Minnesota Department of Transportation

511 Travel Info

Traffic Engineering

 

traffic engineering workers

Basic intersection crash performance

*Average number of vehicles entering intersection can be calculated by adding ADTs for all of the intersection legs, and then dividing that by 2. This assumes that directional split of the roadway for the average day is 50/50.


per million entering vehicles

crashes per year

Basic segment crash performance


per million vehicle-miles

crashes per mile per year