In Europe it is very common to have something outside the speed limit that makes someone slow down, and I don't mean speed bumps. They will plant trees along the road in slower areas which give the feeling that the road has narrowed (for example) and you feel like you need to slow down because they shoulder basically no longer exists. I find that very interesting. The US is just behind on road design, stuck in the 1950s. Civil engineers and road designers need to change the way they think about designing roads to actually take pedestrians into consideration. The way we set speed limits is pretty comical too.
I can't upvote this enough. People drive as fast as they can while feeling comfortable. Road design controls the outcome and the US will reduce a 6 second delay for drivers at the cost of pedestrian lives.
