Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 4 Jan 1983 | Watford | 2 | 1 | Slight |
| Thu 6 Jan 1983 | Watford | 2 | 1 | Slight |
| Thu 6 Jan 1983 | Watford | 2 | 1 | Slight |
| Thu 6 Jan 1983 | Hertsmere | 2 | 1 | Slight |
| Thu 6 Jan 1983 | Hertsmere | 2 | 1 | Serious |
| Fri 7 Jan 1983 | Watford | 1 | 1 | Slight |
| Mon 10 Jan 1983 | Hertsmere | 2 | 1 | Slight |
| Wed 12 Jan 1983 | Three Rivers | 2 | 1 | Slight |
| Thu 13 Jan 1983 | Watford | 2 | 1 | Slight |
| Thu 13 Jan 1983 | Watford | 2 | 1 | Slight |
| Fri 14 Jan 1983 | Watford | 1 | 1 | Slight |
| Sun 16 Jan 1983 | Watford | 2 | 2 | Serious |
| Wed 19 Jan 1983 | Hertsmere | 2 | 2 | Serious |
| Fri 21 Jan 1983 | Watford | 2 | 1 | Slight |
| Sun 23 Jan 1983 | Hertsmere | 1 | 1 | Slight |
| Sun 23 Jan 1983 | Three Rivers | 2 | 2 | Slight |
| Fri 28 Jan 1983 | Watford | 1 | 1 | Serious |
| Sat 29 Jan 1983 | Watford | 3 | 1 | Serious |
| Mon 31 Jan 1983 | Barnet | 2 | 1 | Slight |
| Mon 31 Jan 1983 | Hertsmere | 2 | 1 | Slight |
| Mon 7 Feb 1983 | Barnet | 2 | 2 | Slight |
| Wed 9 Feb 1983 | Barnet | 2 | 1 | Slight |
| Fri 11 Feb 1983 | Watford | 3 | 1 | Slight |
| Fri 18 Feb 1983 | Hertsmere | 2 | 1 | Slight |
| Wed 23 Feb 1983 | Barnet | 2 | 1 | Serious |
| Thu 24 Feb 1983 | Hertsmere | 2 | 1 | Serious |
| Fri 4 Mar 1983 | Hertsmere | 2 | 1 | Serious |
| Sat 5 Mar 1983 | Hertsmere | 1 | 1 | Slight |
| Sun 20 Mar 1983 | Watford | 2 | 1 | Slight |
| Mon 21 Mar 1983 | Hertsmere | 2 | 1 | Slight |
| Wed 23 Mar 1983 | Hertsmere | 2 | 1 | Slight |
| Fri 25 Mar 1983 | Watford | 2 | 5 | Serious |
| Fri 25 Mar 1983 | Watford | 2 | 5 | Serious |
| Fri 25 Mar 1983 | Hertsmere | 2 | 1 | Slight |
| Fri 25 Mar 1983 | Hertsmere | 2 | 2 | Slight |
| Sat 26 Mar 1983 | Barnet | 2 | 1 | Slight |
| Wed 30 Mar 1983 | Hertsmere | 2 | 1 | Slight |
| Wed 30 Mar 1983 | Hertsmere | 2 | 1 | Slight |
| Mon 4 Apr 1983 | Watford | 1 | 2 | Serious |
| Tue 5 Apr 1983 | Hertsmere | 1 | 1 | Serious |
| Sat 9 Apr 1983 | Watford | 2 | 1 | Serious |
| Mon 11 Apr 1983 | Barnet | 2 | 1 | Slight |
| Mon 11 Apr 1983 | Hertsmere | 2 | 2 | Slight |
| Tue 12 Apr 1983 | Watford | 2 | 1 | Slight |
| Tue 12 Apr 1983 | Watford | 2 | 1 | Slight |
| Wed 13 Apr 1983 | Barnet | 1 | 1 | Serious |
| Thu 14 Apr 1983 | Watford | 2 | 1 | Slight |
| Sat 16 Apr 1983 | Watford | 2 | 1 | Slight |
| Mon 18 Apr 1983 | Hertsmere | 2 | 5 | Serious |
| Fri 22 Apr 1983 | Watford | 1 | 1 | Serious |
| Sat 23 Apr 1983 | Watford | 2 | 1 | Slight |
| Sat 23 Apr 1983 | Hertsmere | 3 | 2 | Slight |
| Mon 25 Apr 1983 | Three Rivers | 2 | 1 | Slight |
| Tue 26 Apr 1983 | Watford | 2 | 1 | Slight |
| Tue 26 Apr 1983 | Hertsmere | 1 | 1 | Serious |
| Fri 29 Apr 1983 | Hertsmere | 2 | 1 | Slight |
| Fri 29 Apr 1983 | Hertsmere | 2 | 1 | Slight |
| Sun 1 May 1983 | Hertsmere | 1 | 1 | Slight |
| Wed 4 May 1983 | Hertsmere | 1 | 4 | Slight |
| Wed 11 May 1983 | Hertsmere | 1 | 2 | Slight |
| Sun 15 May 1983 | Watford | 1 | 1 | Serious |
| Sun 15 May 1983 | Watford | 1 | 1 | Serious |
| Sat 21 May 1983 | Hertsmere | 2 | 1 | Slight |
| Sun 22 May 1983 | Hertsmere | 2 | 1 | Slight |
| Sun 22 May 1983 | Hertsmere | 1 | 1 | Serious |
| Tue 24 May 1983 | Barnet | 1 | 1 | Slight |
| Sun 29 May 1983 | Barnet | 1 | 1 | Slight |
| Mon 30 May 1983 | Barnet | 2 | 1 | Slight |
| Mon 30 May 1983 | Three Rivers | 2 | 2 | Serious |
| Wed 1 Jun 1983 | Barnet | 2 | 1 | Slight |
| Wed 1 Jun 1983 | Hertsmere | 1 | 1 | Slight |
| Wed 8 Jun 1983 | Barnet | 1 | 2 | Slight |
| Wed 8 Jun 1983 | Hertsmere | 2 | 2 | Slight |
| Tue 14 Jun 1983 | Watford | 2 | 1 | Slight |
| Thu 16 Jun 1983 | Hertsmere | 2 | 2 | Serious |
| Mon 20 Jun 1983 | Watford | 2 | 1 | Slight |
| Mon 20 Jun 1983 | Hertsmere | 1 | 1 | Slight |
| Wed 22 Jun 1983 | Hertsmere | 2 | 2 | Slight |
| Wed 22 Jun 1983 | Barnet | 2 | 1 | Slight |
| Thu 23 Jun 1983 | Hertsmere | 1 | 1 | Slight |
| Sat 25 Jun 1983 | Watford | 2 | 1 | Slight |
| Mon 27 Jun 1983 | Barnet | 1 | 1 | Slight |
| Mon 27 Jun 1983 | Hertsmere | 2 | 2 | Slight |
| Tue 28 Jun 1983 | Watford | 1 | 1 | Slight |
| Thu 30 Jun 1983 | Watford | 2 | 1 | Serious |
| Sat 2 Jul 1983 | Hertsmere | 2 | 1 | Slight |
| Wed 6 Jul 1983 | Watford | 1 | 1 | Slight |
| Thu 7 Jul 1983 | Hertsmere | 2 | 1 | Slight |
| Thu 7 Jul 1983 | Three Rivers | 2 | 1 | Slight |
| Sun 10 Jul 1983 | Hertsmere | 2 | 1 | Slight |
| Wed 13 Jul 1983 | Barnet | 2 | 1 | Slight |
| Thu 14 Jul 1983 | Barnet | 1 | 1 | Slight |
| Wed 20 Jul 1983 | Barnet | 2 | 1 | Slight |
| Tue 26 Jul 1983 | Watford | 2 | 1 | Slight |
| Tue 26 Jul 1983 | Watford | 1 | 2 | Fatal |
| Wed 27 Jul 1983 | Barnet | 2 | 1 | Slight |
| Wed 27 Jul 1983 | Watford | 2 | 2 | Slight |
| Wed 27 Jul 1983 | Hertsmere | 3 | 3 | Serious |
| Fri 29 Jul 1983 | Watford | 2 | 1 | Slight |
| Sun 31 Jul 1983 | Watford | 2 | 1 | Slight |
| Tue 2 Aug 1983 | Watford | 1 | 1 | Slight |
| Thu 4 Aug 1983 | Watford | 2 | 1 | Serious |
| Sat 6 Aug 1983 | Watford | 2 | 1 | Slight |
| Wed 10 Aug 1983 | Barnet | 2 | 1 | Slight |
| Sat 13 Aug 1983 | Watford | 3 | 1 | Slight |
| Sat 27 Aug 1983 | Barnet | 2 | 1 | Slight |
| Sat 27 Aug 1983 | Barnet | 2 | 1 | Slight |
| Sat 27 Aug 1983 | Watford | 2 | 1 | Serious |
| Mon 29 Aug 1983 | Hertsmere | 2 | 1 | Slight |
| Sun 4 Sep 1983 | Barnet | 1 | 1 | Slight |
| Sun 4 Sep 1983 | Hertsmere | 2 | 1 | Slight |
| Sun 4 Sep 1983 | Hertsmere | 2 | 2 | Slight |
| Tue 6 Sep 1983 | City of London | 1 | 1 | Slight |
| Thu 8 Sep 1983 | Barnet | 2 | 1 | Slight |
| Fri 9 Sep 1983 | Barnet | 2 | 1 | Slight |
| Sat 10 Sep 1983 | Watford | 2 | 1 | Slight |
| Tue 13 Sep 1983 | Barnet | 1 | 1 | Slight |
| Tue 13 Sep 1983 | Barnet | 2 | 1 | Slight |
| Sun 18 Sep 1983 | Watford | 1 | 1 | Serious |
| Tue 20 Sep 1983 | Barnet | 2 | 1 | Slight |
| Fri 23 Sep 1983 | Watford | 2 | 1 | Slight |
| Sun 25 Sep 1983 | Barnet | 2 | 1 | Slight |
| Mon 26 Sep 1983 | Three Rivers | 2 | 1 | Slight |
| Thu 29 Sep 1983 | Barnet | 2 | 1 | Slight |
| Sat 1 Oct 1983 | Three Rivers | 2 | 1 | Slight |
| Mon 3 Oct 1983 | Watford | 2 | 1 | Slight |
| Wed 5 Oct 1983 | Watford | 1 | 1 | Slight |
| Wed 5 Oct 1983 | Barnet | 2 | 1 | Serious |
| Thu 6 Oct 1983 | Hertsmere | 2 | 1 | Slight |
| Fri 7 Oct 1983 | Watford | 1 | 1 | Serious |
| Sat 8 Oct 1983 | Hertsmere | 2 | 2 | Serious |
| Mon 10 Oct 1983 | Barnet | 2 | 1 | Serious |
| Mon 10 Oct 1983 | Barnet | 2 | 1 | Serious |
| Thu 13 Oct 1983 | Watford | 2 | 3 | Slight |
| Sat 15 Oct 1983 | Barnet | 1 | 1 | Slight |
| Wed 19 Oct 1983 | Barnet | 2 | 1 | Slight |
| Thu 20 Oct 1983 | Watford | 1 | 1 | Serious |
| Fri 21 Oct 1983 | Hertsmere | 3 | 2 | Slight |
| Tue 25 Oct 1983 | Barnet | 2 | 3 | Slight |
| Thu 27 Oct 1983 | Hertsmere | 2 | 2 | Serious |
| Fri 28 Oct 1983 | Watford | 1 | 1 | Slight |
| Sat 29 Oct 1983 | Hertsmere | 2 | 1 | Slight |
| Tue 1 Nov 1983 | Watford | 2 | 2 | Slight |
| Tue 1 Nov 1983 | Watford | 1 | 1 | Serious |
| Thu 3 Nov 1983 | Barnet | 2 | 1 | Slight |
| Fri 4 Nov 1983 | Hertsmere | 1 | 1 | Slight |
| Mon 7 Nov 1983 | Barnet | 2 | 1 | Slight |
| Wed 9 Nov 1983 | Watford | 1 | 1 | Slight |
| Wed 16 Nov 1983 | Watford | 2 | 1 | Slight |
| Wed 16 Nov 1983 | Barnet | 1 | 2 | Slight |
| Thu 17 Nov 1983 | Hertsmere | 1 | 1 | Slight |
| Thu 17 Nov 1983 | Barnet | 2 | 1 | Serious |
| Wed 23 Nov 1983 | Barnet | 1 | 1 | Slight |
| Thu 24 Nov 1983 | Hertsmere | 2 | 1 | Slight |
| Thu 24 Nov 1983 | Barnet | 2 | 1 | Slight |
| Sat 26 Nov 1983 | Watford | 2 | 1 | Slight |
| Mon 28 Nov 1983 | Watford | 1 | 1 | Slight |
| Sat 3 Dec 1983 | Barnet | 2 | 1 | Slight |
| Sun 4 Dec 1983 | Hertsmere | 1 | 1 | Slight |
| Mon 5 Dec 1983 | Watford | 2 | 1 | Serious |
| Mon 5 Dec 1983 | Watford | 1 | 1 | Slight |
| Tue 6 Dec 1983 | Hertsmere | 1 | 1 | Slight |
| Tue 6 Dec 1983 | Watford | 3 | 1 | Slight |
| Wed 7 Dec 1983 | Barnet | 1 | 1 | Serious |
| Wed 7 Dec 1983 | Barnet | 3 | 1 | Slight |
| Sat 10 Dec 1983 | Hertsmere | 1 | 1 | Slight |
| Mon 12 Dec 1983 | Barnet | 2 | 1 | Slight |
| Mon 12 Dec 1983 | Watford | 2 | 1 | Slight |
| Thu 15 Dec 1983 | Barnet | 2 | 1 | Slight |
| Fri 16 Dec 1983 | Barnet | 1 | 1 | Slight |
| Wed 21 Dec 1983 | Watford | 1 | 1 | Serious |
| Thu 22 Dec 1983 | Watford | 2 | 1 | Slight |
| Thu 22 Dec 1983 | Watford | 1 | 1 | Slight |
| Fri 23 Dec 1983 | Watford | 1 | 1 | Serious |
| Fri 23 Dec 1983 | Watford | 1 | 1 | Serious |
| Thu 29 Dec 1983 | Hertsmere | 1 | 1 | Slight |