VOSA is now halfway through a study into headlamp aim which is designed to find out why this is the most common cause of trucks failing their annual tests. Figures from the government agency show that since 2002 almost 20% of LGVs have been falling at this hurdle.
The Road Haulage Association (RHA) says modern vehicles have automatic adjustment aim and electronic equipment that is much more sensitive than the screwed-in adjusters on older
models. Steve Biddle, RHA head of technical services, says Vosa has been looking at this problem for some time now it has given it top priority.
"[VOSA] is working with the test stations so that all the staff have a better understanding [of the issue] and are sensible and flexible with what's happening," he adds. "It should be a benefit in the future."
A VOSA spokesman says: "The aim [of the study] is to analyse and investigate equipment in use, address areas of operator and presenter concern and make recommendations for their resolution."
The study was launched in January it is due be completed by the end of this month. The findings will be published in April.
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