Text and illustrations in margins.This map, issued in 1918 by the National Highways Association (NHA), shows the 150,000-mile (241,402-kilometer) network of roads proposed by the NHA. Under the slogan “Good roads for everyone!” the NHA advocated a “four-fold system” of roads that would include national highways to be built and maintained by the federal government, and systems of state, county, and township or town roads. The map associates the building of roads with national defense and “preparedness” for U.S. involvement in World War I, as symbolized by James Montgomery Flagg’s iconic figure of Uncle Sam in the lower left. The NHA was established in 1911 to promote the development of an improved national road network in the United States. ...