The granite edge of the platform and tactile warning strip (bumpy tile) during platform renovations at Shady Grove station. The tactile warning strip is of the new style, while the tile is of the old style.
Ben Schumin is a professional photographer who captures the intricacies of daily life. This image may be used under Creative Commons Attribution-ShareAlike 2.0. Please provide artist attribution, as well as a link to the original photo and to the license terms.