Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 3 Jan 1998 | Hillingdon | 1 | 1 | Slight |
| Sun 11 Jan 1998 | Hillingdon | 2 | 1 | Serious |
| Wed 14 Jan 1998 | Hillingdon | 1 | 1 | Serious |
| Thu 22 Jan 1998 | Hillingdon | 2 | 1 | Slight |
| Fri 23 Jan 1998 | Hillingdon | 2 | 1 | Slight |
| Sat 24 Jan 1998 | Hillingdon | 2 | 1 | Slight |
| Wed 28 Jan 1998 | Hillingdon | 3 | 1 | Slight |
| Wed 28 Jan 1998 | Hillingdon | 1 | 2 | Slight |
| Fri 30 Jan 1998 | Harrow | 2 | 1 | Slight |
| Sun 1 Feb 1998 | Hillingdon | 2 | 2 | Serious |
| Sat 7 Feb 1998 | Hillingdon | 2 | 1 | Slight |
| Wed 25 Feb 1998 | Hillingdon | 2 | 2 | Slight |
| Sun 8 Mar 1998 | Hillingdon | 2 | 1 | Slight |
| Thu 19 Mar 1998 | Harrow | 2 | 1 | Slight |
| Thu 26 Mar 1998 | Hillingdon | 1 | 1 | Slight |
| Wed 8 Apr 1998 | Hillingdon | 2 | 1 | Slight |
| Wed 8 Apr 1998 | Hillingdon | 2 | 1 | Slight |
| Sun 12 Apr 1998 | Hillingdon | 3 | 4 | Serious |
| Mon 13 Apr 1998 | Hillingdon | 2 | 1 | Slight |
| Fri 1 May 1998 | Hillingdon | 2 | 1 | Slight |
| Fri 15 May 1998 | Hillingdon | 2 | 1 | Slight |
| Fri 15 May 1998 | Hillingdon | 2 | 1 | Slight |
| Mon 18 May 1998 | Hillingdon | 2 | 2 | Slight |
| Mon 18 May 1998 | Hillingdon | 2 | 2 | Slight |
| Tue 2 Jun 1998 | Hillingdon | 2 | 1 | Slight |
| Fri 12 Jun 1998 | Hillingdon | 2 | 1 | Slight |
| Thu 18 Jun 1998 | Hillingdon | 2 | 1 | Slight |
| Thu 18 Jun 1998 | Hillingdon | 2 | 1 | Slight |
| Tue 23 Jun 1998 | Hillingdon | 2 | 1 | Slight |
| Tue 14 Jul 1998 | Hillingdon | 1 | 1 | Slight |
| Sat 25 Jul 1998 | Hillingdon | 2 | 1 | Slight |
| Thu 30 Jul 1998 | Hillingdon | 2 | 1 | Slight |
| Tue 4 Aug 1998 | Hillingdon | 2 | 1 | Slight |
| Wed 5 Aug 1998 | Hillingdon | 3 | 1 | Slight |
| Thu 13 Aug 1998 | Hillingdon | 3 | 1 | Slight |
| Thu 20 Aug 1998 | Hillingdon | 1 | 1 | Slight |
| Mon 24 Aug 1998 | Hillingdon | 1 | 2 | Slight |
| Wed 2 Sep 1998 | Hillingdon | 2 | 2 | Slight |
| Wed 2 Sep 1998 | Hillingdon | 2 | 2 | Slight |
| Thu 3 Sep 1998 | Hillingdon | 2 | 1 | Slight |
| Sun 6 Sep 1998 | Hillingdon | 1 | 1 | Slight |
| Wed 9 Sep 1998 | Hillingdon | 2 | 2 | Slight |
| Fri 11 Sep 1998 | Hillingdon | 2 | 1 | Slight |
| Thu 17 Sep 1998 | Hillingdon | 3 | 2 | Serious |
| Fri 18 Sep 1998 | Hillingdon | 2 | 1 | Slight |
| Sat 26 Sep 1998 | Hillingdon | 2 | 1 | Slight |
| Sat 26 Sep 1998 | Hillingdon | 2 | 1 | Slight |
| Tue 13 Oct 1998 | Hillingdon | 2 | 1 | Slight |
| Mon 2 Nov 1998 | Hillingdon | 2 | 1 | Slight |
| Sun 8 Nov 1998 | Hillingdon | 2 | 1 | Slight |
| Mon 16 Nov 1998 | Hillingdon | 2 | 1 | Slight |
| Tue 8 Dec 1998 | Hillingdon | 2 | 1 | Slight |
| Tue 8 Dec 1998 | Hillingdon | 2 | 1 | Slight |
| Thu 10 Dec 1998 | Hillingdon | 2 | 1 | Slight |
| Sun 13 Dec 1998 | Hillingdon | 2 | 1 | Slight |
| Sun 20 Dec 1998 | Hillingdon | 1 | 1 | Slight |
| Tue 22 Dec 1998 | Hillingdon | 2 | 1 | Serious |