Zhengzhou is the central station of the Joint Logistics Support Force and an important hub city of railway, aviation, electric power, post and telecommunications in China. Zhengzhou has the largest freight marshalling station in Asia. Zhengzhou Airport Area is the only national airport economic comprehensive experimental area in China. Zhengzhou Commodity Exchange is the first futures exchange in China, and Zhengzhou is also the core component of China-Henan Pilot Free Trade Zone. Zhengzhou is a national central city. Zhengzhou is an important birthplace of Chinese civilization, a national historical and cultural city, one of the six major sites supported by the state, and a member of the World Historical Metropolis Alliance. Zhengzhou has been the capital for five times in history.

the traffic status and importance of Xi' an in northwest China is self-evident. Xi 'an is located at the junction of China's land map center and China's central and western economic regions, and it is the only way for the northwest to reach the cities of Central Plains, North China and East China. In the national regional economic layout, Xi 'an, as the largest western central city along the economic belt of the China section of the new Eurasian Continental Bridge-Longhai-Lanzhou-Xinjiang Railway, is the bridgehead for the country to implement the strategy of developing the western region, with an important strategic position of connecting the east with the west and connecting the north with the south, and is one of the largest node cities in the national trunk highway network.