The world's largest annual human migration has started, as China's Spring Festival travel rush began on Friday. Amid all the hustle and bustle, how do disabled and elderly travelers get by?

Yang Jing works in a help center at Taiyuan Railway Station, located in the capital city of north China's Shanxi Province. Her main role is to assist disabled and elderly passengers. After helping one traveler onto the train, she often has to run back to the help center to assist others.