Gou Fawei is a police officer in Northwest China's Ningxia Hui autonomous region, responsible for keeping the railway free of any pedestrians, herdsmen and animals. [Photo/chinadaily.com.cn]

Luo Yakun, the wife, is a police officer responsible for security checks at a train station in Northwest China's Ningxia Hui autonomous region. [Photo/chinadaily.com.cn]

The couple have figured out a way to meet halfway along the railway and share handmade dumplings for dinner. [Photo/chinadaily.com.cn]

The couple have figured out a way to meet halfway along the railway and share handmade dumplings for dinner. [Photo/chinadaily.com.cn]

The couple have figured out a way to meet halfway along the railway and share handmade dumplings for dinner. [Photo/chinadaily.com.cn]