A few years ago, a private liberal arts college in Vermont decided to reinforce the image of its campus, which features lots of quads and open spaces, as one that encourages students to do more walking. Concrete walkways were built over existing dirt-paths that the shoes of students and faculty had been shaping and re-shaping for generations. When the renovations were done, the local newspaper reported that fewer students showed up in class thereafter with muddied sneakers, though more of them were walking across the campus, even on rainy days.
