RIDING ON THE SLOW TRACK

A documentary series soon to be aired on CCTV tells stories of China's legendary green trains, Xu Fan reports.

Television producer Ren Chongrong remembers the day when she crawled through a window to board a train that was headed from Beijing to her hometown Chongqing in 1994.

It was during a winter vacation for Ren, then a student at China Journalism College, which was based in Beijing and shut down in 2002.