Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 14 Jan 1980 | Purbeck | 1 | 1 | Slight |
| Mon 21 Jan 1980 | West Dorset | 2 | 1 | Serious |
| Wed 23 Jan 1980 | Purbeck | 2 | 1 | Serious |
| Sat 9 Feb 1980 | West Dorset | 2 | 1 | Serious |
| Sun 2 Mar 1980 | Purbeck | 1 | 1 | Slight |
| Mon 17 Mar 1980 | West Dorset | 3 | 1 | Slight |
| Tue 25 Mar 1980 | Purbeck | 2 | 1 | Slight |
| Wed 26 Mar 1980 | West Dorset | 2 | 1 | Slight |
| Thu 27 Mar 1980 | West Dorset | 2 | 1 | Slight |
| Fri 28 Mar 1980 | West Dorset | 2 | 2 | Serious |
| Mon 7 Apr 1980 | Purbeck | 2 | 1 | Slight |
| Tue 15 Apr 1980 | Purbeck | 2 | 1 | Slight |
| Thu 24 Apr 1980 | West Dorset | 1 | 1 | Serious |
| Thu 8 May 1980 | Purbeck | 2 | 1 | Serious |
| Thu 8 May 1980 | Purbeck | 2 | 2 | Slight |
| Sun 1 Jun 1980 | West Dorset | 2 | 1 | Serious |
| Mon 9 Jun 1980 | West Dorset | 2 | 2 | Serious |
| Fri 20 Jun 1980 | West Dorset | 2 | 4 | Slight |
| Thu 17 Jul 1980 | Purbeck | 2 | 1 | Serious |
| Sat 26 Jul 1980 | West Dorset | 2 | 1 | Slight |
| Tue 29 Jul 1980 | West Dorset | 2 | 1 | Slight |
| Thu 31 Jul 1980 | Purbeck | 2 | 1 | Slight |
| Fri 1 Aug 1980 | West Dorset | 1 | 2 | Serious |
| Thu 7 Aug 1980 | West Dorset | 2 | 1 | Serious |
| Thu 21 Aug 1980 | West Dorset | 1 | 1 | Slight |
| Fri 22 Aug 1980 | Purbeck | 1 | 1 | Fatal |
| Wed 27 Aug 1980 | West Dorset | 2 | 1 | Serious |
| Wed 3 Sep 1980 | Purbeck | 2 | 1 | Serious |
| Tue 23 Sep 1980 | West Dorset | 1 | 1 | Slight |
| Sun 28 Sep 1980 | West Dorset | 1 | 3 | Slight |
| Tue 7 Oct 1980 | West Dorset | 2 | 1 | Slight |
| Tue 7 Oct 1980 | West Dorset | 3 | 1 | Slight |
| Sun 12 Oct 1980 | Purbeck | 1 | 1 | Slight |
| Thu 16 Oct 1980 | West Dorset | 2 | 3 | Slight |
| Fri 17 Oct 1980 | West Dorset | 2 | 1 | Serious |
| Sat 18 Oct 1980 | West Dorset | 2 | 3 | Serious |
| Wed 22 Oct 1980 | West Dorset | 2 | 1 | Serious |
| Fri 24 Oct 1980 | Purbeck | 1 | 1 | Serious |
| Fri 24 Oct 1980 | West Dorset | 2 | 1 | Serious |
| Wed 29 Oct 1980 | Purbeck | 1 | 1 | Serious |
| Sat 15 Nov 1980 | West Dorset | 2 | 1 | Slight |
| Mon 24 Nov 1980 | Purbeck | 1 | 2 | Serious |
| Thu 27 Nov 1980 | West Dorset | 3 | 2 | Serious |
| Fri 28 Nov 1980 | West Dorset | 1 | 1 | Serious |
| Thu 11 Dec 1980 | Purbeck | 2 | 2 | Fatal |
| Wed 17 Dec 1980 | West Dorset | 2 | 2 | Slight |
| Sat 20 Dec 1980 | West Dorset | 1 | 1 | Serious |