight |
| Sun 20 Nov 1988 | Barnet | 3 | 1 | Slight |
| Sun 20 Nov 1988 | Barnet | 1 | 1 | Slight |
| Mon 21 Nov 1988 | Barnet | 1 | 1 | Slight |
| Tue 22 Nov 1988 | Barnet | 2 | 1 | Serious |
| Tue 22 Nov 1988 | Barnet | 2 | 1 | Serious |
| Tue 22 Nov 1988 | Welwyn Hatfield | 4 | 1 | Slight |
| Fri 25 Nov 1988 | Barnet | 3 | 1 | Slight |
| Mon 28 Nov 1988 | Hertsmere | 1 | 1 | Slight |
| Mon 28 Nov 1988 | Welwyn Hatfield | 3 | 1 | Slight |
| Mon 28 Nov 1988 | Barnet | 2 | 1 | Slight |
| Wed 30 Nov 1988 | Barnet | 2 | 1 | Slight |
| Wed 30 Nov 1988 | Barnet | 1 | 1 | Serious |
| Wed 30 Nov 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 30 Nov 1988 | Barnet | 1 | 1 | Slight |
| Thu 1 Dec 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 2 Dec 1988 | Barnet | 3 | 1 | Slight |
| Fri 2 Dec 1988 | Welwyn Hatfield | 2 | 2 | Serious |
| Sat 3 Dec 1988 | Barnet | 1 | 1 | Slight |
| Tue 6 Dec 1988 | Hertsmere | 1 | 1 | Slight |
| Tue 6 Dec 1988 | Barnet | 2 | 1 | Slight |
| Tue 6 Dec 1988 | Barnet | 1 | 1 | Slight |
| Wed 7 Dec 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 8 Dec 1988 | Barnet | 1 | 1 | Serious |
| Sat 10 Dec 1988 | Barnet | 2 | 2 | Slight |
| Sat 10 Dec 1988 | Barnet | 2 | 1 | Slight |
| Mon 12 Dec 1988 | Barnet | 1 | 1 | Slight |
| Tue 13 Dec 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 13 Dec 1988 | Barnet | 2 | 1 | Slight |
| Wed 14 Dec 1988 | Barnet | 2 | 2 | Slight |
| Thu 15 Dec 1988 | Barnet | 1 | 1 | Slight |
| Sat 17 Dec 1988 | Hertsmere | 2 | 1 | Slight |
| Mon 19 Dec 1988 | Welwyn Hatfield | 2 | 2 | Slight |
| Mon 19 Dec 1988 | Barnet | 2 | 1 | Slight |
| Fri 23 Dec 1988 | Hertsmere | 2 | 1 | Slight |
| Sat 24 Dec 1988 | Barnet | 3 | 1 | Slight |
| Sat 24 Dec 1988 | Hertsmere | 1 | 1 | Slight |
| Mon 26 Dec 1988 | Welwyn Hatfield | 1 | 2 | Serious |
| Tue 27 Dec 1988 | Welwyn Hatfield | 2 | 2 | Slight |