The Most Polite Trucker in America Is a Driverless 18-Wheeler

They’re on the interstate in Texas and can do almost everything a human truck driver does, except honkOn a busy freight corridor, the 240 miles of I-45 between Dallas and Houston, it was bumper-to-bumper, like usual, when something out-of-the-ordinary happened. A big rig let in several cars from the on-ramp. Another 18-wheeler changed lanes to make space for a truck pulled over on the shoulder.Neither honked its horn—the baritone blasts anyone who has ever driven a hatchback can’t forget.They’re driverless trucks: they don’t need to honk and can’t on their own, said Aurora Innovation, a major driverless trucker. The trucks...