On December 13, 2021, the official website of Shandong Jinan Municipal People’s Government announced the approval of the Shandong Provincial Development and Reform Commission on the feasibility study report of the first phase of Jinan Urban Rail Transit Line 4, and the Shandong Provincial Department of Transportation on Jinan Urban Rail Transit Approval of preliminary design and budgetary estimate for the first-phase project of Line 4.

The first-phase project of Jinan Metro Line 4 starts at Xiaogaozhuang Station in Huaiyin District, and runs along Qingdao Road, Shun’an Road, Jingshi Road, Tangye Middle Road, and ends at Pengjiazhuang Station in Licheng District. The total length of the line is 40.2 kilometers. Underground laying method. There are 33 stations in the whole journey, all of which are underground stations; among them, 14 are transfer stations. Set up Lizhuang parking lot and Tangye North Depot. Set up three main substations of the Fifth Municipal Hospital, Qichuan and Pengjiazhuang, among which the main substation of the Fifth Municipal Hospital is newly built. The operation control center is connected to the existing operation control center near the Olympic Sports Center Station. The total project investment is about 39.9 billion yuan.

The first-phase project of Line 4 adopts a marshalling of 6 type A vehicles, 110/35KV centralized power supply, DC1500V overhead catenary power supply, and a maximum operating speed of 80 kilometers per hour. The number of train pairs in the initial, near and long-term peak hours are 18, 24, and 30 respectively. Supporting communication, signal, ventilation and air conditioning and heating, water supply and drainage and fire protection, automatic fire alarm, environment and equipment monitoring, comprehensive monitoring, automatic fare collection, station equipment, security, cloud platform and other systems.

In the future, when the first phase of Jinan Metro Line 4 is completed and opened to traffic, it will greatly improve Jinan's urban rail transit network, optimize and improve the level of public transportation services, and strengthen the connection between the western, central, and eastern urban areas of Jinan, alleviate urban traffic congestion, and guide the city Optimization and adjustment of spatial structure and functional layout. Editor/He Yuting