All along the motorway these things are mounted on the crash barrier between the lanes. There's one crash barrier for each direction of traffic and only one of them has these things mounted.
There's a couple of different colors, the darker ones fewer, no idea if that is on purpose or coincidence. There's some with white and red stripes at regular intervals.
I can't figure the purpose of these, does anyone know?
But looking at the picture there is no road behind them, only the path going up the mountain?
There's two opposing lanes of traffic on the other side if the barrier, I assure you. Cyprus drives on the left side of the road.