Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 7 Jan 1999 | Richmond upon Thames | 2 | 1 | Serious |
| Thu 4 Feb 1999 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 5 Feb 1999 | Hounslow | 2 | 1 | Slight |
| Fri 12 Feb 1999 | Hounslow | 1 | 1 | Slight |
| Wed 24 Feb 1999 | Hounslow | 2 | 1 | Serious |
| Wed 24 Feb 1999 | Hounslow | 2 | 1 | Serious |
| Sun 28 Feb 1999 | Hounslow | 1 | 1 | Slight |
| Wed 3 Mar 1999 | Hounslow | 2 | 1 | Slight |
| Wed 3 Mar 1999 | Hounslow | 2 | 1 | Slight |
| Sun 7 Mar 1999 | Hounslow | 2 | 1 | Slight |
| Thu 11 Mar 1999 | Hounslow | 2 | 2 | Slight |
| Thu 11 Mar 1999 | Hounslow | 2 | 2 | Slight |
| Wed 24 Mar 1999 | Richmond upon Thames | 2 | 1 | Slight |
| Fri 26 Mar 1999 | Hounslow | 2 | 2 | Serious |
| Wed 7 Apr 1999 | Hounslow | 2 | 1 | Slight |
| Sun 25 Apr 1999 | Hounslow | 2 | 2 | Slight |
| Fri 30 Apr 1999 | Hounslow | 2 | 1 | Slight |
| Fri 30 Apr 1999 | Hounslow | 2 | 1 | Slight |
| Mon 3 May 1999 | Richmond upon Thames | 1 | 1 | Slight |
| Fri 7 May 1999 | Hounslow | 2 | 1 | Slight |
| Fri 7 May 1999 | Hounslow | 2 | 1 | Slight |
| Mon 10 May 1999 | Hounslow | 2 | 2 | Slight |
| Mon 10 May 1999 | Hounslow | 2 | 2 | Slight |
| Mon 10 May 1999 | Richmond upon Thames | 2 | 1 | Slight |
| Tue 18 May 1999 | Hounslow | 1 | 1 | Slight |
| Wed 26 May 1999 | Richmond upon Thames | 1 | 1 | Slight |
| Wed 9 Jun 1999 | Hounslow | 2 | 1 | Slight |
| Tue 22 Jun 1999 | Hounslow | 2 | 1 | Slight |
| Fri 9 Jul 1999 | Hounslow | 2 | 1 | Serious |
| Fri 16 Jul 1999 | Richmond upon Thames | 2 | 3 | Slight |
| Tue 20 Jul 1999 | Hounslow | 1 | 1 | Slight |
| Thu 12 Aug 1999 | Hounslow | 1 | 1 | Slight |
| Thu 12 Aug 1999 | Hounslow | 1 | 1 | Slight |
| Sat 21 Aug 1999 | Hounslow | 2 | 1 | Slight |
| Mon 23 Aug 1999 | Hounslow | 1 | 1 | Slight |
| Wed 25 Aug 1999 | Hounslow | 1 | 1 | Slight |
| Tue 7 Sep 1999 | Hounslow | 2 | 1 | Serious |
| Mon 13 Sep 1999 | Hounslow | 1 | 1 | Slight |
| Mon 13 Sep 1999 | Hounslow | 1 | 1 | Slight |
| Sat 18 Sep 1999 | Hounslow | 3 | 2 | Slight |
| Tue 21 Sep 1999 | Hounslow | 2 | 1 | Slight |
| Fri 24 Sep 1999 | Hounslow | 1 | 2 | Fatal |
| Wed 13 Oct 1999 | Richmond upon Thames | 2 | 1 | Slight |
| Sat 30 Oct 1999 | Richmond upon Thames | 3 | 1 | Slight |
| Wed 10 Nov 1999 | Hounslow | 3 | 1 | Slight |
| Tue 16 Nov 1999 | Hounslow | 2 | 1 | Slight |
| Sun 12 Dec 1999 | Hounslow | 1 | 1 | Slight |
| Thu 23 Dec 1999 | Hounslow | 2 | 1 | Serious |