Just out of curiosity, what if a road had concave shaped lanes such that the steering was always biased toward the center of the lane. Then at some point the s

Just out of curiosity, what if a road had concave shaped lanes such that the steering was always biased toward the center of the lane. Then at some point the surface changes. Would that have a similar effect of causing drivers to potentially crash at that point? If not, then any driver assisted implementation should emulate the feel of a concave road (or road ruts) as much as possible. Make it so that the car is more comfortable to drive, but just subtle enough so that the driver's attention doesn't drift too much.