Practice question What does a barricade often do in a work zone? Blocks access to a closed areaMarks a bicycle lane for normal travelShows that passing is encouragedIdentifies a hospital ahead Answer: A — Blocks access to a closed area The correct answer is shown above. Try the full quiz for additional practice. Practice more: Massachusetts Road Signs Practice Practice Questions - Massachusetts RMV Road Signs, Signals, and Pavement Markings Practice Exam →