Elon Musk presents underground LA tunnel project

Entrepreneur Elon Musk has given updated details of a project to build high-speed transport tunnels underneath Los Angeles in a bid to combat traffic and said he wanted to work with the city's subway operator.

Commuting by subway? What you need to know about air quality

,Four more major Indian cities will soon have their own metro lines, the country's government has announced. On the other side of the Himalayas, Shanghai is building its 14th subway line, set to open in 2020, adding 38.5 ...

Inflatable plug for subway tunnels demonstrated

A giant, inflatable structure designed to prevent flooding in subways was rolled out, literally, for media observers inside a full-scale, mock subway tunnel. As the video shows, in under five minutes it is nearly filled with ...

Boston subway system covered in microbes, but they're not harmful

Boston's subway system, known as the T, might be just as bacteria-laden as you'd expect but organisms found there are largely from normal human skin and incapable of causing disease, according to a study published June 28 ...

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