There are areas on campus that are almost entirely artificial, and some that are all grass. Both can express the turf of something. This photo shows a combination of both elements that can be considered turf. The trees are there to make it a nice looking scene, and are purely for the pleasure of the eyes, which is one use for turfing. The bricks mark out an area, in this case walking turf, where students can travel from place to place. This individual walkway did not seem to be the turf of any individual building by itself, but rather the pedestrian population as a whole.