VOSA Effectiveness Report 2006/7
According to VOSA's most recent effectiveness report, approximately 466,215 hgv annual tests were undertaken in 2006/07. The initial failure rate has increased from 36.9 per cent in 2005/06 to 39.5 per cent in 2006/07. Final fail rate (which excludes those vehicles that pass the test after the rectification of minor defects during the test) decreased from 22.3 per cent to 22.1 per cent continuing a downward trend since 2002.
Headlamp aim remains by far the most common cause of test failure, the incidence increasing from 19.0 per cent in 2005/06 to 23.7 per cent in 2006/07.
Top 10 hgv annual test failure items 2006/07
| Testable item | per cent of vehicles tested where the item was listed as a reason for failure | |
| 1 | Headlamp aim | 23.7 |
| 2 | Lamps | 7.8 |
| 3 | Service brake performance | 7.1 |
| 4 | Brake system components | 5.1 |
| 5 | Secondary brake performance | 4.6 |
| 6 | Parking brake performance | 2.8 |
| 7 | Suspension | 2.3 |
| 8 | Steering mechanism | 2.3 |
| 9 | Warning lamps | 2.2 |
| 10 | Speedo/tacho | 2.0 |
Source: VOSA Effectiveness Report 2006/07
To access VOSA's Effectiveness Report, please click here
