A 60 to 0 braking test gives you a floor on the braking distance. You've got to add safety factors from there. Reaction time, road conditions, vehicle conditio

A 60 to 0 braking test gives you a floor on the braking distance. You've got to add safety factors from there. Reaction time, road conditions, vehicle condition, steering inputs, etc. But also, a brake test with a swerve is going to be a lot less repeatable, because the driver input is more complex.