Thoes little lines on the motorway?

[afzalhussain]

Has anyone noticed the little printed lines on the motorway next to the markings seperating the lanes. kinda look like speedcamera markings but on the side of the lane?
what are they?

[z786]

are them lines after some boards over your head?
if yes then most likely

[Meat-Head]

On the M-H-M Dayout 2010 approching BIRRRMINGham sodding road-pilot, angel thing was going nuts at overhead thingy's