Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 6 Jan 1999 | East Riding of Yorkshire | 3 | 2 | Slight |
| Mon 18 Jan 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Wed 3 Feb 1999 | East Riding of Yorkshire | 3 | 2 | Slight |
| Sun 14 Mar 1999 | East Riding of Yorkshire | 3 | 2 | Slight |
| Mon 29 Mar 1999 | East Riding of Yorkshire | 2 | 4 | Fatal |
| Fri 2 Apr 1999 | East Riding of Yorkshire | 3 | 1 | Slight |
| Tue 20 Apr 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Wed 21 Apr 1999 | East Riding of Yorkshire | 1 | 1 | Serious |
| Sun 2 May 1999 | East Riding of Yorkshire | 1 | 1 | Serious |
| Sun 9 May 1999 | East Riding of Yorkshire | 2 | 2 | Slight |
| Wed 26 May 1999 | East Riding of Yorkshire | 2 | 3 | Slight |
| Thu 27 May 1999 | East Riding of Yorkshire | 2 | 1 | Serious |
| Fri 4 Jun 1999 | East Riding of Yorkshire | 2 | 2 | Slight |
| Mon 14 Jun 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Mon 14 Jun 1999 | East Riding of Yorkshire | 2 | 2 | Slight |
| Sun 20 Jun 1999 | East Riding of Yorkshire | 4 | 1 | Slight |
| Fri 25 Jun 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Sat 10 Jul 1999 | East Riding of Yorkshire | 2 | 1 | Serious |
| Thu 29 Jul 1999 | East Riding of Yorkshire | 2 | 2 | Slight |
| Wed 11 Aug 1999 | East Riding of Yorkshire | 3 | 1 | Slight |
| Mon 16 Aug 1999 | East Riding of Yorkshire | 1 | 1 | Slight |
| Sat 11 Sep 1999 | East Riding of Yorkshire | 2 | 2 | Slight |
| Wed 15 Sep 1999 | East Riding of Yorkshire | 3 | 1 | Slight |
| Thu 16 Sep 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Mon 20 Sep 1999 | East Riding of Yorkshire | 2 | 2 | Slight |
| Wed 22 Sep 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Fri 8 Oct 1999 | East Riding of Yorkshire | 2 | 1 | Serious |
| Fri 22 Oct 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Thu 28 Oct 1999 | East Riding of Yorkshire | 2 | 2 | Serious |
| Wed 3 Nov 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Sat 6 Nov 1999 | East Riding of Yorkshire | 2 | 1 | Serious |
| Fri 12 Nov 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Fri 12 Nov 1999 | East Riding of Yorkshire | 2 | 1 | Slight |
| Mon 15 Nov 1999 | East Riding of Yorkshire | 2 | 2 | Slight |
| Thu 9 Dec 1999 | East Riding of Yorkshire | 1 | 1 | Slight |
| Sun 19 Dec 1999 | East Riding of Yorkshire | 3 | 1 | Slight |
| Thu 30 Dec 1999 | East Riding of Yorkshire | 2 | 4 | Slight |