What is one physical infrastructure improvement that can help reduce speeding?

Installing speed bumps is an effective physical infrastructure improvement that directly addresses speeding by forcing vehicles to reduce their speed. Speed bumps are designed as physical obstacles that create a noticeable change in the roadway, compelling drivers to slow down as they approach them. This is particularly useful in areas where pedestrians are present, such as residential neighborhoods or near schools, as it enhances safety by reducing vehicular speeds, thereby decreasing the likelihood of accidents.

While other options like wider road lanes, more traffic lights, and increased road signage can influence traffic flow and driver behavior, they do not have the immediate, tactile impact that speed bumps offer. Wider lanes may create a perception of increased speed, more traffic lights could reduce flow but may not directly address speed, and road signs primarily serve to inform rather than physically alter driving behavior. Speed bumps, by requiring drivers to navigate over them at slower speeds, serve as a direct and effective measure to mitigate speeding in various environments.