Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 4 Jan 1989 | Hounslow | 3 | 1 | Slight |
| Thu 5 Jan 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 13 Jan 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 21 Jan 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Tue 24 Jan 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 26 Jan 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 3 Feb 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 12 Feb 1989 | Hounslow | 2 | 1 | Slight |
| Sun 19 Feb 1989 | Hounslow | 2 | 2 | Serious |
| Sat 25 Feb 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 27 Feb 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 4 Mar 1989 | Richmond upon Thames | 2 | 1 | Serious |
| Sat 4 Mar 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Mon 6 Mar 1989 | Richmond upon Thames | 2 | 4 | Serious |
| Mon 6 Mar 1989 | Richmond upon Thames | 2 | 4 | Serious |
| Wed 8 Mar 1989 | Hounslow | 2 | 1 | Slight |
| Fri 10 Mar 1989 | Hounslow | 2 | 1 | Slight |
| Fri 10 Mar 1989 | Hounslow | 2 | 1 | Slight |
| Fri 10 Mar 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 20 Mar 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 29 Mar 1989 | Richmond upon Thames | 1 | 1 | Serious |
| Sun 2 Apr 1989 | Richmond upon Thames | 2 | 1 | Serious |
| Tue 4 Apr 1989 | Richmond upon Thames | 2 | 1 | Serious |
| Thu 13 Apr 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 26 Apr 1989 | Richmond upon Thames | 2 | 2 | Slight |
| Tue 2 May 1989 | Hounslow | 2 | 1 | Serious |
| Tue 2 May 1989 | Hounslow | 2 | 1 | Slight |
| Sat 6 May 1989 | Hounslow | 2 | 3 | Serious |
| Sun 7 May 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 7 May 1989 | Richmond upon Thames | 2 | 1 | Serious |
| Thu 11 May 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 13 May 1989 | Hounslow | 2 | 1 | Slight |
| Sat 13 May 1989 | Hounslow | 1 | 1 | Slight |
| Thu 18 May 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 20 May 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 22 May 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 24 May 1989 | Richmond upon Thames | 2 | 1 | Fatal |
| Sat 27 May 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 29 May 1989 | Hounslow | 1 | 1 | Slight |
| Wed 14 Jun 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 15 Jun 1989 | Hounslow | 2 | 1 | Slight |
| Fri 16 Jun 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 20 Jun 1989 | Hounslow | 1 | 1 | Serious |
| Wed 21 Jun 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Thu 22 Jun 1989 | Hounslow | 1 | 1 | Slight |
| Sat 24 Jun 1989 | Richmond upon Thames | 1 | 2 | Serious |
| Tue 27 Jun 1989 | Hounslow | 1 | 1 | Serious |
| Tue 27 Jun 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Wed 28 Jun 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 29 Jun 1989 | Hounslow | 2 | 1 | Slight |
| Fri 14 Jul 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Tue 25 Jul 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 26 Jul 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 26 Jul 1989 | Hounslow | 2 | 1 | Slight |
| Fri 28 Jul 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Wed 2 Aug 1989 | Richmond upon Thames | 3 | 1 | Serious |
| Sat 5 Aug 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 10 Aug 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 15 Aug 1989 | Hounslow | 2 | 1 | Slight |
| Thu 17 Aug 1989 | Richmond upon Thames | 2 | 2 | Slight |
| Mon 21 Aug 1989 | Hounslow | 1 | 1 | Slight |
| Wed 23 Aug 1989 | Richmond upon Thames | 2 | 2 | Fatal |
| Fri 25 Aug 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 25 Aug 1989 | Hounslow | 2 | 2 | Slight |
| Sat 26 Aug 1989 | Hounslow | 1 | 1 | Slight |
| Tue 29 Aug 1989 | Hounslow | 2 | 1 | Slight |
| Wed 30 Aug 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Fri 1 Sep 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 2 Sep 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Wed 6 Sep 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Sun 10 Sep 1989 | Hounslow | 2 | 1 | Slight |
| Mon 11 Sep 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 13 Sep 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 13 Sep 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 14 Sep 1989 | Hounslow | 1 | 1 | Slight |
| Thu 21 Sep 1989 | Hounslow | 2 | 1 | Slight |
| Tue 26 Sep 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Tue 26 Sep 1989 | Richmond upon Thames | 2 | 1 | Serious |
| Fri 29 Sep 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 1 Oct 1989 | Hounslow | 1 | 1 | Slight |
| Wed 18 Oct 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Wed 18 Oct 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Mon 30 Oct 1989 | Hounslow | 2 | 1 | Slight |
| Wed 1 Nov 1989 | Richmond upon Thames | 2 | 1 | Serious |
| Thu 2 Nov 1989 | Hounslow | 1 | 1 | Slight |
| Thu 2 Nov 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 3 Nov 1989 | Hounslow | 2 | 1 | Slight |
| Sat 11 Nov 1989 | Hounslow | 2 | 1 | Slight |
| Sat 11 Nov 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 11 Nov 1989 | Hounslow | 1 | 1 | Slight |
| Wed 15 Nov 1989 | Hounslow | 2 | 1 | Serious |
| Wed 22 Nov 1989 | Hounslow | 2 | 1 | Slight |
| Thu 23 Nov 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Thu 23 Nov 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 2 Dec 1989 | Hounslow | 2 | 1 | Slight |
| Tue 5 Dec 1989 | Richmond upon Thames | 2 | 1 | Serious |
| Tue 5 Dec 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 5 Dec 1989 | Richmond upon Thames | 2 | 1 | Serious |
| Tue 5 Dec 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 9 Dec 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 9 Dec 1989 | Hounslow | 1 | 1 | Slight |
| Mon 11 Dec 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 12 Dec 1989 | Hounslow | 2 | 2 | Slight |
| Wed 13 Dec 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Fri 15 Dec 1989 | Hounslow | 2 | 2 | Slight |
| Sat 16 Dec 1989 | Hounslow | 2 | 2 | Serious |
| Thu 21 Dec 1989 | Hounslow | 1 | 1 | Slight |
| Fri 22 Dec 1989 | Hounslow | 2 | 1 | Serious |
| Sat 23 Dec 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 23 Dec 1989 | Richmond upon Thames | 1 | 1 | Slight |
| Sat 23 Dec 1989 | Richmond upon Thames | 2 | 1 | Slight |
| Sun 31 Dec 1989 | Hounslow | 2 | 3 | Slight |