I've often thought these two walls resemble the fins of two sharks passing by each other in the ocean. Do you see it?
What these walls are there for, I believe are to block headlights at night. You see, to the right of where I am standing is a roundabout. So as cars are coming around the bend, it seams like the headlights would shine into the traffic. Perhaps I am wrong, but I don't see any other reason why these walls would have been put in place. Street art?