Walk to Work Day was last week. Chances are, if you are reading this in the Aiken area, you didn’t. And it’s not entirely your fault. Walking is one form of active transportation, which also includes cycling and other physically active modes of moving from place to place. Active transportation is important for health, environmental, and economic reasons. But being able to participate in active transportation depends on more than your own interest; it also depends on the built environment in your community.