Crash rate - Star Rating comparisons
This EuroRAP review of 11 studies that make comparisons between average crash rates, costs or severities and the Road Assessment Programme's Star Rating or Road Protection Score (RPS) is now available on the Road Safety Knowledge Centre.
Some analyses show a reduction of between a third and a half in average crash rates, notably when moving between 2-star and 3-star roads. This change in crash rates is often lower when moving from a 3-star to 4-star or 4-star to 5-star banding, and this in part reflects the nature of the relationship between crash rates, traffic volume and road standard.
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