What is the name of the new expressway from Xi to Yan 'an?

The new expressway from Xi to Yan 'an is called expressway, Yan Xi.

Also known as Yan Xi expressway, China National expressway Network. : G6522 is the parallel line of Baomao Expressway (G65). Expressway, Yan xi starts from Yan 'an, Shaanxi and ends in xi 'an, Shaanxi, passing through Yan 'an, Ganquan, Fuxian, Huangling, Tongchuan, Sanyuan and Xi 'an, with a total length of 320 kilometers.

Expressway, referred to as expressway for short, refers to the expressway dedicated to high-speed driving of automobiles. Expressway has different regulations in different countries and regions, different times and different scientific research and academic fields. According to China's Technical Standard for Highway Engineering (JTGB0 1-20 14), expressway is a multi-lane expressway designed for cars to drive in different directions and lanes, and all access is controlled. The annual average daily design traffic volume in expressway should be above 15000 passenger cars, and the design speed is 80- 120km.