Question This sign means: Answers School zone or crossing. Pedestrian crossing. Railroad ahead. Explanation A five-sided yellow or yellow-green sign alerts drivers to either a school zone or school crossing. This questions appears in the following tests: Kentucky Practice Test Georgia Practice Test California Practice Test Connecticut Practice Test Arkansas Practice Test Wisconsin Practice Test Kansas Practice Test New York Practice Test Illinois Practice Test Delaware Practice Test Wyoming Practice Test Maine Practice Test District Of Columbia Practice Test Alabama Practice Test South Dakota Practice Test Tennessee Practice Test Mississippi Practice Test Oklahoma Practice Test Arizona Practice Test Maryland Practice Test New Mexico Practice Test South Carolina Practice Test