CSA'S DATA TRAIL

Inconsistent enforcement: CSA’s heat index

State inspection intensity ratings range from Maryland, where 32 inspections per lane-mile of National Highway System were conducted during CSA's first two year, to Idaho, where only two inspections per lane-mile were done.

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Crashes and interventions: CSA’s crash flaw

Who’s keeping score: PSP is driver-info ‘gold standard’

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