Guangzhou Railway Station (the the main railway station in Guangzhou) will be temporarily out of service for Shenzhen-Guangzhou bullet trains during this period, in order to ease the pressure on Guangzhou Railway Station. Check out Guangzhou Train Transport.
Passengers taking D-trains from Shenzhen to Guangzhou and needing to transfer to other trains in Guangzhou Railway Station should allow more transit time.
The Spring Festival travel rush 2013 will start on January 26, lasting 40 days to March 6. During this period, railway traffic in China is quite congested, especially in metropolises including Beijing, Shanghai, Guangzhou, and Shenzhen.