Ah sorry, I was actually thinking of paving stones - but it still holds that those are usually used to encourage lower driving speeds than asphalt, and are way

Ah sorry, I was actually thinking of paving stones - but it still holds that those are usually used to encourage lower driving speeds than asphalt, and are way more comfortable than cobblestones for cycling. You also see asphalt in use more and more often in streets where the number of cyclists are significant enough that cars are forced to drive slowly anyway.