Examine the graphic and the text. Then identify the type of graphic being used and explain how it clarifies or enhances the meaning of the text.

Passage: The Eisenhower Interstate Highway System, which was planned and constructed in the 1950s, includes many of the highways we drive on today. At first, most Americans were excited about the possibility of a quick commute to their favorite city or a smooth trip across this great country of ours, but in the years since, it's become obvious the plan had some major flaws. In several states, the main city is the hub where all the state's highways meet. This not only causes major traffic problems in these cities but also makes it difficult for anyone to cross the state in an efficient way.