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FHWA Highway Safety Programs

Speed Limit Setting Handbook

The Speed Limit Setting Handbook provides practitioners with information on how to conduct an engineering study to set a non-statutory speed limit for a speed. The individual chapters within the Handbook provide information on factors to consider, the process, data needs, analysis methods and tools, and evaluation considerations used in an engineering study. The Handbook also includes seven case studies that show examples of jurisdictions’ processes for setting non-statutory speed limits aligned to the steps in this Handbook, and examples of policies for setting speed limits.