Nicholas, Those are all good examples. Here's a little interesting disability trivia for you. The same elements of architectural design that provide access for one population may create problems for another. Curb cuts are needed for people who are in wheelchairs and can't negotiate curbs. But they can be a problem for blind folks who are used to using their canes to guide their safe passage, and can no long feel the change in sidewalk height that comes at the curb to the street. That is why curb cuts these days general contain either a visual difference (often painted yellow for those with low vision to see), and/or have little nubs (rounded bumps that stick up) to indicate a change in grade for someone who can't see it. Dr. Jane Jarrow