Practice question What does a TWO-WAY TRAFFIC sign mean? Two-way traffic begins; keep to the rightTraffic must travel one way onlyA passing lane beginsAll traffic must use the center lane Answer: A — Two-way traffic begins; keep to the right The correct answer is shown above. Try the full quiz for additional practice. Practice more: Michigan Road Signs Practice Practice Questions - Michigan Driver License Knowledge Test Signs, Signals, and Pavement Markings Practice Exam →