Home / Alberta / Questions / Rules of the Road Rules of the Road Report Hand signal for stopping or slowing: A Arm up B Arm out straight C Arm down from window (palm back) D Arm waving Show Answer & Explanation Correct Answer: C. Arm down from window (palm back) Use if vehicle signals fail. Previous Next More Rules of the Road Questions Snow/ice accumulated on roof of vehicle: Tire chains in Alberta: Winter tires perform best below: Alberta winter tire law: Meeting horse/rider on road: Often Missed All Alberta Questions Smart Practice Mock Exam Road Signs Guide