What is the meaning of interstate number?

Interstate numbers are a system of highway numbering used in the United States. The system was created by the American Association of State Highway Officials (AASHO) in 1947, and it was officially adopted by the U.S. Congress in 1956.

Interstate numbers are a unique way to identify highways and make it easier for drivers to find their way around the country. Each interstate highway is assigned a number, and that number is used to identify the highway on maps and signs.

Interstate highways are also important for economic development. They help to connect businesses and communities and make it easier for people to travel to work and other important places.

The interstate highway system is a vast network of roads that covers the United States. There are over 46,000 miles of interstate highways in the country, and they are used by millions of people every day.

The interstate highway system is an important part of the United States transportation infrastructure. It helps to keep the country moving and it plays a vital role in the economy.