The goal is not simply to beat the sea traffic but to invigorate inland economies and trade . For example, the land distance between Kiev and Chengdu via train is the same as distance of Chengdu to Shanghai and Piraeus to Kiev. That means it' preferable to have land access between Chengdu and Kiev to promote trade. Besides this will also allow Central Asia countries to join the trade.How much is 6.57 million tonnes? It's a huge increase in percentage but I suspect it is still miniscule compared to shipping