Bicycling to work was considered unconventional, but that is changing. The total percentage is still low, less than 4%, but it is rising. Wealth and income have meant that some people have always walked or cycled because they couldn’t afford to drive. The poorest people are seeing a small growth in bicycling, but much of the growth is in the higher income earners who have more than doubled their use of bicycles.
From 2006 to 2013, bicycle commuting more than doubled among workers making $75,000 or more—the highest earnings category in the report—rising from 1.1 percent to 2.4 percent. – Slate
Urbanization helps. True costs of living encourage bicycling. An awareness of pollution and climate change inspires others. Health helps, too. A positive reinforcement may be taking place as more people bike, and as more influential people bike, transportation infrastructure shifts. Local transportation departments may also encourage bicycling because the additional infrastructure per commuter is cheaper than for single-occupant cars.
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