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March 2018

There are four main problems in urban transportation that require four separate solutions, transit guru Jarrett Walker said in Chicago in March, urging people to be wary of tech companies that claim to solve more than one problem at a time.
Walker is…

Four years ago the electric utilities were roiled by predictions they would collapse before an onslaught of solar panels and windmills and batteries at homes and businesses that wouldn't need utilities anymore.
They pulled themselves together by…