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China's high-speed rail revolution

15 July 2014 Last updated at 00:11 BST

China has a larger high-speed rail network than the entire European Union or the United States, according to a new World Bank report.

The train network is set to double by 2020 and is a big part of China's economic strategy - enabling companies to trade directly with Central Asia and Europe.

And China's railway builders are also ready to take their plans global, as Carrie Gracie reports.