Highways England is undertaking a £1.7 million project to upgrade message signs on the M40.
The upgrade will be carried out from Monday 18 January and will take place at various locations between junctions 1A for the M25 and 10 at Ardley. It will involve removing the old overhead message signs and replacing them with new models.
Highways England project manager Neil Doherty said: “This work will ensure better journeys for drivers as they will benefit from the latest technology to get up-to-date information about hazards or delays ahead.”
The first phase of work, to prepare the sites for the new signs, will be carried out in the roadside verges using hard shoulder closures only and should be completed by the end of January.
The second phase to install and switch on the new signs, which will start in parallel on 25 January, will require overnight lane and slip roads closures.
The work is expected to be completed in spring 2016.