Safety improvements on the A14 in Cambridgeshire are due to start in the New Year.
The Highways Agency's plans include improved traffic signs and road markings, better route signing and queuing ahead signs.
In September a safety study was carried out on the A14 following a series of fatal accidents.
The agency said plans to widen the A14 between Fen Ditton and Ellington in Cambs are still scheduled for 2008.