Tuesday, August 2, 2011

Diverging Diamonds

My grandpa had a lot of rules. No water parks. No fireworks. I was also to avoid left turns if possible, opting for several right turns rather than a single left. At least for the last piece of wisdom, grandpa was right. UPS has on-board computers to minimize the left turns made by their drivers. Many of the 10 million motor accidents reported yearly on roads in the United States involve left turns.

A fascinating story I heard on NPR today said that many engineers advocate "diverging diamond" intersections to solve the left turn conundrum.

"Hate Left Turns? Take a 'Diverging' Route" on NPR

1 comment:

  1. That's interesting! They've been putting in more roundabouts around here, which have greatly reduced accidents.


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