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