When will those trials lead to autonomous construction machinery doing real work on construction sites? “We’ll get there,” Weiss says, but Caterpillar’s partners need to be comfortable with the technology’s maturity. “There are risks involved, and we’re on that journey, ...

Over the last 20 or so years, contributing editor Robert N. “Bob” Charette has written about some of the thorniest issues facing the planet at large and engineers in particular. For IEEE Spectrum, he’s dug into software reliability and maintenance, ...