The extension line of Guangzhou's Metro Line 18 will also serve as the intercity railway linking Guangzhou's Nansha district, Zhuhai, and Zhongshan, Nanfang Plus reported on March 12.

Guangzhou, being one of the two metropolitan cities in the Guangdong-Hong Kong-Macao Greater Bay Area, has attracted great attention from nearby cities for its plans to expand its reach.

The intercity railway linking Nansha district, Zhuhai, and Zhongshan has been included in the plan for intercity railways in the Greater Bay Area listed by the Guangdong Provincial Development and Reform Commission.

Guangzhou and Zhuhai officially signed the cooperation framework agreement in December 2019 to push forward the construction of an intercity railway between the two cities.