Confused about the Zhaiwei to Zhanghuang line?

The current order is the time for the country to make corrections to highways and important roads across the country. However, the Pubei government still made big mistakes. National Highway 209, its northern starting point is Hohhot, Inner Mongolia, and its southern ending point is Beihai, Guangxi. The route in our county is from Lingshan Wuli to Baishishui into our county. The route is Baishishui, Dacheng. Zhang Huang. spring. This is National Highway 209. The provincial road number is a 5-digit number. The provincial highway in our county is S20123 (its starting point is Shinan Town, Xingye County, Yulin City. It is finally located at Shicong Square, Zhanghuang Town, which is the intersection with National Highway 209). However, due to the secondary highway from Pubei to Tieshangang New. Those experts got the number wrong. Pubei to Zhanghuang becomes Provincial Highway 209. In reality, it should be a provincial highway (S20123), but Zhang Huang changed the national highway into provincial highway 209 when he arrived at Quanshui. This should be National Highway 209 (G209). Attachment: The highway numbers are regular. G1 to G9 are expressways centered in Beijing. G10 to 99 are east-west expressways. G1000 to G1099 are north-south expressways. G10000 to G10999 are G100 to G199 used for ring expressways in provinces or central cities except Beijing are national highways centered in Beijing. G200 to G299 are national highways running north-south. G300 to G399 are national highways running east-west. G (1 digit, 2 digits, 4 digits, 5 digits) (number) These are the highway numbers. G (3 digits) is the national highway number. For example, the one from Inner Mongolia to Beihai is: G209S (5 digits) is the provincial highway number. For example, the one from Xingye to Zhanghuang is: S20123. I also hope that the relevant departments of our county can misname the roads in our county. Correction soon. So as not to let outsiders see my Pubei jokes.