Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 5 Jan 1988 | Broxbourne | 1 | 1 | Slight |
| Tue 5 Jan 1988 | Broxbourne | 2 | 1 | Slight |
| Thu 7 Jan 1988 | Broxbourne | 1 | 1 | Slight |
| Mon 25 Jan 1988 | Hertsmere | 2 | 1 | Slight |
| Tue 26 Jan 1988 | Broxbourne | 2 | 2 | Slight |
| Fri 29 Jan 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 3 Feb 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Wed 10 Feb 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Mon 15 Feb 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 16 Feb 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Thu 10 Mar 1988 | Broxbourne | 2 | 1 | Slight |
| Tue 15 Mar 1988 | Broxbourne | 2 | 1 | Slight |
| Sun 20 Mar 1988 | Welwyn Hatfield | 2 | 2 | Slight |
| Wed 20 Apr 1988 | Hertsmere | 2 | 1 | Slight |
| Sun 8 May 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 10 May 1988 | Broxbourne | 2 | 1 | Slight |
| Fri 20 May 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 20 May 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Tue 24 May 1988 | Broxbourne | 2 | 1 | Slight |
| Mon 27 Jun 1988 | Broxbourne | 2 | 2 | Slight |
| Wed 29 Jun 1988 | Welwyn Hatfield | 1 | 1 | Slight |
| Sun 3 Jul 1988 | Broxbourne | 2 | 2 | Slight |
| Mon 4 Jul 1988 | Broxbourne | 2 | 1 | Slight |
| Wed 13 Jul 1988 | Broxbourne | 1 | 1 | Slight |
| Wed 13 Jul 1988 | Welwyn Hatfield | 2 | 1 | Slight |
| Fri 15 Jul 1988 | Broxbourne | 2 | 2 | Slight |
| Thu 28 Jul 1988 | Broxbourne | 2 | 1 | Slight |
| Wed 17 Aug 1988 | Broxbourne | 2 | 1 | Slight |
| Thu 1 Sep 1988 | Broxbourne | 2 | 1 | Slight |
| Fri 2 Sep 1988 | Broxbourne | 2 | 1 | Slight |
| Wed 7 Sep 1988 | Broxbourne | 2 | 1 | Slight |
| Thu 15 Sep 1988 | Broxbourne | 2 | 1 | Slight |
| Fri 16 Sep 1988 | Broxbourne | 3 | 1 | Slight |
| Sun 18 Sep 1988 | Broxbourne | 2 | 1 | Slight |
| Sat 1 Oct 1988 | Hertsmere | 1 | 2 | Serious |
| Fri 14 Oct 1988 | Broxbourne | 2 | 1 | Slight |
| Sat 22 Oct 1988 | Broxbourne | 3 | 1 | Serious |
| Tue 25 Oct 1988 | Broxbourne | 2 | 1 | Slight |
| Fri 18 Nov 1988 | Broxbourne | 2 | 1 | Slight |
| Fri 2 Dec 1988 | Broxbourne | 2 | 2 | Slight |
| Mon 12 Dec 1988 | Broxbourne | 2 | 1 | Serious |
| Mon 12 Dec 1988 | Broxbourne | 2 | 1 | Slight |
| Sat 17 Dec 1988 | Hertsmere | 2 | 3 | Slight |
| Sat 17 Dec 1988 | Welwyn Hatfield | 2 | 1 | Serious |
| Tue 20 Dec 1988 | Hertsmere | 2 | 1 | Slight |
| Sat 24 Dec 1988 | Broxbourne | 1 | 1 | Slight |