There will always be people who go much faster than the design speed. They are ignoring their and everyone else's safety.
I live on major street where the speed limit is 25 to slow people down. It used to be 35, and people normally go 35-45. The problem is that people go much faster when there is no traffic because the street feels wider. I would love if they redesigned for a slower speed. But there are cars in the middle of the night that drive over 60. It doesn't matter if street is calmed, they will go super fast and only tickets with slow them down.
There will always be people who go much faster than the design speed. They are ignoring their and everyone else's safety.
Those people don't care about speed limits, in part because they are generally set significantly too low. This has the effect of normalizing the scofflaws' attitude even when carried to a genuinely reckless extreme.
Conversely, if you raise the speed limit to the 85th percentile, anyone exceeding it significantly will stand out enough to catch easily.
Speeding is a victimless crime anyway. If you hit something or someone, you were doing something wrong besides speeding.
I live on major street where the speed limit is 25 to slow people down. It used to be 35, and people normally go 35-45. The problem is that people go much faster when there is no traffic because the street feels wider. I would love if they redesigned for a slower speed. But there are cars in the middle of the night that drive over 60. It doesn't matter if street is calmed, they will go super fast and only tickets with slow them down.