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CityLab University: Induced Demand

Benjamin Schneider Sep 6, 2018

When traffic-clogged highways are expanded, new drivers quickly materialize to fill them. What gives? Here’s how “induced demand” works.

Two Key Points:

  • In urbanism, “induced demand” refers to the idea that increasing roadway capacity encourages more people to drive, thus failing to improve congestion.
  • Since the concept was introduced in the 1960s, numerous academic studies have demonstrated the existence of ID.

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