Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 20 Jan 1999 | Hillingdon | 2 | 1 | Slight |
| Fri 12 Feb 1999 | Hillingdon | 2 | 2 | Slight |
| Tue 23 Feb 1999 | Hillingdon | 3 | 1 | Slight |
| Thu 4 Mar 1999 | Hillingdon | 2 | 1 | Slight |
| Sat 13 Mar 1999 | Hillingdon | 2 | 1 | Slight |
| Mon 12 Apr 1999 | Hillingdon | 3 | 1 | Serious |
| Sun 23 May 1999 | Hillingdon | 3 | 2 | Serious |
| Thu 27 May 1999 | Hillingdon | 3 | 1 | Slight |
| Thu 1 Jul 1999 | Hillingdon | 1 | 1 | Slight |
| Wed 25 Aug 1999 | Hillingdon | 2 | 1 | Slight |
| Wed 25 Aug 1999 | Hillingdon | 2 | 2 | Slight |
| Tue 5 Oct 1999 | Hillingdon | 2 | 3 | Serious |
| Wed 17 Nov 1999 | Hillingdon | 2 | 1 | Slight |
| Tue 30 Nov 1999 | Hillingdon | 2 | 1 | Slight |
| Wed 1 Dec 1999 | Hillingdon | 2 | 1 | Slight |