Personally when facing decision between highways, local roads and other means of transportation I almost always have a specific destination in mind. Accidents p

Personally when facing decision between highways, local roads and other means of transportation I almost always have a specific destination in mind. Accidents per mile is the statistic I want. Accidents per hour of driving would be more useful for public policymakers – given fixed average commute 1 hour per day, what's the tradeoffs of building highways (worker mobility, commerce, pollution, landscape, accidents).