Final answer:
The statement is false; Interstate routes with odd numbers run north-south, while even-numbered routes run east-west, with the Interstate Highway System serving both directions.
Step-by-step explanation:
The statement that Interstate routes primarily run north and south is false. The Interstate Highway System in the United States is designed such that routes with odd numbers run north to south, whereas routes with even numbers run east to west. As a result, the interstates serve both directional axes evenly. For example, Interstate 95 (I-95) travels along the east coast from north to south, whereas Interstate 10 (I-10) stretches across the southern part of the country from east to west.
The development of the interstate highway system was driven by the increase in automobile usage and the corresponding need for a robust national road network.
Contrary to the initial statement, interstate routes predominantly follow an east-west orientation rather than north-south. This grid-based numbering system aids in navigation and provides a systematic layout for the extensive U.S. highway network.