Question This sign means: Answers Slow-moving vehicle. Road construction/maintenance area. Traffic signal ahead. Explanation This sign is displayed on slow-moving vehicles. Take a FREE Practice Test Now This questions appears in the following tests: Georgia Practice Test Illinois Practice Test Mississippi Practice Test California Practice Test Wyoming Practice Test South Carolina Practice Test Alabama Practice Test Wisconsin Practice Test Arizona Practice Test Connecticut Practice Test Kentucky Practice Test Delaware Practice Test Tennessee Practice Test Kansas Practice Test Maine Practice Test Rhode Island Practice Test New Mexico Practice Test South Dakota Practice Test Arkansas Practice Test