United States Department of Transportation
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Abstract:Posted speed limits (PSLs) are a highly complex issue involving engineering, human factors, and political and societal concerns. On a national level, recent research along with calls to change how speed limit are set, especially for city streets, have generated extensive discussion on future speed limit setting procedures. Recent Texas Department of Transportation (TxDOT) research involved conducting dialogues with TxDOT districts to learn about the practices and procedures being used, developing products designed to increase the understanding of operating speed and of PSLs, and performing new research into operating speed relationships with roadway characteristics. The developed communication products include videos (one for engineers and one for the public), a pamphlet for public distribution, answers to common questions about speed and speed limits, and a workshop on state and national speed limit setting practices.
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