8/28/2013

The idea of building the Hyperloop, a potentially revolutionary "fifth mode of transportation," has numerous aspects that need improvement to make the project a reality, according to this article. Ted Zoli, national bridge chief engineer at HNTB, suggests the project should be constructed at grade rather than on elevated piers, and horizontal directional drilling should be used for the tunnel work to accommodate the system's 88-inch-diameter passenger pipe, all to help cut the construction costs. "[Elon Musk's] proposing a whole new technology and a slightly different route and [differently] sized trains and more frequent service," and the "engineering is quite intriguing," said William Ibbs, professor of civil and environmental engineering at the University of California-Berkeley.

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