Sailing the Noosphere

I'm in some massive factory where robots are being reconditioned after mechanical failure. They shuffle through a row of men and women in white lab coats holding scanners, and above all the bustle is an official-looking man holding a digital watch (time RC). When a robot is identified as needing repairs, it's taken to the side. All the others are stuffed onto a train and sent whistling through the underground complex. The goal is to get each batch of robots done in five minutes, but this rarely happens.