Footage showing the consequences of motorists not slowing down or paying attention when driving through roadworks has been released by the Highways Agency.
The CCTV prompted a Government minister to warn drivers that "saving a few seconds on your journey is simply not worth it".
The footage taken from cameras situated on England's motorways and A-roads has been made available to remind drivers of the importance of driving with extra care through roadworks.
The footage includes:
:: A car undertaking and pulling out in front of a lorry, causing it to swerve and overturn
:: A driver failing to spot traffic slowing ahead and crashing into the back of queuing traffic
:: A lorry ploughing into the back of a car, sending it crashing into a set of roadworks just a few metres away from workers
Roads minister Robert Goodwill said: "The safety of those who work on our roads is paramount.
"Saving a few seconds on your journey is simply not worth the cost of the delays caused by these incidents, let alone the devastating impact they can have on lives and families."
The agency highlighted some cases of those affected by roadwork crashes.
Roger Pomeroy, 51, was helping direct traffic past the scene of an overturned vehicle on the A303 in southwest England when he was hit by a car travelling at 40mph.
The car carried him for nearly 100 metres and then threw him to the ground. He suffered head injuries and broke his leg in two places.
He said: "My most vivid memory was of Maxine (my partner) at the hospital just crying and crying. I didn't know whether I was going to survive or die."
Mr Pomeroy needed 38 stitches in his leg and head and was off work for six months while his leg healed and he underwent extensive physiotherapy and counselling.
He has since returned to full duties.