Question This sign means: Answers One-way traffic. Two-way left turn. Two-way traffic. Minimum speed limit. Explanation Regulation signs regulate traffic speed and movement, displaying rules which drivers must obey. This sign tells drivers the direction in which they must drive when turning onto a one-way street. Take a FREE Practice Test Now This questions appears in the following tests: Ohio Practice Test North Carolina Practice Test Mississippi Practice Test New Hampshire Practice Test New Jersey Practice Test Maine Practice Test Vermont Practice Test Arkansas Practice Test Maryland Practice Test Connecticut Practice Test