Learn about the purpose of speed limits. Do you think lowering a speed limit will slow down traffic? Should residential speed limits be set differently for different roads? Watch this video to see what the research says. Research referenced in this video: Parker Jr., Martin R. "Effects of Raising and Lowering Speed Limits on Selected Roadway Sections." Publication No. FHWA-RD-9 7-084, Federal Highway Administration, McLean, Virginia, January 1997. www.fhwa.dot.gov/publications/research/safety/97084/97084.pdf This video was developed by the Minnesota Local Road Research Board (LRRB). For more information about the LRRB, visit their website at www.lrrb.org

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