Speed Limits - BYUradio

Speed LimitsTop of Mind with Julie Rose • Season 1, Episode 1461, Segment 3

Nov 3, 2020 • 14m

Guest: Brian Taylor, Professor of Urban Planning and Public Policy, Director of Institute of Transportation Studies, University of California, Los Angeles Why is the speed limit on your street what it is? How do cities and states decide what’s the safest speed for a given road? Believe it or not, much of the time it’s based on how fast people are driving. Many cities and states use a guideline called “the 85th percentile rule.”

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