Doubling down | The Economist
▻http://www.economist.com/news/china/21699167-plans-new-railway-line-tibet-pose-huge-technological-challengean
“A COLOSSAL roller-coaster” is how a senior engineer described it. He was talking about the railway that China plans to build from the lowlands of the south-west, across some of the world’s most forbidding terrain, into Tibet. Of all the country’s railway-building feats in recent years, this will be the most remarkable: a 1,600-kilometre (1,000-mile) track that will pass through snow-capped mountains in a region racked by earthquakes, with nearly half of it running through tunnels or over bridges. It will also be dogged all the way by controversy.
Chinese officials have dreamed of such a railway line for a century. In 1912, shortly after he took over as China’s first president, Sun Yat-sen called for a trans-Tibetan line, not least to help prevent Tibet from falling under the sway of Britain (which had already invaded Tibet from India a decade earlier). Mao Zedong revived the idea in the 1950s. In the years since, many exploratory surveys have been carried out.