S字头列车:城郊专运客车
Running at 100km/h as the highest speed, this type is used for communicating city center and the suburban areas. It has no soft seats and sleeper berths as it only travels within short distance in day times. Currently, the S2 series travel between Beijing North Railway Station and the Yanqing County in the northern suburb of the city with stops at Qinghuayuan, Nankou, and Badaling Great Wall.
最高时速100公里,是城区和郊区的往返车。由于路程短,所以没有软座和软卧。目前,北京北发往延庆列车S2线,停车点清华园、南口、八达岭等等。