whats the difference between a highway and a free way
Controlled-access highway In the United States, a freeway is defined by the federal government's Manual on Uniform Traffic Control Devices as a divided highway with full control of access.[68] This means two things. First, adjoining property owners do not have a legal right of access,[69] meaning that they cannot connect their lands to the highway by constructing driveways, although frontage roads provide access to properties adjacent to a freeway in many places. When an existing road is converted into a freeway, all existing driveways must be removed and access to adjacent private lands must be blocked with fences or walls.
U.S. Route 66 U.S. Route 66 (US 66 or Route 66), also known as the Will Rogers Highway, the Main Street of America or the Mother Road, was one of the original highways within the U.S. Highway System. US 66 was established on November 11, 1926, with road signs erected the following year.[4] The highway, which became one of the most famous roads in the United States, originally ran from Chicago, Illinois, through Missouri, Kansas, Oklahoma, Texas, New Mexico, and Arizona before ending in Santa Monica, California, near Los Angeles, covering a total of 2,448 miles (3,940 km).[5] It was recognized in popular culture by both the hit song "(Get Your Kicks on) Route 66" and the Route 66 television show in the 1960s.