Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 15 Jan 1990 | Harrow | 3 | 1 | Serious |
| Fri 19 Jan 1990 | Harrow | 1 | 1 | Slight |
| Tue 13 Feb 1990 | Barnet | 2 | 1 | Slight |
| Mon 19 Feb 1990 | Barnet | 1 | 1 | Slight |
| Tue 20 Feb 1990 | Harrow | 1 | 1 | Serious |
| Sat 10 Mar 1990 | Harrow | 2 | 1 | Slight |
| Fri 6 Apr 1990 | Harrow | 1 | 1 | Serious |
| Fri 27 Apr 1990 | Harrow | 1 | 1 | Slight |
| Mon 9 Jul 1990 | Harrow | 1 | 2 | Slight |
| Mon 16 Jul 1990 | Harrow | 2 | 2 | Serious |
| Fri 17 Aug 1990 | Harrow | 2 | 1 | Slight |
| Thu 30 Aug 1990 | Harrow | 2 | 1 | Slight |
| Mon 10 Sep 1990 | Barnet | 1 | 1 | Serious |
| Wed 19 Sep 1990 | Harrow | 1 | 1 | Slight |
| Sun 23 Sep 1990 | Harrow | 1 | 1 | Slight |
| Fri 9 Nov 1990 | Harrow | 4 | 3 | Slight |
| Tue 13 Nov 1990 | Harrow | 1 | 1 | Slight |
| Fri 23 Nov 1990 | Harrow | 2 | 2 | Serious |