The construction arm of multi-utility company Amey has built two classrooms on wheels to help cut Britain's road death toll.

The two trailers built by the company, which has a site at Sutton Courtney, will help the Driving Standards Agency (DSA) introduce a new element into the basic theory driving test.

The hazard perception test is based on a 15-minute video assessment designed to analyse the reactions of learner drivers to things they may encounter on the road.

Amey won the contract to build the trailers from QinetiQ, which is running trials of the new test for the DSA.

The trailers are touring the UK to test the skills of 12,000 motorists: 4,000 learners; 4,000 drivers with fewer than 12 years' experience; and 4,000 experienced drivers with more than ten years' experience.

QinetiQ is one of Europe's largest research organisations and employs leading scientists and internationally acclaimed experts. The DSA is an agency of the Department for Transport, Local Government and the Regions.