
The Next Frontier in Urban Design Will Send You Undeground
The 21st century's architectural frontier is shifting from skyscrapers to underground spaces, driven by urban density and environmental considerations. Architect James Ramsey and developer Daniel Barasch are pioneering this movement with their proposal for the 'Lowline' in New York City, an underground park envisioned for a disused trolley terminal beneath Delancey Street. This innovative project aims to transform a 65-year-old, subterranean space into a vibrant public park, complete with pathways, benches, and trees, all accessible regardless of weather conditions.
While the absence of natural light presents a challenge, Ramsey has developed 'remote skylights.' These systems utilize pole-mounted receptors above ground, connected via fiber-optic cables to panels in the underground ceiling, to channel genuine sunlight into the space. The Lowline project is currently seeking political support and an estimated $60 million in funding, building on the success of similar urban revitalization projects like the High Line, which repurposed an elevated rail trestle.
The concept of underground construction offers several advantages, as highlighted by Dutch geologist Eduardo de Mulder. Despite the initial costs and technical complexities of excavation, particularly in areas with high water tables, underground spaces are more cost-effective to maintain. They are less susceptible to weather damage, eliminating the need for exterior cleaning and repairs. Furthermore, the stable temperatures below ground significantly reduce energy consumption for heating and cooling, offsetting the costs associated with artificial lighting.
Cities experiencing extreme climates or rapid urbanization are leading the charge in underground development. Shanghai and Beijing, for instance, have seen their underground real estate expand by approximately 10% annually, with Beijing projected to have 34 square miles of underground space by 2020. Helsinki's master plan includes a substantial expansion of its tunnel networks and over 400 underground facilities, including a seawater-cooled data center.
Despite the practical benefits, the psychological aspect of underground living remains a hurdle. Esteban Suarez, an architect from Mexico City, proposed the 'Earthscraper,' a 65-story inverted pyramid designed to extend deep into the earth, incorporating a central shaft to provide natural light and air. While this ambitious project is yet to be realized, the historical precedent of human subterranean habitation is evident in ancient sites like the Derinkuyu Underground City in Turkey. This ancient complex accommodated up to 20,000 people across at least eight levels, featuring living quarters, workshops, food storage, and even livestock pens, with stone slabs indicating its use as a refuge from invaders. These historical examples demonstrate humanity's long-standing capacity for and adaptation to living below the surface, suggesting that modern innovations in lighting and ventilation could overcome contemporary psychological barriers.
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