A number of studies show that higher speed limits significantly increase the risk of accidents and fatalities for pedestrians, cyclists, and motorists. A National Transportation Safety Board report and separate study by the Insurance Institute for Highway Safety both found that the risk of being seriously injured or killed in a crash rises sharply with speed. This isn't about "bubble wrap," but real-world safety.

This is especially important in areas where cars and pedestrians share the same streets, such as large car-centric cities and poorly planned suburban neighborhoods. Driving in these environments poses a serious danger to pedestrians and cyclists, who often have limited protection. According to the National Highway Traffic Safety Administration, urban areas see the highest rates of pedestrian fatalities due to reckless driving. These laws are not just about controlling traffic—they help reduce the risks created when drivers act carelessly in places where people walk, bike, and live.