The Highways Agency has bought more than 3,000 screens to stop drivers rubbernecking when passing motorway accidents.
The screens will be placed around serious accidents to prevent drivers on the opposite carriageway from slowing down to stare at the wreckage.
The Government is hoping that the screens will improve accident clear-up times and prevent traffic jams caused by rubberneckers.
Each set of screens is made up of 30 two-metre-high boards which can screen up to 75m of motorway and can be loaded onto a purpose-built trailer for quick deployment. In total, 105 sets have been bought, costing the taxpayer around £2.3m.
The screens are due to come into use during the next 12 months as part of the Government's CLEAR (Collision, Lead, Evaluate, Act and Reopen) scheme, which aims to cut accident clear-up times and keep traffic moving.
Road accidents are estimated to cost the economy around £750m a year.