Highways England statistics show that around one in 10 drivers in the North West do not take notice when red Xs are used to close lanes, with many waiting until they reach an incident before changing lanes.
Red Xs are displayed on overhead signs to close lanes for several reasons, including an accident or breakdown, debris in the carriageway, or because of a person or animal on the road. Lanes are also closed to help emergency services get through or to provide a safe space for road workers.
Highways England has released new CCTV footage which shows a car narrowly avoiding a collision with a lorry as the driver changes lanes on the M60 near Whitefield.
The vehicle had been travelling along a lane closed by a red X and moved over just seconds before reaching two Highways England traffic officers who were helping the driver of a broken-down car by the central reservation.