And it says that for any given roadway, the speed limit can be changed if 85 percent, or the 85th percentile of drivers, are driving a certain speed, even if that speed is higher than the suggested speed limit.

它还表示，对于任何给定的道路，如果 85%（即 85% 的驾驶员）以一定速度行驶，即使该速度高于建议的速度限制，也可以更改速度限制。