<page_title> Line 1 (Nanjing Metro) </page_title> <section_title> Opening timeline </section_title> <table> <cell> Andemen — CPU <col_header> Segment </col_header> </cell> <cell> 25.08 km (15.58 mi) <col_header> Length </col_header> </cell> <cell> Southern extension <col_header> Name </col_header> </cell> </table>
The southern extension line of Metro Line 1 has a total length of 25.08 km (excluding Andemen station).