Some previous discussion 2 weeks back on our unmanned test on a closed road at 55: <a href="https://news.ycombinator.com/item?id=20177593" rel="nofollow">https://news.ycombinator.com/item?id=20177593</a>. There we were testing our emergency procedures, safety operations, hardware checklists, and running through the game plan for the unmanned run.<p>For this milestone we're making public today, we demonstrated our truck driving without a person in it on a public highway.<p>It was remote-controlled (teleoperated) from a rest position onto the highway, supervised by the same driver at higher speeds, and then driven off the highway to a stopped position again by the same driver.