Reducing speed limits to increase public safety is a controversial issue that has been debated by safety advocates, engineers, politicians, transportation officials, and the public for years. A recent statutory change put a spotlight on the topic, requiring a deeper look at how speed limits are established and the effectiveness that lowering speed limits has on reducing vehicle speeds, as well as the impacts on pedestrian and bicycle traffic.
This guide examines the history of speed limits, the recent statutory change and consequences to communities. It also examines the effectiveness of speed limit changes, outlines a process to follow when deciding to make a change, and offers alternative strategies for pedestrian and bicycle safety.