China's railway traffic during the May Day holiday is expected to peak Tuesday with about 14 million passenger trips.
About 11.56 million rail trips were made on Monday, up 5.9 percent year on year, according to the China Railway Corporation, which has worked to improve railway operating plans by adding 810 more trains to meet increasing travel demand.
Train services were improved for surging tourist numbers. Railway authorities in Shaanxi Province arranged for 88 high-speed trains each day between Mount Huashan, a scenic mountain known for its steep peaks, and provincial capital Xi'an.
The number of tourists has boomed during the three-day holiday that started Sunday.
In the face of an economic slowdown, China is fostering new growth points in tourism and other service industries. The country's tourism revenue went up 15.9 percent year on year in 2017, more than double its GDP growth.