Question This road sign means: Answers Road widens ahead. Lane reduction. The right lane ends soon and traffic should merge left. Highway entrance ramp ahead. Explanation A warning sign is usually yellow with black markings. This sign warns that the number of lanes ahead is reduced and that traffic will need to merge to the left. Take a FREE Practice Test Now This questions appears in the following tests: Wyoming Practice Test Arkansas Practice Test Georgia Practice Test Illinois Practice Test Connecticut Practice Test Delaware Practice Test Alabama Practice Test Kentucky Practice Test Arizona Practice Test Mississippi Practice Test California Practice Test Wisconsin Practice Test Maryland Practice Test Tennessee Practice Test South Dakota Practice Test Kansas Practice Test New Mexico Practice Test Iowa Practice Test District Of Columbia Practice Test