Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 1 Jan 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 5 Jan 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 8 Jan 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Tue 9 Jan 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Wed 10 Jan 1990 | Hounslow | 2 | 1 | Slight |
| Thu 11 Jan 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Tue 16 Jan 1990 | Spelthorne | 2 | 1 | Slight |
| Sat 20 Jan 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Mon 22 Jan 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 24 Jan 1990 | Richmond upon Thames | 2 | 1 | Serious |
| Thu 25 Jan 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 27 Jan 1990 | Richmond upon Thames | 2 | 3 | Slight |
| Sat 27 Jan 1990 | Hounslow | 2 | 2 | Serious |
| Sun 28 Jan 1990 | Hounslow | 2 | 1 | Slight |
| Tue 30 Jan 1990 | Hounslow | 2 | 1 | Slight |
| Mon 5 Feb 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 6 Feb 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 10 Feb 1990 | Richmond upon Thames | 3 | 1 | Slight |
| Wed 14 Feb 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 14 Feb 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 16 Feb 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 16 Feb 1990 | Hounslow | 2 | 1 | Slight |
| Sat 17 Feb 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 17 Feb 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 22 Feb 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 25 Feb 1990 | Richmond upon Thames | 3 | 2 | Slight |
| Mon 26 Feb 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 1 Mar 1990 | Hounslow | 1 | 1 | Slight |
| Fri 9 Mar 1990 | Hounslow | 2 | 1 | Slight |
| Tue 13 Mar 1990 | Hounslow | 2 | 1 | Slight |
| Tue 13 Mar 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 21 Mar 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 23 Mar 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 25 Mar 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 30 Mar 1990 | Richmond upon Thames | 3 | 1 | Slight |
| Sat 31 Mar 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 5 Apr 1990 | Richmond upon Thames | 2 | 3 | Serious |
| Sat 14 Apr 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Tue 17 Apr 1990 | Hounslow | 2 | 1 | Slight |
| Tue 17 Apr 1990 | Hounslow | 1 | 2 | Slight |
| Fri 20 Apr 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 22 Apr 1990 | Hounslow | 1 | 1 | Slight |
| Mon 23 Apr 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 23 Apr 1990 | Richmond upon Thames | 2 | 2 | Serious |
| Fri 27 Apr 1990 | Richmond upon Thames | 4 | 2 | Slight |
| Sun 29 Apr 1990 | Richmond upon Thames | 2 | 6 | Serious |
| Mon 30 Apr 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 1 May 1990 | Richmond upon Thames | 2 | 3 | Slight |
| Wed 2 May 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 4 May 1990 | Hounslow | 2 | 1 | Slight |
| Sun 6 May 1990 | Spelthorne | 2 | 1 | Slight |
| Sun 6 May 1990 | Spelthorne | 2 | 1 | Slight |
| Tue 8 May 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Fri 11 May 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 11 May 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Fri 11 May 1990 | Richmond upon Thames | 3 | 1 | Slight |
| Sat 12 May 1990 | Hounslow | 2 | 2 | Serious |
| Mon 14 May 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 15 May 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 15 May 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 19 May 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 19 May 1990 | Richmond upon Thames | 2 | 2 | Serious |
| Mon 21 May 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 22 May 1990 | Hounslow | 1 | 1 | Slight |
| Wed 23 May 1990 | Hounslow | 2 | 1 | Slight |
| Thu 24 May 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 27 May 1990 | Hounslow | 1 | 1 | Serious |
| Thu 31 May 1990 | Richmond upon Thames | 2 | 1 | Serious |
| Sat 2 Jun 1990 | Richmond upon Thames | 2 | 1 | Serious |
| Tue 5 Jun 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 7 Jun 1990 | Hounslow | 2 | 2 | Slight |
| Fri 8 Jun 1990 | Spelthorne | 2 | 1 | Slight |
| Wed 20 Jun 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 21 Jun 1990 | Hounslow | 2 | 1 | Slight |
| Sat 23 Jun 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 25 Jun 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 28 Jun 1990 | Hounslow | 1 | 3 | Serious |
| Sat 30 Jun 1990 | Richmond upon Thames | 3 | 1 | Slight |
| Sun 1 Jul 1990 | Hounslow | 1 | 1 | Slight |
| Sun 1 Jul 1990 | Hounslow | 1 | 1 | Slight |
| Sun 1 Jul 1990 | Hounslow | 1 | 1 | Slight |
| Sun 1 Jul 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 3 Jul 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 4 Jul 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 4 Jul 1990 | Richmond upon Thames | 1 | 1 | Serious |
| Fri 6 Jul 1990 | Richmond upon Thames | 4 | 1 | Serious |
| Tue 10 Jul 1990 | Hounslow | 2 | 1 | Slight |
| Fri 13 Jul 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 16 Jul 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Thu 19 Jul 1990 | Hounslow | 2 | 1 | Slight |
| Fri 20 Jul 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 21 Jul 1990 | Hounslow | 2 | 1 | Slight |
| Sun 22 Jul 1990 | Richmond upon Thames | 1 | 2 | Serious |
| Mon 23 Jul 1990 | Hounslow | 2 | 1 | Slight |
| Tue 24 Jul 1990 | Hounslow | 2 | 1 | Slight |
| Wed 25 Jul 1990 | Hounslow | 2 | 1 | Slight |
| Thu 26 Jul 1990 | Richmond upon Thames | 2 | 2 | Slight |
| Thu 26 Jul 1990 | Hounslow | 2 | 1 | Slight |
| Wed 1 Aug 1990 | Spelthorne | 2 | 1 | Slight |
| Wed 1 Aug 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Wed 1 Aug 1990 | Hounslow | 2 | 1 | Serious |
| Sat 4 Aug 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 4 Aug 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 4 Aug 1990 | Richmond upon Thames | 2 | 2 | Slight |
| Wed 8 Aug 1990 | Hounslow | 2 | 1 | Slight |
| Fri 10 Aug 1990 | Hounslow | 2 | 1 | Slight |
| Sun 12 Aug 1990 | Richmond upon Thames | 2 | 1 | Serious |
| Tue 14 Aug 1990 | Hounslow | 2 | 1 | Slight |
| Wed 15 Aug 1990 | Richmond upon Thames | 3 | 1 | Slight |
| Mon 20 Aug 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Mon 27 Aug 1990 | Hounslow | 2 | 1 | Serious |
| Tue 28 Aug 1990 | Richmond upon Thames | 3 | 1 | Slight |
| Thu 30 Aug 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 30 Aug 1990 | Hounslow | 3 | 1 | Slight |
| Fri 31 Aug 1990 | Hounslow | 2 | 1 | Serious |
| Fri 31 Aug 1990 | Richmond upon Thames | 2 | 2 | Slight |
| Sun 2 Sep 1990 | Spelthorne | 1 | 1 | Slight |
| Mon 3 Sep 1990 | Hounslow | 2 | 4 | Slight |
| Fri 7 Sep 1990 | Spelthorne | 2 | 1 | Slight |
| Sat 8 Sep 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 13 Sep 1990 | Richmond upon Thames | 2 | 1 | Serious |
| Sat 15 Sep 1990 | Richmond upon Thames | 3 | 1 | Slight |
| Mon 17 Sep 1990 | Hounslow | 2 | 1 | Serious |
| Fri 21 Sep 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 21 Sep 1990 | Hounslow | 2 | 1 | Slight |
| Tue 25 Sep 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Thu 27 Sep 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 29 Sep 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 29 Sep 1990 | Richmond upon Thames | 2 | 5 | Slight |
| Tue 2 Oct 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 7 Oct 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 11 Oct 1990 | Richmond upon Thames | 3 | 1 | Slight |
| Mon 15 Oct 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Tue 16 Oct 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 18 Oct 1990 | Richmond upon Thames | 1 | 2 | Slight |
| Fri 19 Oct 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 24 Oct 1990 | Hounslow | 1 | 1 | Serious |
| Tue 30 Oct 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Thu 1 Nov 1990 | Spelthorne | 2 | 1 | Slight |
| Thu 1 Nov 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 2 Nov 1990 | Hounslow | 1 | 1 | Slight |
| Tue 6 Nov 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 7 Nov 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Fri 9 Nov 1990 | Hounslow | 2 | 1 | Serious |
| Mon 12 Nov 1990 | Hounslow | 2 | 1 | Slight |
| Mon 12 Nov 1990 | Richmond upon Thames | 1 | 1 | Slight |
| Thu 15 Nov 1990 | Hounslow | 3 | 1 | Slight |
| Sun 18 Nov 1990 | Hounslow | 1 | 1 | Serious |
| Mon 19 Nov 1990 | Hounslow | 2 | 1 | Slight |
| Tue 20 Nov 1990 | Richmond upon Thames | 1 | 1 | Serious |
| Wed 21 Nov 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 22 Nov 1990 | Hounslow | 1 | 1 | Slight |
| Thu 22 Nov 1990 | Hounslow | 1 | 1 | Slight |
| Fri 23 Nov 1990 | Richmond upon Thames | 2 | 2 | Serious |
| Fri 23 Nov 1990 | Spelthorne | 2 | 1 | Slight |
| Tue 27 Nov 1990 | Hounslow | 1 | 1 | Slight |
| Tue 27 Nov 1990 | Hounslow | 3 | 2 | Serious |
| Wed 28 Nov 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 30 Nov 1990 | Spelthorne | 2 | 1 | Slight |
| Sat 8 Dec 1990 | Richmond upon Thames | 1 | 2 | Slight |
| Tue 11 Dec 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 11 Dec 1990 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 14 Dec 1990 | Hounslow | 2 | 1 | Slight |
| Sun 16 Dec 1990 | Richmond upon Thames | 1 | 1 | Serious |
| Sun 16 Dec 1990 | Richmond upon Thames | 2 | 2 | Slight |
| Mon 17 Dec 1990 | Hounslow | 2 | 1 | Slight |
| Wed 19 Dec 1990 | Hounslow | 1 | 1 | Slight |
| Wed 26 Dec 1990 | Richmond upon Thames | 1 | 1 | Fatal |
| Sun 30 Dec 1990 | Hounslow | 1 | 2 | Serious |