Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 7 Jan 1999 | Hertsmere | 2 | 2 | Slight |
| Tue 23 Mar 1999 | Hertsmere | 2 | 1 | Slight |
| Thu 27 May 1999 | Hertsmere | 2 | 1 | Slight |
| Mon 7 Jun 1999 | Hertsmere | 2 | 3 | Slight |
| Fri 16 Jul 1999 | Hertsmere | 2 | 1 | Slight |
| Sat 17 Jul 1999 | Hertsmere | 2 | 1 | Slight |
| Sat 2 Oct 1999 | Hertsmere | 1 | 2 | Slight |
| Tue 2 Nov 1999 | Hertsmere | 1 | 1 | Slight |
| Tue 23 Nov 1999 | Hertsmere | 2 | 1 | Serious |