Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 5 Jan 1990 | Enfield | 2 | 1 | Slight |
| Sat 6 Jan 1990 | Hertsmere | 1 | 1 | Slight |
| Wed 10 Jan 1990 | Enfield | 2 | 1 | Slight |
| Mon 15 Jan 1990 | Enfield | 1 | 1 | Slight |
| Sun 21 Jan 1990 | Hertsmere | 2 | 1 | Slight |
| Thu 25 Jan 1990 | Enfield | 1 | 2 | Serious |
| Sat 27 Jan 1990 | Enfield | 1 | 1 | Slight |
| Wed 31 Jan 1990 | Enfield | 2 | 2 | Slight |
| Fri 2 Feb 1990 | Enfield | 1 | 1 | Slight |
| Sat 3 Feb 1990 | Enfield | 4 | 1 | Slight |
| Wed 7 Feb 1990 | Enfield | 1 | 1 | Slight |
| Fri 9 Feb 1990 | Enfield | 1 | 1 | Serious |
| Mon 12 Feb 1990 | Enfield | 1 | 1 | Slight |
| Fri 23 Feb 1990 | Enfield | 3 | 1 | Slight |
| Mon 5 Mar 1990 | Enfield | 2 | 1 | Slight |
| Tue 6 Mar 1990 | Enfield | 2 | 1 | Serious |
| Fri 9 Mar 1990 | Hertsmere | 1 | 1 | Slight |
| Fri 9 Mar 1990 | Enfield | 2 | 2 | Slight |
| Sun 18 Mar 1990 | Hertsmere | 2 | 2 | Slight |
| Tue 20 Mar 1990 | Enfield | 2 | 1 | Slight |
| Wed 21 Mar 1990 | Enfield | 3 | 1 | Slight |
| Wed 21 Mar 1990 | Enfield | 3 | 1 | Slight |
| Mon 26 Mar 1990 | Enfield | 2 | 1 | Slight |
| Fri 30 Mar 1990 | Enfield | 1 | 1 | Slight |
| Sat 31 Mar 1990 | Enfield | 2 | 1 | Slight |
| Thu 5 Apr 1990 | Enfield | 3 | 1 | Slight |
| Sat 14 Apr 1990 | Enfield | 2 | 1 | Slight |
| Mon 16 Apr 1990 | Enfield | 2 | 1 | Slight |
| Thu 19 Apr 1990 | Enfield | 3 | 1 | Slight |
| Thu 19 Apr 1990 | Enfield | 3 | 1 | Slight |
| Fri 20 Apr 1990 | Enfield | 1 | 4 | Serious |
| Tue 24 Apr 1990 | Hertsmere | 2 | 1 | Slight |
| Mon 14 May 1990 | Enfield | 2 | 1 | Slight |
| Thu 17 May 1990 | Enfield | 1 | 2 | Slight |
| Thu 17 May 1990 | Enfield | 2 | 1 | Slight |
| Sat 19 May 1990 | Enfield | 1 | 1 | Serious |
| Sat 19 May 1990 | Hertsmere | 2 | 1 | Slight |
| Mon 4 Jun 1990 | Enfield | 2 | 1 | Slight |
| Thu 7 Jun 1990 | Enfield | 2 | 1 | Slight |
| Sun 10 Jun 1990 | Enfield | 2 | 1 | Slight |
| Sun 17 Jun 1990 | Enfield | 2 | 1 | Slight |
| Mon 18 Jun 1990 | Enfield | 2 | 1 | Slight |
| Fri 22 Jun 1990 | Enfield | 5 | 1 | Slight |
| Tue 10 Jul 1990 | Enfield | 1 | 1 | Slight |
| Sun 15 Jul 1990 | Hertsmere | 2 | 1 | Serious |
| Mon 16 Jul 1990 | Enfield | 2 | 1 | Slight |
| Mon 16 Jul 1990 | Enfield | 2 | 1 | Slight |
| Fri 20 Jul 1990 | Hertsmere | 1 | 1 | Slight |
| Mon 23 Jul 1990 | Enfield | 2 | 1 | Slight |
| Mon 23 Jul 1990 | Enfield | 2 | 1 | Slight |
| Wed 1 Aug 1990 | Hertsmere | 1 | 1 | Slight |
| Sun 5 Aug 1990 | Hertsmere | 2 | 1 | Slight |
| Thu 9 Aug 1990 | Enfield | 3 | 1 | Slight |
| Wed 15 Aug 1990 | Enfield | 2 | 1 | Slight |
| Wed 15 Aug 1990 | Hertsmere | 2 | 1 | Slight |
| Fri 17 Aug 1990 | Enfield | 2 | 1 | Slight |
| Sun 19 Aug 1990 | Hertsmere | 3 | 1 | Slight |
| Fri 31 Aug 1990 | Enfield | 1 | 1 | Slight |
| Sat 15 Sep 1990 | Enfield | 3 | 1 | Slight |
| Sat 15 Sep 1990 | Enfield | 2 | 1 | Slight |
| Tue 18 Sep 1990 | Hertsmere | 2 | 1 | Slight |
| Tue 18 Sep 1990 | Enfield | 2 | 1 | Slight |
| Thu 20 Sep 1990 | Enfield | 1 | 1 | Slight |
| Mon 24 Sep 1990 | Enfield | 2 | 1 | Slight |
| Sat 29 Sep 1990 | Enfield | 2 | 2 | Slight |
| Tue 2 Oct 1990 | Hertsmere | 2 | 1 | Slight |
| Thu 4 Oct 1990 | Hertsmere | 2 | 1 | Slight |
| Thu 4 Oct 1990 | Enfield | 2 | 2 | Slight |
| Wed 24 Oct 1990 | Hertsmere | 2 | 2 | Slight |
| Thu 15 Nov 1990 | Enfield | 1 | 1 | Serious |
| Fri 16 Nov 1990 | Enfield | 2 | 1 | Slight |
| Tue 20 Nov 1990 | Enfield | 3 | 1 | Slight |
| Thu 22 Nov 1990 | Enfield | 1 | 1 | Fatal |
| Fri 23 Nov 1990 | Enfield | 1 | 1 | Slight |
| Thu 6 Dec 1990 | Enfield | 2 | 1 | Slight |
| Tue 11 Dec 1990 | Enfield | 2 | 2 | Slight |
| Tue 11 Dec 1990 | Enfield | 2 | 1 | Slight |
| Thu 13 Dec 1990 | Hertsmere | 3 | 1 | Slight |
| Sat 15 Dec 1990 | Enfield | 3 | 1 | Slight |
| Fri 21 Dec 1990 | Enfield | 2 | 1 | Slight |
| Sat 22 Dec 1990 | Enfield | 2 | 1 | Slight |
| Wed 26 Dec 1990 | Enfield | 2 | 2 | Slight |
| Wed 26 Dec 1990 | Enfield | 2 | 1 | Slight |
| Sat 29 Dec 1990 | Enfield | 1 | 1 | Slight |