Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Mon 2 Jan 1984 | Durham | 1 | 2 | Serious |
| Tue 3 Jan 1984 | Darlington | 1 | 1 | Slight |
| Fri 13 Jan 1984 | Hambleton | 1 | 2 | Slight |
| Sun 15 Jan 1984 | Sedgefield | 2 | 1 | Slight |
| Mon 16 Jan 1984 | Sedgefield | 2 | 2 | Serious |
| Tue 17 Jan 1984 | Darlington | 1 | 1 | Serious |
| Tue 17 Jan 1984 | Durham | 1 | 2 | Slight |
| Wed 18 Jan 1984 | Darlington | 3 | 1 | Slight |
| Fri 20 Jan 1984 | Sedgefield | 3 | 2 | Serious |
| Fri 20 Jan 1984 | Chester-le-Street | 2 | 1 | Slight |
| Sat 21 Jan 1984 | Sedgefield | 2 | 1 | Slight |
| Sat 21 Jan 1984 | Hambleton | 1 | 1 | Serious |
| Sat 21 Jan 1984 | Hambleton | 1 | 1 | Serious |
| Mon 23 Jan 1984 | Sedgefield | 1 | 1 | Serious |
| Fri 27 Jan 1984 | Hambleton | 1 | 1 | Serious |
| Fri 27 Jan 1984 | Sedgefield | 2 | 2 | Slight |
| Sat 28 Jan 1984 | Sedgefield | 2 | 2 | Serious |
| Sat 4 Feb 1984 | Sedgefield | 1 | 1 | Serious |
| Sun 5 Feb 1984 | Hambleton | 2 | 2 | Slight |
| Mon 6 Feb 1984 | Durham | 1 | 1 | Slight |
| Tue 7 Feb 1984 | Sedgefield | 2 | 1 | Serious |
| Thu 9 Feb 1984 | Darlington | 2 | 1 | Serious |
| Fri 17 Feb 1984 | Darlington | 2 | 1 | Slight |
| Sun 26 Feb 1984 | Sedgefield | 1 | 1 | Slight |
| Sun 26 Feb 1984 | Durham | 2 | 1 | Slight |
| Fri 2 Mar 1984 | Hambleton | 1 | 1 | Serious |
| Sun 11 Mar 1984 | Darlington | 2 | 4 | Slight |
| Tue 13 Mar 1984 | Darlington | 1 | 1 | Serious |
| Fri 16 Mar 1984 | Durham | 2 | 2 | Serious |
| Tue 27 Mar 1984 | Hambleton | 4 | 1 | Slight |
| Fri 30 Mar 1984 | Darlington | 1 | 2 | Slight |
| Fri 30 Mar 1984 | Hambleton | 2 | 3 | Slight |
| Sat 31 Mar 1984 | Darlington | 1 | 1 | Slight |
| Mon 2 Apr 1984 | Chester-le-Street | 2 | 1 | Serious |
| Sat 7 Apr 1984 | Darlington | 2 | 1 | Slight |
| Thu 12 Apr 1984 | Chester-le-Street | 1 | 1 | Slight |
| Sat 21 Apr 1984 | Sedgefield | 1 | 1 | Slight |
| Sun 22 Apr 1984 | Sedgefield | 2 | 4 | Serious |
| Tue 24 Apr 1984 | Durham | 2 | 1 | Serious |
| Tue 8 May 1984 | Durham | 2 | 1 | Slight |
| Wed 9 May 1984 | Darlington | 2 | 1 | Slight |
| Thu 17 May 1984 | Darlington | 2 | 1 | Serious |
| Thu 24 May 1984 | Hambleton | 3 | 1 | Serious |
| Sat 26 May 1984 | Darlington | 1 | 1 | Serious |
| Mon 28 May 1984 | Durham | 1 | 1 | Slight |
| Mon 28 May 1984 | Chester-le-Street | 2 | 2 | Slight |
| Sat 9 Jun 1984 | Hambleton | 1 | 2 | Serious |
| Tue 12 Jun 1984 | Sedgefield | 1 | 1 | Slight |
| Thu 14 Jun 1984 | Darlington | 1 | 1 | Serious |
| Tue 19 Jun 1984 | Durham | 3 | 1 | Slight |
| Wed 20 Jun 1984 | Hambleton | 1 | 1 | Slight |
| Sat 23 Jun 1984 | Sedgefield | 2 | 1 | Serious |
| Tue 26 Jun 1984 | Durham | 2 | 1 | Slight |
| Fri 29 Jun 1984 | Chester-le-Street | 2 | 1 | Slight |
| Thu 5 Jul 1984 | Hambleton | 2 | 1 | Slight |
| Sat 7 Jul 1984 | Sedgefield | 1 | 1 | Slight |
| Fri 13 Jul 1984 | Durham | 2 | 1 | Slight |
| Wed 18 Jul 1984 | Hambleton | 3 | 1 | Slight |
| Wed 18 Jul 1984 | Sedgefield | 1 | 1 | Slight |
| Thu 19 Jul 1984 | Darlington | 1 | 1 | Slight |
| Thu 19 Jul 1984 | Sedgefield | 1 | 1 | Slight |
| Thu 19 Jul 1984 | Hambleton | 1 | 1 | Slight |
| Fri 20 Jul 1984 | Sedgefield | 1 | 1 | Serious |
| Mon 23 Jul 1984 | Darlington | 2 | 1 | Serious |
| Wed 25 Jul 1984 | Hambleton | 1 | 1 | Serious |
| Sat 28 Jul 1984 | Chester-le-Street | 1 | 1 | Slight |
| Sun 29 Jul 1984 | Sedgefield | 1 | 4 | Serious |
| Wed 1 Aug 1984 | Darlington | 1 | 1 | Slight |
| Thu 2 Aug 1984 | Chester-le-Street | 2 | 3 | Serious |
| Sun 19 Aug 1984 | Hambleton | 2 | 2 | Serious |
| Wed 22 Aug 1984 | Sedgefield | 2 | 1 | Slight |
| Thu 23 Aug 1984 | Darlington | 1 | 1 | Slight |
| Wed 29 Aug 1984 | Hambleton | 3 | 1 | Slight |
| Wed 29 Aug 1984 | Hambleton | 3 | 1 | Slight |
| Thu 30 Aug 1984 | Sedgefield | 1 | 1 | Serious |
| Sun 2 Sep 1984 | Darlington | 1 | 4 | Serious |
| Fri 7 Sep 1984 | Darlington | 2 | 1 | Slight |
| Fri 7 Sep 1984 | Durham | 4 | 5 | Slight |
| Fri 21 Sep 1984 | Hambleton | 3 | 1 | Serious |
| Sat 22 Sep 1984 | Darlington | 1 | 1 | Slight |
| Mon 24 Sep 1984 | Hambleton | 2 | 3 | Serious |
| Tue 25 Sep 1984 | Sedgefield | 1 | 1 | Slight |
| Wed 26 Sep 1984 | Hambleton | 2 | 1 | Slight |
| Fri 28 Sep 1984 | Wear Valley | 1 | 1 | Slight |
| Wed 3 Oct 1984 | Darlington | 1 | 2 | Slight |
| Wed 3 Oct 1984 | Durham | 1 | 4 | Slight |
| Wed 3 Oct 1984 | Durham | 2 | 1 | Serious |
| Fri 5 Oct 1984 | Sedgefield | 2 | 2 | Slight |
| Sat 6 Oct 1984 | Sedgefield | 2 | 1 | Slight |
| Tue 9 Oct 1984 | Chester-le-Street | 1 | 2 | Slight |
| Fri 12 Oct 1984 | Darlington | 2 | 1 | Serious |
| Sat 13 Oct 1984 | Hambleton | 1 | 1 | Slight |
| Tue 16 Oct 1984 | Darlington | 2 | 1 | Slight |
| Thu 18 Oct 1984 | Sedgefield | 1 | 2 | Slight |
| Thu 18 Oct 1984 | Hambleton | 1 | 1 | Slight |
| Tue 23 Oct 1984 | Sedgefield | 1 | 1 | Serious |
| Sat 27 Oct 1984 | Hambleton | 3 | 1 | Slight |
| Sun 28 Oct 1984 | Sedgefield | 2 | 1 | Slight |
| Wed 31 Oct 1984 | Sedgefield | 2 | 1 | Slight |
| Fri 2 Nov 1984 | Hambleton | 1 | 2 | Slight |
| Wed 7 Nov 1984 | Darlington | 1 | 1 | Slight |
| Fri 9 Nov 1984 | Darlington | 3 | 1 | Serious |
| Fri 9 Nov 1984 | Darlington | 3 | 2 | Serious |
| Sat 10 Nov 1984 | Durham | 2 | 2 | Slight |
| Sat 17 Nov 1984 | Richmondshire | 2 | 2 | Serious |
| Wed 21 Nov 1984 | Darlington | 4 | 1 | Slight |
| Thu 22 Nov 1984 | Darlington | 1 | 1 | Slight |
| Thu 22 Nov 1984 | Darlington | 2 | 1 | Slight |
| Tue 4 Dec 1984 | Darlington | 2 | 2 | Slight |
| Sat 8 Dec 1984 | Hambleton | 2 | 1 | Slight |
| Sun 9 Dec 1984 | Sedgefield | 1 | 1 | Serious |
| Thu 13 Dec 1984 | Durham | 2 | 1 | Slight |
| Sun 16 Dec 1984 | Durham | 1 | 1 | Serious |
| Mon 17 Dec 1984 | Durham | 2 | 1 | Slight |
| Tue 18 Dec 1984 | Sedgefield | 2 | 1 | Slight |
| Wed 19 Dec 1984 | Darlington | 3 | 1 | Slight |
| Thu 20 Dec 1984 | Sedgefield | 2 | 1 | Serious |
| Fri 21 Dec 1984 | Sedgefield | 2 | 2 | Fatal |
| Fri 21 Dec 1984 | Hambleton | 2 | 1 | Slight |
| Sat 22 Dec 1984 | Chester-le-Street | 2 | 1 | Slight |
| Sat 22 Dec 1984 | Hambleton | 2 | 1 | Slight |
| Tue 25 Dec 1984 | Durham | 1 | 2 | Fatal |
| Thu 27 Dec 1984 | Sedgefield | 1 | 2 | Slight |