Question This road sign means: Answers Roundabout ahead. No passing zone. Left turn yield on green. Traffic signal ahead. Explanation This sign means that a traffic signal is ahead. You should slow down and be prepared to stop. Take a FREE Practice Test Now This questions appears in the following tests: Montana Practice Test Washington Practice Test Maine Practice Test Minnesota Practice Test New Jersey Practice Test Ohio Practice Test West Virginia Practice Test Wyoming Practice Test Wisconsin Practice Test Mississippi Practice Test Vermont Practice Test New Mexico Practice Test