There’s a healthy demand for driverless trucks. It’s an industry predicted to reach 6,700 units globally, totaling $54.23 billion this year, and one that stands to save the logistics and shipping industry $70 billion annually while boosting productivity by 30 percent. Besides cost savings, the growth is driven in part by a shortage of human drivers. In 2018, the American Trucking Associates estimated that 50,000 more truckers were needed to close the gap in the U.S., even despite the sidelining of proposed U.S. Transportation Department screenings for sleep apnea. TuSimple is one of the companies vying for a slice of the market.