Driverless 18-wheelers are on a few highways, but widespread use is a long way down the road

Chaotic roads are still too difficult for automated trucks to navigate.

无人驾驶卡车已在得州和加州的有限路段测试，模拟显示其可提升安全、降低油耗并缓解司机短缺。但雨雪天气、施工路段和复杂城市交通仍是难以克服的障碍，作者认为未来多年内人机协作仍是更现实的方向。