The additional track of rail, when completed, will double the capacity of the line to 200,000 tonnes.

新修铁路一旦竣工，原有运输能力将翻一番，达20万吨。

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This bridge is all constructed now according to the expressway standard. The bridge deck is designed by the double-way 6-lane and the double-line rail traffic space is remained.

该桥近期全线按高速公路标准建设，桥面设双向6车道，并预留双线轨道交通空间。

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Built 30ft above the streets, on a long -abandoned, elevated freight rail line, the public park is now double in size.

BBC: New York��s floating freight line

Declared the European Green Capital in 2010, Stockholm is investing in new construction like the City Line tunnel, which will put commuter rail lines underground and double the number of trains able to move through the city.

BBC: Living in: Stockholm