HIGHWAY NEEDS OF THE NATIONAL DEFENSE
47
The most extensive change, improvement which requires complete departure from existing alinement and relocation, is required on the remaining one-third of the system as it now exists. The estimated mileage of the relocated roads is 11,891, which is less than the length of the existing roads by 641 miles; and the total length of the system, 37,800 miles at present, is shortened by this amount to 37,159 miles. Of the 11,891 miles of relocated highways, 9,867 are in rural areas and 2,024 in urban areas.
Photo by Texas State Highway Department
More than 2,000 miles of the urban portions of the interstate system will have to be relocated, in many cases as controlled-access freeyay with frontage roads such as the Central Boulevard in Dallas, Tex.
