Centreline Dual Markings

[FoxtrotGolfXray 5.0]

Anyone seen these elsewhere before?







These appeared on the road between Sale and Maffra a couple of months back, about the same time as the safety barriers (seen in these pics) along the whole stretch of road (about 18kms) were completed.

The first time I drove on the road, I thought they had made a mistake with the markings, or that, with the introduction of the barriers, they were re-aligning the centreline and just hadn't got around to blanking out the old markings. However, that does not appear to be the case and the dual markings appear to be deliberate. At each end (I couldn't get a pic of it unfortunately) the dual lines are actually painted converging back to a single marking.

I wonder what the theory behind this style of marking is?