<page_title> Line 1 (Zhengzhou Metro) </page_title> <section_title> Opening timeline </section_title> <table> <cell> 12 January 2017 <col_header> Commencement </col_header> </cell> <cell> 9.49 km (5.90 mi) <col_header> Length </col_header> </cell> <cell> 7 <col_header> Station(s) </col_header> </cell> <cell> Phase 2 <col_header> Name </col_header> </cell> <cell> 12 January 2017 <col_header> Commencement </col_header> </cell> <cell> 5.57 km (3.46 mi) <col_header> Length </col_header> </cell> <cell> 2 <col_header> Station(s) </col_header> </cell> </table>
Phase 2 of Line 1 opened on January 12, 2017 with seven stations (9.49 km) and two stations (5.57 km).