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Top Terms > Transportation operations > Traffic > Traffic characteristics > Traffic speed > Speed measurement > 85th percentile speed

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85th percentile speed (Bthsmp)

Definition
A traffic speed level at or under which 85 percent of persons are driving. (Source: Team: adapted from website of National Motorists Association: www.motorists.org/speedlimits/)
Broader Term
Speed measurement (Bthsm)
Related Terms (Hierarchical)
Average travel speed (Bthsma)