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