Home / Alberta / Questions / Road Signs Road Signs Report A flashing red light: A Yield B Treat as stop sign — full stop C Broken D Green Show Answer & Explanation Correct Answer: B. Treat as stop sign — full stop Functions identically to a stop sign. Previous Next More Road Signs Questions A 'Pavement Ends / Gravel Ahead' sign: A red circle with white horizontal bar: Alberta school zone speed limit when posted: A red octagonal sign means: A downward-pointing triangle with red border: Often Missed All Alberta Questions Smart Practice Mock Exam Road Signs Guide