In Canada, the speed limits are kind of designed for bad conditions. Because somehow, in the cities, many people are too stupid or stubborn to go below the speed limit in the snow.
So in clear conditions, the speed limit should be higher than it is.
Also, at least around where I live, the roads are designed to support higher speeds than the speed limits indicate. So we have roads designed for 50km/h, but the speed limit is 30km/h. 50km/h feels nore comfortable to drive.
Why don't we just redesign the roads to make them less comfortable to speed in? Well, how else are we going to issue tickets where officers can choose who gets fined, and sometimes even get to search a car out of the deal??