Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 2 Jan 1980 | Harrow | 1 | 1 | Serious |
| Sat 5 Jan 1980 | Harrow | 1 | 1 | Serious |
| Wed 9 Jan 1980 | Harrow | 3 | 2 | Slight |
| Thu 17 Jan 1980 | Harrow | 2 | 1 | Slight |
| Thu 17 Jan 1980 | Harrow | 1 | 1 | Serious |
| Sat 19 Jan 1980 | Harrow | 2 | 1 | Slight |
| Sun 20 Jan 1980 | Harrow | 2 | 1 | Slight |
| Tue 22 Jan 1980 | Harrow | 1 | 1 | Serious |
| Mon 28 Jan 1980 | Harrow | 2 | 1 | Slight |
| Tue 29 Jan 1980 | Harrow | 4 | 1 | Slight |
| Wed 30 Jan 1980 | Harrow | 2 | 1 | Slight |
| Tue 5 Feb 1980 | Harrow | 1 | 1 | Serious |
| Tue 5 Feb 1980 | Harrow | 1 | 1 | Slight |
| Wed 6 Feb 1980 | Harrow | 3 | 1 | Slight |
| Thu 7 Feb 1980 | Harrow | 2 | 2 | Slight |
| Sat 9 Feb 1980 | Harrow | 1 | 1 | Serious |
| Wed 12 Mar 1980 | Harrow | 2 | 1 | Slight |
| Wed 19 Mar 1980 | Harrow | 2 | 1 | Slight |
| Wed 26 Mar 1980 | Harrow | 2 | 1 | Slight |
| Wed 26 Mar 1980 | Harrow | 2 | 1 | Slight |
| Wed 26 Mar 1980 | Harrow | 2 | 1 | Slight |
| Tue 1 Apr 1980 | Harrow | 2 | 1 | Serious |
| Wed 2 Apr 1980 | Harrow | 2 | 1 | Serious |
| Tue 8 Apr 1980 | Harrow | 2 | 1 | Slight |
| Mon 21 Apr 1980 | Harrow | 1 | 1 | Slight |
| Fri 25 Apr 1980 | Harrow | 2 | 1 | Slight |
| Mon 19 May 1980 | Harrow | 2 | 1 | Slight |
| Tue 20 May 1980 | Harrow | 2 | 1 | Slight |
| Wed 21 May 1980 | Barnet | 1 | 1 | Slight |
| Sat 24 May 1980 | Harrow | 2 | 1 | Slight |
| Sat 24 May 1980 | Harrow | 1 | 1 | Slight |
| Wed 28 May 1980 | Harrow | 2 | 2 | Slight |
| Fri 30 May 1980 | Harrow | 1 | 1 | Slight |
| Mon 9 Jun 1980 | Stroud | 2 | 1 | Slight |
| Thu 12 Jun 1980 | Harrow | 2 | 2 | Slight |
| Wed 18 Jun 1980 | Harrow | 3 | 1 | Slight |
| Tue 24 Jun 1980 | Harrow | 1 | 1 | Slight |
| Tue 24 Jun 1980 | Harrow | 2 | 1 | Serious |
| Fri 27 Jun 1980 | Harrow | 2 | 1 | Slight |
| Sun 29 Jun 1980 | Harrow | 2 | 1 | Slight |
| Mon 7 Jul 1980 | Harrow | 2 | 1 | Slight |
| Tue 15 Jul 1980 | Harrow | 1 | 1 | Slight |
| Tue 15 Jul 1980 | Harrow | 3 | 1 | Slight |
| Thu 17 Jul 1980 | Harrow | 2 | 1 | Slight |
| Wed 30 Jul 1980 | Harrow | 2 | 3 | Slight |
| Thu 31 Jul 1980 | Harrow | 2 | 1 | Slight |
| Thu 31 Jul 1980 | Harrow | 3 | 1 | Slight |
| Fri 8 Aug 1980 | Harrow | 1 | 1 | Slight |
| Tue 12 Aug 1980 | Harrow | 3 | 3 | Slight |
| Tue 19 Aug 1980 | Harrow | 1 | 1 | Serious |
| Wed 20 Aug 1980 | Harrow | 2 | 1 | Slight |
| Fri 5 Sep 1980 | Harrow | 2 | 1 | Slight |
| Wed 10 Sep 1980 | Harrow | 4 | 2 | Fatal |
| Sat 13 Sep 1980 | Harrow | 1 | 2 | Slight |
| Mon 15 Sep 1980 | Harrow | 2 | 1 | Serious |
| Sat 4 Oct 1980 | Harrow | 3 | 1 | Slight |
| Mon 6 Oct 1980 | Harrow | 2 | 2 | Serious |
| Wed 8 Oct 1980 | Harrow | 1 | 1 | Slight |
| Sun 12 Oct 1980 | Harrow | 1 | 1 | Slight |
| Sun 19 Oct 1980 | Harrow | 1 | 1 | Slight |
| Thu 23 Oct 1980 | Harrow | 2 | 1 | Slight |
| Sun 26 Oct 1980 | Harrow | 2 | 1 | Slight |
| Mon 27 Oct 1980 | Harrow | 1 | 1 | Slight |
| Tue 28 Oct 1980 | Harrow | 2 | 3 | Slight |
| Wed 29 Oct 1980 | Harrow | 1 | 1 | Serious |
| Thu 30 Oct 1980 | Harrow | 1 | 1 | Slight |
| Sun 9 Nov 1980 | Harrow | 2 | 1 | Serious |
| Mon 10 Nov 1980 | Harrow | 1 | 1 | Slight |
| Fri 21 Nov 1980 | Harrow | 1 | 1 | Serious |
| Fri 21 Nov 1980 | Harrow | 2 | 2 | Slight |
| Mon 24 Nov 1980 | Harrow | 2 | 1 | Slight |
| Sat 29 Nov 1980 | Harrow | 1 | 1 | Slight |
| Sat 29 Nov 1980 | Harrow | 2 | 1 | Slight |
| Sat 29 Nov 1980 | Harrow | 2 | 1 | Slight |
| Fri 5 Dec 1980 | Harrow | 2 | 1 | Slight |
| Fri 5 Dec 1980 | Harrow | 1 | 1 | Serious |
| Sat 6 Dec 1980 | Harrow | 1 | 1 | Serious |
| Mon 8 Dec 1980 | Harrow | 2 | 1 | Slight |
| Wed 17 Dec 1980 | Barnet | 2 | 2 | Slight |
| Fri 19 Dec 1980 | Harrow | 1 | 1 | Slight |
| Sun 21 Dec 1980 | Harrow | 1 | 1 | Slight |