A readily available, paper-based depiction of the network of controlled-access roadways that constitute the United States Interstate Highway System. This resource provides a visual representation of routes connecting major metropolitan areas and facilitating long-distance travel. Examples include depictions showing the routes of I-95 along the East Coast, or I-80 stretching across the northern portion of the country.
These documents offer a convenient, backup navigation tool, particularly valuable in areas with limited or unreliable cellular service, or during electronic device malfunctions. Historically, paper road maps were essential for trip planning and orientation; while digital navigation systems are prevalent, physical maps retain utility for overview route assessment and as a failsafe. They promote spatial reasoning skills and offer a tangible representation of geographic relationships.
The following sections will examine different sources for acquiring these cartographic aids, considerations for selecting the appropriate format, and how to effectively utilize them for route planning and en route navigation.