The launch in December of high-speed rail lines linking Guangzhou with Nanning and Guiyang should make it easier for millions of migrant workers to travel home to Southwest China during Spring Festival this year.

In the past, even with extra trains running on ordinary rail lines during the period, demand still outstripped supply, with not enough trains to get everyone home.

The Guangxi Zhuang autonomous region and Guizhou province, where Nanning and Guiyang are located, supply 14 million migrant workers to Guangzhou, according to Guangzhou Railway (Group) Corp.