This new quantity try estimated predicated on existing and anticipated future freeze speed, severity rate, and you can AADT or VMT
Safety Research
The protection data leads to how many crashes questioned to possess for every seriousness method of (deadly, sort of Good burns, method of B burns, form of C burns, and you can property wreck simply). These estimates are built towards the Ft Situation and the Option(s) into first year out-of advantages therefore the last year out of research.
The crash rates and seriousness utilized in the protection studies should reflect the degree of detail suitable for the advantage-prices investigation. Crash cost and you may severity are given for different business types (road, expressway), to possess specific corridors, and specific web sites (roadway areas or intersections).