Dave Amos charts the American change from connected grids to the rise of cul-de-sacs, and what’s now being done to counteract their pitfalls.

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Stephen is an urban planner with a passion for promoting sustainable, livable, and diverse cities. He advocates for smart policies, regulations, and implementation programs that enhance urban environments by committing to quality design, accommodating growth, providing a diversity of housing choices, and adequately providing public services. Stephen primarily writes about land use and transportation issues.


  1. Great video, and mostly accurate, but the safety explanation for why engineers abandoned four-way intersections is flawed. The theory that eliminating grids would make driving safer turned out to grossly in error for a number of reasons that engineers failed to explore for 50 years.

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