The 18th Street Expressway (often shortened to 18th Street in everyday speech) is a freeway in Kansas City, Kansas that runs from Interstate 35 north to Interstate 70/U.S. Route 24/U.S. Route 40. It carries the U.S. Route 69 designation its entire length.
The 18th Street Expressway contains the entirety of Route 69.
The vignette says that the Expressway is labeled Route 69 for its entire length, suggesting that Route 69 is larger than the Expressway (that the Expressway in its entirety is only part of Route 69).