[sublinear]

Might depend on where you live. Not all roads are created equal.

I'm thinking stuff like many posted speed limit changes within a short length, damaged or missing signs, non-obvious construction and school zones, road passes through varying types of neighborhood, speed limit unexpectedly low for the design, etc.

By far the most annoying to me are off ramp speed limits that are so unrealistically slow they'd probably cause rear-end collisions or pile ups if anyone actually tried to obey them.

[dave333]

Off ramp speed limits are designed for all vehicles and drivers. Boy racers with go faster stripes can probably just double the number.