Home / Alberta / Questions / Road Signs Road Signs Report A 'Loose Gravel' sign: A Speed up B Slow — gravel reduces traction C Park D Pass sooner Show Answer & Explanation Correct Answer: B. Slow — gravel reduces traction Slower speed protects traction and following vehicles. Previous Next More Road Signs Questions A 'Pavement Ends / Gravel Ahead' sign: A 'No Right Turn' sign: A 'No Left Turn' sign: A 'No U-turn' sign: A yellow diamond with tractor symbol: Often Missed All Alberta Questions Smart Practice Mock Exam Road Signs Guide