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National park roads and parkways is an important part of national parks in the United States. The road is integrated with national parks, which is the characteristics and brand image of national parks. National park roads and parkways is not only an important means of transportation in national parks, but also a tourist attraction and destination. For tourists, driving on the national park roads and parkways means visiting the national parks. The development of national park roads and parkways embodies the integration of road engineering and aesthetics, philosophy, recreation, ecology and other disciplines, promotes the transformation of road from a single traffic function to a complex function of recreation, landscape, culture and protection, highlights the gorgeous landscape and imaginative engineering alignment, and also shows how to provide diversified recreational opportunities in protecting priceless natural and cultural resources to achieve a balance between environmental protection and public tourists. This paper makes a thorough analysis of the development process of American national park roads and parkways in the past hundred years from the aspects of concepts, development background, construction idea, development measures, management system, financial support and construction practice, and summarizes the development experience and enlightenment. The conclusion is to grasp the law of national park roads and parkways development in essence. From this point of view, the paper puts forward some suggestions for the development of China's national park roads and parkways. These studies are of great theoretical value and practical significance to the flourishing development of China's national parks, national park roads and parkways, tourist scenic byways and tourist highways. [ABSTRACT FROM AUTHOR]