Hainan
Rail

Today's Hainan is ringed by standard-gauge railways. Since 2004, a rail ferry connects the island's railroad network to Guangdong, mainland China. In 2005, Ministry of Communications allocated 20 million yuan (US$2.4 million) to set up a committee to research and study the possibility of a bridge or tunnel link connecting the island to the mainland. From the ferry terminal, located near Haikou railway station (west of Haikou), freight and passenger trains arriving from the mainland can proceed on the Hainan western ring railway along the island's west coast, via Dongfang to Sanya. This railway line has been developed over several decades, starting with a few short 3 ft 6 in (1,067 mm) narrow gauge lines constructed during the Japanese occupation in the early 1940s.

There is a high-speed railway ring around the island, formed by the eastern ring and western ring along the island's coast. Both high-speed railways are connected with Haikou and Sanya. There are 15 stations along the east coast, and 16 stations along the west coast. Trains are designed to travel at 250 km/h (160 mph) on the east ring, and 200 km/h (120 mph) on the west ring. The total length of eastern ring is 308.11 km (191.45 mi), while the western ring is 344 kilometers (214 mi). The first eastern ring high-speed train run started on 30 December 2010, and the Hainan western ring high-speed railway started its operation in 2015.
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