Some children and their family members get ready to board a train from Hangzhou to Guiyang, capital of southwest China's Guizhou Province, in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year. [Photo/Xinhua]

A boy looks at a train from Hangzhou to Guiyang, capital of southwest China's Guizhou Province, while waiting to get in the train in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

A trainman helps a child board a train from Hangzhou to Guiyang, capital of southwest China's Guizhou Province, in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

A girl from southwest China's Guizhou Province follows her mother into Hangzhou train station to wait for their train home in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Her parents now work in Fuyang of Zhejiang. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

Tian Xingfu (C), an 11-month-old boy from Huaihua in central China's Hunan Province, waits for the train home with his parents at Hangzhou train station in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

A child plays by the side of a window on a train from Ningbo of Zhejiang to Bengbu of east China's Anhui Province in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

Zhao Yongchun, a five-year-old boy from Xi'an in northwest China's Shaanxi Province, eats instant noodles while waiting for the train at Hangzhou train station in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Zhao's parents now works in Yiwu of Zhejiang. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

A woman holds a baby to wait for their train home at Hangzhou train station in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

A child looks out of a window on a train from Ningbo of Zhejiang to Bengbu of east China's Anhui Province in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

A child looks out of a window of a train from Hangzhou to Guiyang, capital of southwest China's Guizhou Province, in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

Two children look out of a window on a train which is about to pull out in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

Tian Xin, a three-year-old girl from central China's Hunan Province, waits for her train home in her mother's arms at Hangzhou train station in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

A child plays by the side of a window on a train which is about to pull out in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.

A child plays by the side of a window on a train which is about to pull out in Hangzhou, capital of east China's Zhejiang Province, Jan. 22, 2013. Many migrant workers and their children have started to return home in order to avoid the Spring Festival travel peak that begins on Jan. 26 and will last for about 40 days. The Spring Festival, the most important occasion for a family reunion for the Chinese people, falls on the first day of the first month of the traditional Chinese lunar calendar, or Feb. 10 this year.