Line S2 (BCR)

Trains can reach a maximum speed of 160 kilometres per hour (99 mph). A trip from Huangtudian to the Badaling Great Wall takes about 1 hour and 22 minutes.[6] There are regular departures throughout the day from Huangtudian, with an average of one train per hour during operating hours.[7] Tickets can be purchased from ticket offices of stations along route on the day of travel only. The Beijing Transit card is accepted on this route.[8] Train identification numbers are prefixed with the letter 'S'. The line primarily serves tourists traveling to the Great Wall of China at Badaling.

Line S2 uses the NDJ3 diesel locomotive marked "Great Wall" (Chinese: 长城号; pinyin: Chángchéng Hào) in a seven-car push-pull configuration (L+7T+L). Accommodation comes in 'soft-seat' class only with a 2+2 (first class) or 3+2 (second class) layout. The seats were reversible, but that feature has been removed. Between Nankou and Badaling stations, the train makes a reversal at a switch-back junction. Although all stations are equipped with high-level platforms, trains are equipped with retractable steps and can also serve low-level platforms. On-board facilities include air-conditioning and heating, toilets, hot-water dispensers and a cafe-bar selling tea, coffee, soft drinks, beer and snacks. Smoking is not permitted on the train.