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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2 COMMENTS

  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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