TEN years ago, Shenzhen’s first Metro line opened for business. Now, the city has five lines that transport nearly 6 million passengers every day, and five more lines are currently in the works. With more public transport services being completed, the city is building a fast, efficient, low-carbon and environmentally friendly traffic network.

    1. Passengers and officials at the launch ceremony of Shenzhen Metro Line 1, now known as Luobao Line, on Dec. 28, 2004. The ceremony marked the start of Shenzhen’s Metro service.

    2. A cleaner in a subway car at Xiangmihu Metro Station around 2 a.m. Sept. 26, 2014.

    3. Workers conducting routine maintenance at Xiangmihu Metro Station around 1 a.m. Sept. 26, 2014.

    4. Residents celebrating at the opening ceremony of the Huanzhong Line on June 22, 2011.

    5. Passengers taking the inaugural ride on the Longhua Line when it opened June 12, 2011.

    6. Staff members work in front of surveillance screens inside a control room.

    7. A train arriving at Dafen Station on the Longgang Line on March 21, 2011.