Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 3 Jan 1991 | Daventry | 3 | 2 | Slight |
| Sun 6 Jan 1991 | Northampton | 2 | 1 | Slight |
| Tue 8 Jan 1991 | South Northamptonshire | 3 | 1 | Slight |
| Tue 8 Jan 1991 | South Northamptonshire | 2 | 1 | Slight |
| Wed 9 Jan 1991 | Northampton | 1 | 1 | Serious |
| Fri 11 Jan 1991 | South Northamptonshire | 2 | 2 | Slight |
| Sat 12 Jan 1991 | Northampton | 2 | 3 | Slight |
| Sat 12 Jan 1991 | Northampton | 2 | 1 | Slight |
| Sun 13 Jan 1991 | South Northamptonshire | 1 | 1 | Slight |
| Mon 14 Jan 1991 | Northampton | 1 | 5 | Serious |
| Mon 14 Jan 1991 | Northampton | 2 | 1 | Slight |
| Mon 14 Jan 1991 | South Northamptonshire | 3 | 1 | Slight |
| Mon 14 Jan 1991 | Northampton | 3 | 1 | Slight |
| Tue 15 Jan 1991 | Northampton | 2 | 1 | Slight |
| Mon 21 Jan 1991 | Northampton | 4 | 1 | Slight |
| Mon 21 Jan 1991 | South Northamptonshire | 2 | 2 | Slight |
| Mon 21 Jan 1991 | Northampton | 1 | 1 | Slight |
| Thu 24 Jan 1991 | Northampton | 1 | 1 | Slight |
| Fri 25 Jan 1991 | Daventry | 2 | 2 | Slight |
| Sat 26 Jan 1991 | Northampton | 2 | 1 | Slight |
| Sun 27 Jan 1991 | Daventry | 2 | 1 | Slight |
| Fri 1 Feb 1991 | Northampton | 1 | 1 | Slight |
| Sat 2 Feb 1991 | Daventry | 1 | 4 | Slight |
| Mon 4 Feb 1991 | South Northamptonshire | 1 | 1 | Slight |
| Mon 4 Feb 1991 | Northampton | 1 | 2 | Serious |
| Tue 5 Feb 1991 | Northampton | 2 | 1 | Serious |
| Thu 7 Feb 1991 | Northampton | 2 | 1 | Slight |
| Sun 24 Feb 1991 | Daventry | 1 | 1 | Serious |
| Mon 25 Feb 1991 | Northampton | 2 | 1 | Slight |
| Tue 26 Feb 1991 | Daventry | 2 | 1 | Slight |
| Tue 26 Feb 1991 | South Northamptonshire | 3 | 2 | Slight |
| Fri 1 Mar 1991 | Northampton | 1 | 1 | Slight |
| Sat 2 Mar 1991 | South Northamptonshire | 1 | 1 | Slight |
| Sat 2 Mar 1991 | Northampton | 2 | 1 | Slight |
| Tue 5 Mar 1991 | Northampton | 1 | 1 | Slight |
| Tue 5 Mar 1991 | Northampton | 2 | 1 | Serious |
| Thu 7 Mar 1991 | Northampton | 2 | 1 | Slight |
| Sun 10 Mar 1991 | South Northamptonshire | 2 | 1 | Slight |
| Mon 11 Mar 1991 | Northampton | 2 | 1 | Slight |
| Mon 11 Mar 1991 | Northampton | 2 | 1 | Slight |
| Fri 22 Mar 1991 | Northampton | 3 | 1 | Serious |
| Fri 22 Mar 1991 | Daventry | 1 | 1 | Slight |
| Sat 23 Mar 1991 | Northampton | 2 | 1 | Slight |
| Mon 25 Mar 1991 | South Northamptonshire | 2 | 1 | Serious |
| Mon 25 Mar 1991 | Northampton | 2 | 1 | Slight |
| Sun 7 Apr 1991 | Northampton | 2 | 1 | Slight |
| Mon 8 Apr 1991 | Daventry | 1 | 1 | Slight |
| Tue 9 Apr 1991 | Northampton | 1 | 1 | Slight |
| Mon 15 Apr 1991 | South Northamptonshire | 3 | 5 | Fatal |
| Fri 19 Apr 1991 | Northampton | 2 | 1 | Slight |
| Sat 20 Apr 1991 | Northampton | 2 | 1 | Slight |
| Mon 22 Apr 1991 | Northampton | 2 | 1 | Slight |
| Thu 25 Apr 1991 | Northampton | 1 | 1 | Slight |
| Fri 3 May 1991 | South Northamptonshire | 1 | 3 | Slight |
| Sat 4 May 1991 | Northampton | 1 | 1 | Slight |
| Sun 5 May 1991 | Northampton | 2 | 1 | Serious |
| Tue 7 May 1991 | Northampton | 2 | 1 | Slight |
| Sun 12 May 1991 | Northampton | 2 | 1 | Slight |
| Tue 14 May 1991 | Northampton | 1 | 1 | Slight |
| Sat 18 May 1991 | Northampton | 2 | 2 | Slight |
| Mon 20 May 1991 | South Northamptonshire | 2 | 4 | Slight |
| Mon 20 May 1991 | Northampton | 2 | 1 | Slight |
| Tue 21 May 1991 | South Northamptonshire | 2 | 1 | Slight |
| Sun 26 May 1991 | Northampton | 3 | 3 | Slight |
| Sun 26 May 1991 | Northampton | 3 | 3 | Slight |
| Sat 1 Jun 1991 | Daventry | 3 | 1 | Slight |
| Mon 3 Jun 1991 | South Northamptonshire | 2 | 1 | Serious |
| Sun 9 Jun 1991 | Daventry | 2 | 1 | Slight |
| Mon 10 Jun 1991 | Northampton | 2 | 1 | Slight |
| Mon 10 Jun 1991 | Northampton | 2 | 1 | Slight |
| Tue 11 Jun 1991 | Northampton | 1 | 1 | Serious |
| Wed 12 Jun 1991 | Northampton | 1 | 2 | Slight |
| Fri 14 Jun 1991 | South Northamptonshire | 2 | 1 | Slight |
| Fri 14 Jun 1991 | Northampton | 2 | 1 | Slight |
| Tue 18 Jun 1991 | Northampton | 2 | 1 | Slight |
| Wed 19 Jun 1991 | Northampton | 2 | 1 | Slight |
| Wed 19 Jun 1991 | Northampton | 2 | 2 | Slight |
| Thu 20 Jun 1991 | South Northamptonshire | 2 | 1 | Slight |
| Fri 21 Jun 1991 | South Northamptonshire | 2 | 1 | Slight |
| Sun 23 Jun 1991 | South Northamptonshire | 1 | 1 | Serious |
| Mon 24 Jun 1991 | Daventry | 1 | 1 | Serious |
| Fri 5 Jul 1991 | Daventry | 2 | 1 | Slight |
| Tue 9 Jul 1991 | Northampton | 2 | 1 | Slight |
| Thu 11 Jul 1991 | Daventry | 2 | 3 | Slight |
| Thu 11 Jul 1991 | Daventry | 2 | 1 | Slight |
| Sun 14 Jul 1991 | South Northamptonshire | 3 | 2 | Serious |
| Sun 14 Jul 1991 | South Northamptonshire | 2 | 1 | Slight |
| Tue 16 Jul 1991 | Daventry | 2 | 1 | Slight |
| Mon 29 Jul 1991 | Daventry | 2 | 1 | Slight |
| Tue 30 Jul 1991 | Northampton | 2 | 1 | Slight |
| Wed 31 Jul 1991 | Daventry | 2 | 3 | Serious |
| Wed 31 Jul 1991 | Northampton | 2 | 2 | Slight |
| Fri 2 Aug 1991 | Daventry | 1 | 1 | Serious |
| Sat 3 Aug 1991 | South Northamptonshire | 2 | 3 | Slight |
| Mon 5 Aug 1991 | Northampton | 2 | 1 | Slight |
| Wed 7 Aug 1991 | Northampton | 1 | 1 | Slight |
| Fri 9 Aug 1991 | Daventry | 2 | 2 | Slight |
| Mon 12 Aug 1991 | Daventry | 2 | 3 | Slight |
| Thu 15 Aug 1991 | Northampton | 2 | 1 | Slight |
| Sat 17 Aug 1991 | Daventry | 2 | 4 | Serious |
| Mon 26 Aug 1991 | Northampton | 2 | 1 | Serious |
| Tue 27 Aug 1991 | Harborough | 2 | 2 | Slight |
| Thu 29 Aug 1991 | Northampton | 2 | 1 | Slight |
| Thu 29 Aug 1991 | Daventry | 3 | 1 | Slight |
| Fri 30 Aug 1991 | Northampton | 1 | 2 | Slight |
| Fri 30 Aug 1991 | South Northamptonshire | 1 | 1 | Serious |
| Wed 4 Sep 1991 | Northampton | 1 | 2 | Slight |
| Wed 4 Sep 1991 | Harborough | 2 | 1 | Serious |
| Sat 7 Sep 1991 | South Northamptonshire | 8 | 5 | Serious |
| Wed 11 Sep 1991 | Northampton | 2 | 1 | Slight |
| Thu 12 Sep 1991 | Northampton | 1 | 1 | Slight |
| Mon 16 Sep 1991 | Northampton | 1 | 1 | Slight |
| Tue 17 Sep 1991 | Northampton | 2 | 1 | Slight |
| Tue 24 Sep 1991 | South Northamptonshire | 1 | 1 | Slight |
| Wed 25 Sep 1991 | Northampton | 3 | 2 | Slight |
| Sat 28 Sep 1991 | Northampton | 2 | 1 | Slight |
| Sun 29 Sep 1991 | Northampton | 2 | 2 | Slight |
| Tue 1 Oct 1991 | Northampton | 2 | 1 | Slight |
| Wed 2 Oct 1991 | Northampton | 2 | 1 | Slight |
| Tue 8 Oct 1991 | Northampton | 2 | 2 | Slight |
| Mon 14 Oct 1991 | Northampton | 2 | 1 | Slight |
| Tue 15 Oct 1991 | Northampton | 2 | 1 | Slight |
| Wed 16 Oct 1991 | Northampton | 1 | 1 | Fatal |
| Sat 19 Oct 1991 | Northampton | 1 | 1 | Slight |
| Tue 22 Oct 1991 | Northampton | 3 | 2 | Slight |
| Sun 27 Oct 1991 | Northampton | 3 | 2 | Serious |
| Fri 1 Nov 1991 | Northampton | 1 | 2 | Slight |
| Fri 1 Nov 1991 | Northampton | 3 | 1 | Slight |
| Fri 1 Nov 1991 | Northampton | 3 | 1 | Slight |
| Sun 3 Nov 1991 | Northampton | 2 | 3 | Slight |
| Sun 3 Nov 1991 | South Northamptonshire | 1 | 2 | Slight |
| Mon 11 Nov 1991 | South Northamptonshire | 2 | 2 | Slight |
| Mon 11 Nov 1991 | South Northamptonshire | 2 | 1 | Slight |
| Tue 12 Nov 1991 | Northampton | 1 | 1 | Fatal |
| Wed 13 Nov 1991 | Northampton | 2 | 1 | Slight |
| Wed 13 Nov 1991 | South Northamptonshire | 2 | 3 | Fatal |
| Sat 16 Nov 1991 | Northampton | 2 | 1 | Slight |
| Sun 17 Nov 1991 | Northampton | 2 | 1 | Slight |
| Mon 18 Nov 1991 | Northampton | 1 | 1 | Slight |
| Tue 19 Nov 1991 | Northampton | 2 | 1 | Slight |
| Sun 24 Nov 1991 | South Northamptonshire | 1 | 1 | Slight |
| Sun 24 Nov 1991 | Northampton | 2 | 3 | Slight |
| Mon 25 Nov 1991 | Northampton | 2 | 1 | Slight |
| Tue 26 Nov 1991 | South Northamptonshire | 2 | 2 | Slight |
| Sun 1 Dec 1991 | Northampton | 2 | 3 | Slight |
| Mon 2 Dec 1991 | South Northamptonshire | 2 | 1 | Slight |
| Tue 10 Dec 1991 | Northampton | 2 | 2 | Slight |
| Thu 12 Dec 1991 | Northampton | 2 | 1 | Slight |
| Wed 18 Dec 1991 | Northampton | 2 | 1 | Slight |
| Tue 24 Dec 1991 | Northampton | 1 | 1 | Slight |
| Tue 24 Dec 1991 | Northampton | 2 | 1 | Serious |
| Sat 28 Dec 1991 | Northampton | 3 | 1 | Slight |
| Tue 31 Dec 1991 | South Northamptonshire | 2 | 1 | Slight |
| Tue 31 Dec 1991 | Northampton | 1 | 1 | Slight |