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