How are the streets in Yong 'an City divided?

Yong 'an City is divided into four streets, named after the word "Yan" in Yong 'an and the four directions of southeast and northwest, namely Yandong, Yannan, Yanxi and Yanbei. It should be noted that some streets or towns in the suburbs of Yong 'an were merged into the above four streets after adjustment. Probably the original Xingping Street (around the thermal power plant) was merged into Yanbei, the original Jishan Township was merged into Yan Xi, and the original Mao Ping Township (street) and Huangli Street were merged into Yannan.