Sure, but city streets are already mixed traffic. There are pedestrians, bikes, vehicles parking or turning, etc. It's not reasonable to raise the limit to what people want to drive and just ignore all the other users of the street.
Also, the optical narrowing mentioned in a sibling comment is quite effective. They've done that on a few streets near me via things like sidewalk bulb-outs at intersections, and swapping the parking lane & bike lane (so it goes curb-bike-parking-drive, rather than curb-parking-bike-drive). Everyone drives more slowly on those streets now - myself included.
Sure, but city streets are already mixed traffic. There are pedestrians, bikes, vehicles parking or turning, etc. It's not reasonable to raise the limit to what people want to drive and just ignore all the other users of the street.
Also, the optical narrowing mentioned in a sibling comment is quite effective. They've done that on a few streets near me via things like sidewalk bulb-outs at intersections, and swapping the parking lane & bike lane (so it goes curb-bike-parking-drive, rather than curb-parking-bike-drive). Everyone drives more slowly on those streets now - myself included.