For years, Waymo's driverless ridehailing cars have been wreaking havoc on San Francisco streets, triggering traffic jams, getting stuck in roundabouts, and even colliding with a delivery robot. And when it comes to construction sites — a common fixture in a major metropolis like San Francisco — Waymos are having a hard time. A video, which has been circulating on social media, shows a driverless cab struggling to decipher the hand signals of a construction worker, juddering to a halt and refusing to turn left. The incident highlights some glaring and persistent shortcomings when it comes to driverleess ride-hailing […]