Does the subject want to ask "why Sanmenxia Central Business District has developed"? Location reasons. According to Baidu map, Sanmenxia Central Business District is built around Sanmenxia High-speed Railway South Station, which is a new center of urban construction and a high-end service platform in the Golden Triangle of the Yellow River. Because of its good geographical location, it has developed rapidly, which belongs to geographical reasons. Sanmenxia is a prefecture-level city in Henan Province, located in the Yellow River-Henan Golden Triangle at the junction of Henan, Shanxi and Shaanxi provinces.