Motorists are hitting around 200 cones a week on the new managed motorway stretch of the M62.
Now drivers are being urged to take extra care and not flout the speed limits at roadworks, to prevent deaths and injuries to road workers and other motorists.
The Highways Agency said that in the last three years, eight road workers have been killed in England and there have been many near misses, with members of the public driving through coned off areas or colliding with works vehicles.
On the M62 where the major construction work on the region’s first managed motorway is nearing completion, the team is replacing around 200 cones a week following hits by drivers.
The cones have been put in place on stretches of the hard shoulder, in preparation for the scheme being opened later this year.
David Pilsworth, project manager, said: “Road workers do a difficult and dangerous job carrying out vital work to improve our roads.
“These cones are the only barrier protecting our workforce from the traffic, yet we have to replace hundreds of cones every week due to drivers hitting them.”