Shanghai Metro (上海地铁) is a rapid transit rail network in Shanghai, operating urban and suburban transit services to 14 of its 16 municipal districts and to Huaqiao Town, Kunshan, Jiangsu Province. The Shanghai Metro system is the world’s largest rapid transit system by route length. Opening in 1993 with full-scale construction extending back to 1986, the Shanghai Metro is the third-oldest rapid transit system in mainland China, after the Beijing Subway and the Tianjin Metro. It has seen substantial growth, significantly during the years leading up to the Expo 2010, and is still expanding quickly, with its most recent expansions having opened in December 2018. It is the largest component of the Shanghai metropolitan rail transit network, together with the Shanghai maglev train, the Zhangjiang Tram, the Songjiang Tram and the China Railway-operated commuter rail services to Jinshan. The metro system is also integrated with other forms of public transport in Shanghai.
The Shanghai Metro system is the world’s largest rapid transit system by route length totaling 676 kilometres (420 mi). It is the second largest by the number of stations with 413 stations on 16 lines.It ranks second in the world by annual ridership with 3.71 billion rides delivered in 2018. The daily ridership record was set at 13.29 million on March 8, 2019. Over 10 million people use the system on an average workday.
On 16 October 2013, with the extension of Line 11 into Kunshan in Jiangsu province, Shanghai Metro became the first rapid transit system in China to provide cross-provincial service and the second intercity metro after the Guangfo Metro. Further plans to connect the Shanghai Metro with the metro system of Suzhou are under active review, with the first lineconnecting Shanghai Metro Line 11 and Suzhou Metro Line 3 under construction and projected to be completed by 2024.Ambitious expansion plans call for 25 lines with over 1,000 km (620 mi) of length by 2025. By then, every location in the central area of Shanghai will be within 600 m (2,000 ft) of a subway station.