TV talk about people who walk
Topics in Episode 47:
Absurd sidewalk designs.
Landmark pedestrian legislation in Maryland.
The Center For The Visually Impaired in Atlanta, Georgia.
The Human Powered Transportation course at Princeton University.
Pedestrians naturally walk in a straight line. This curving sidewalk may satisfy some landscape architect's whim, but it is far inferior to a straight sidewalk for anyone trying to walk to a destination. There are better designs if you absolutely have to curve a sidewalk.

How do you have a straight sidewalk without straight edges? Start with a straight sidewalk. Double its width. Curve the edges of the extra width. There is a straight path hidden inside the curvy edges of the wider path. If your landscape architects just can't stand to build a straight line, perhaps this will make them happy..