The value of reduced accidents is found by multiplying the estimated value per accident type by the change in the number of accidents of each type.
For example, if a project is expected to reduce fatal collisions on a road by 1.5 per year, and the cost per collision, based on the VSL concept, is estimated at $3,104,738, the reduced fatal accidents would be valued at $4.6 million per year. Add this to the value of reduced injury and property damage accidents to get the total economic value of accident reduction.