The Nanjing Metro is a rapid transit system serving Nanjing, the capital of Jiangsu province, with stations in all of the city's eleven districts.[1] It is constructed, maintained, and operated by the Nanjing Metro Group Company. The results of Nanjing's 2015 Municipal Bureau of Statistics count showed that Nanjing Metro carried a total of 720 million rides that year.[2]
The idea for a metro system in Nanjing was first proposed in 1984 in the Nanjing Municipal People's Congress as a way to ease traffic concerns. An underground alignment was preferred in order to "protect the historical city's monuments and walls".[3] Over the next few years, the city hired researchers and engineers to plan the system and to study existing metros like Hong Kong's MTR. In 1992, construction began on an experimental station in what would later become Sanshanjie station.[3] In 1999, following the successful completion of the station's experimental phase, Nanjing became the fifth city after Beijing, Shanghai, Guangzhou, and Shenzhen to receive approval from the National Development and Reform Commission to begin work on a subway.[3] Roughly one year later in December, construction on the initial 21.7 km (13.5 mi) line of the system broke ground.[4]
The system spans 499 km (310 mi) and has 218 stations, divided between urban line stations and S-train line stations.[a] There are 16 transfer stations, Andemen, Daxinggong, Gulou, Jimingsi, Jinmalu, Konggangxinchengjiangning, Maqun, Taifenglu, Wutangguangchang, Xiangyulunan, Xiaozhuang, Xinjiekou, Youfangqiao, Yuantong, Nanjing Railway Station, and Nanjing South Railway Station, with the latter two also connecting to China's nationwide conventional rail and high-speed rail network. An additional two stations (Yuantong and Olympic Stadium East) connect to the Hexi tram and one (Lukou International Airport Station) serves the city's international airport. Systemwide, service begins every morning with the earliest train scheduled to depart Yushanlu station on Line 10 at 5:40 a.m. and concludes with the final train scheduled to arrive at Maigaoqiao Station on Line 1 just after 12:27 a.m. the next morning.[5]
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