Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sun 5 Jan 2003 | Watford | 4 | 1 | Slight |
| Mon 6 Jan 2003 | Three Rivers | 2 | 1 | Serious |
| Mon 27 Jan 2003 | Three Rivers | 1 | 1 | Slight |
| Tue 11 Feb 2003 | Hillingdon | 2 | 1 | Slight |
| Wed 12 Feb 2003 | Three Rivers | 1 | 2 | Serious |
| Tue 18 Feb 2003 | Hillingdon | 2 | 1 | Serious |
| Sat 22 Feb 2003 | Three Rivers | 2 | 3 | Serious |
| Wed 12 Mar 2003 | Watford | 1 | 1 | Slight |
| Sat 22 Mar 2003 | Watford | 2 | 1 | Slight |
| Sun 20 Apr 2003 | Three Rivers | 1 | 4 | Slight |
| Thu 19 Jun 2003 | Three Rivers | 2 | 2 | Slight |
| Fri 18 Jul 2003 | Watford | 2 | 1 | Slight |
| Thu 31 Jul 2003 | Hillingdon | 2 | 1 | Slight |
| Tue 5 Aug 2003 | Watford | 2 | 2 | Slight |
| Sat 30 Aug 2003 | Watford | 1 | 1 | Slight |
| Sun 31 Aug 2003 | Watford | 3 | 1 | Serious |
| Mon 15 Sep 2003 | Hillingdon | 1 | 1 | Serious |
| Fri 7 Nov 2003 | Hillingdon | 2 | 1 | Slight |
| Tue 11 Nov 2003 | Hillingdon | 2 | 1 | Serious |
| Thu 20 Nov 2003 | Watford | 2 | 1 | Slight |
| Tue 2 Dec 2003 | Three Rivers | 1 | 4 | Serious |
| Wed 3 Dec 2003 | Three Rivers | 1 | 1 | Serious |
| Wed 10 Dec 2003 | Three Rivers | 2 | 1 | Slight |