I remember seeing a comic that showed a neighborhood road covered in potholes, and it had an average speed of 20 mph. Then they repaved the road and the average speed went up to 40 mph. Then people complained cars were going to fast so they installed speed bumps that brought the average speed back down to 20 mph.

Better to just keep the roads at a constant level of bad but not car destroying bad and it keeps roads at safe speed.

Our roads out here by Pittsburgh are pretty bad by the hills to the east. You just get used to it lol