Minneapolis ranked first among U.S. cities in innovative transportation solutions, fourth in energy technology.
As a kid growing up several hundred miles from the nearest metropolis, I used to draw fantastical visions of the great cities of the future. There would be moving sidewalks on every surface. (“Walking” was over.) Hover-taxis, hover-skateboards, hover-buses. (Hovering was a central element of my urban planning.) Also, sleek monorails conducted by robots, zipping noiselessly between glittering towers that vanished into cloudbanks and reappeared above them, miles in the sky.