ASTANA in Kazakhstan is one of the world’s most remote capitals, surrounded by thousands of kilometres of empty steppe. This summer Astana attempted to launch itself onto the global stage by hosting the World Expo, which closed on September 10th and underwhelmed many attendees. But there are other ways to have an impact. On the city’s north side, away from the Expo’s exhibits, a series of diesel trains, each pulling dozens of containers, roll through the old railway station. Most are heading from China to Europe. Last year over 500,000 tonnes of freight went by train between the two, up from next to nothing before 2013. Airlines and shipping firms are watching things closely.

The trains rumbling through Astana result from a Chinese initiative, in tandem with countries like Kazakhstan, to build a “New Silk Road” through Central Asia. The earlier overland routes were once the conduits for most trade between Europe and China and India; they faded into irrelevance when European ships started circumnavigating the Cape of Good Hope.

China has long wanted to develop its inland regions and push industry to “go west”, in order to spread economic growth more evenly. Manufacturers have been loth to shift, in part because of the higher cost of moving goods to ports for export. Developing a rail-freight network to Europe—an important part of China’s “One Belt One Road” policy—opens up a new route to market for its poorest areas. The land route through Central Asia is relatively short. A container ship too large for the Suez canal must make a 24,000km journey to reach Europe. Trains travel no more than 11,000km to reach the same destination.

Kazakhstan has spent over 1.1trn tenge ($3.2bn) on upgrading its railway lines and rolling stock since 2011. That includes $250m on the Khorgos Gateway, a dry port at the border with China that lifts containers from Chinese trains onto Kazakh ones to overcome a change in track width (a problem that has stymied previous efforts to build railway routes between Europe and China).