(Video Link)
You may have encountered people who can't walk down a hallway without running into other people, or waddle down the center at the slowest possible speed. Or maybe it's just me. I walk fast, so this is a pet peeve of mine. Anyway, this flooring surface developed by researchers at the University of Electro-Communications in Tokyo is an attempt to solve the problem. The stuff is made of lenticular lenses -- the same material used in 3D holographic cards. It's supposed to subconsciously guide you to the right side of the hallway.
via OhGizmo!
http://www.neatorama.com/2010/06/14/improv-everywhere-paints-traffic-lane-for-tourists-on-new-york-city-sidewalk/
Because I'd love to see this flooring deal with that.