In an emergency that requires leaving the roadway, when should you begin braking if conditions permit?
Correct answer: B – After slowing to about 20 mph
If possible, avoid braking until the vehicle’s speed has fallen to about 20 mph after leaving the roadway. Then brake very gently because a loose shoulder provides less traction than pavement. Keeping one set of wheels on the pavement, when possible, also helps the driver maintain control.
Source: Kansas Commercial Driver’s License Manual — § 2.17.1, “Steering to Avoid a Crash”

