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