Why UPS Trucks Don’t Turn Left

In 2004, UPS announced a new policy for its drivers: the right way to get to any destination was to avoid left-hand turns. When better tracking systems emerged in 2001, the package delivery service took a closer look at how trucks performed when delivering packages. As a logistics company with some 96,000 trucks and several hundred aircraft, much of UPS’s business can be distilled to a series of optimization problems around reducing the amount of fuel used, saving time, and using space more efficiently.

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