To facilitate travel on main interstate lines over shortest routes and best roads, and to compete with changing conditions, special route definitions and applications were established for business routes, by-pass, alternate, and temporary routes; way in which Interstate system marking compliments US numbered system; established policies of AASHO are defined.
Purpose and policy in establishment and development of United States numbered highways
Am Highways
American Highways ; 38 , n 1
1959
3 pages
Article (Journal)
English
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