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