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Roads pollute cities, eat up public space and fragment habitats. Could moving them underground help?
Underground transportation infrastructure (e.g., urban roads and highways, public transit subways, grade-separated and underground freight railroads, high speed rail, and pedestrian rights of way) can address multiple growth-related challenges in urban areas
This chapter traces the evolution of urban underground space and illustrates how the progressive and piecemeal development of underground space poses significantly more restrictions on future development than in the cases of surface facilities and infrastructure development.
Underground engineering can provide a means to reduce energy use, increase green space preservation, sustainably process and store water and wastes, securely and efficiently site critical infrastructure, prevent and reverse degradation of the urban environment, and enhance quality of life.
1 de may. de 2016 · These giant elevated structures through down-town areas are now seen as unsightly, noisy, possibly unsafe, and provide only limited access to areas adjacent to the freeway. Many cities are considering or in the process to replace the elevated highways by urban road tunnels.
underground space. With global urban population densities set to rise dramatically, exploiting the underground realm will make cities less congested, less polluted, more sustainable, and greener places to live and work. Facilities that do not need to be on the surface can be located underground, resulting
13 de sept. de 2018 · Given the saturation of existing metropolitan spaces, underground roads could be the perfect solution for future urban transportation problems. Going Underground 55% of the world’s population live in urban areas, a figure that is expected to grow to 68% by 2050, says a recent UN report.
