Generally when drivers "feel" that a speed limit is too low, it's because the street/road has been over-built. It urban environments, it's inarguable that lower

Generally when drivers "feel" that a speed limit is too low, it's because the street/road has been over-built. It urban environments, it's inarguable that lower speeds result in fewer fatalities. There's a hockeystick increase in the rate of fatality with pedestrian crashes as vehicle speed increases from ~30mph to ~40mph. See https://nacto.org/docs/usdg/relationship_between_speed_risk_fatal_injury_pedestrians_and_car_occupants_richards.pdf https://nacto.org/docs/usdg/relationship_between_speed_risk_... [PDF]