Tesla Autopilot Lane changing

Lane changing is so common for most drivers that we pretty much take it for granted. But if you consider the amount of judgment and attention it takes, it is quite an accomplishment for a hardware/software setup like the Autopilot. The Autopilot needs the driver’s assistance only so far as the assurance that there is no rapidly approaching vehicle coming from behind in the target lane. The Tesla ultra-sonic sensors can see only 16 feet out, which covers your blind spot and about one car length to the rea