How much city can humans tolerate and how much can the world And how can the urbanization of our planet turn into a story with a happy ending The notable architect and urbanization expert Carlo Ratti provides answers Interview Volker Paulun NOT EXPANDING THE CITY INTO NATURE BUT BRINGING NATURE INTO OUR CITIES This is a recurring question In terms of sustainability and energy con sumption the dense city that reduc es urban sprawl is de nitely to be preferred also by the way over liv ing in the country By densi cation you mean vertical growth Not necessarily Who would guess that Barcelona has one of the highest densities in the world It looks like a rather low rise city But its court yards unlike towers provide a very e ective use of the ground as proven by mathematical calculations in a pioneering study by Professors Lionel March and Leslie Martin from Cambridge University in the 1960s What speaks against urban sprawl The protection of nature Urban and suburban development con cepts from the 20th century like the Garden City by the Briton Ebenezer Howard or Frank Lloyd Wright s Broadacre City helped turn our cit ies into endless suburbia and con tributed to the destruction of the countryside I think that today s ap proach can be di erent not expand ing cities into nature but bringing nature into our cities Sounds good but is it feasible Thanks to new hydroponics or light ing technologies it is Together with the Bjarke Ingels Group BIG and our 40 000 or even 50 000 people per square kilometer particularly in Asian and African cities like Dha ka or Lagos the urbanization of the world leads to extreme population density Can modern technology be of help if densi cation continues to increase Only marginally The possible popu lation density depends more on so cio cultural factors What is tolerable in terms of proximity varies across cultures What type of growth is health ier for a big city the horizontal kind as practiced by London or Los Ange les or the vertical kind which can be seen in many Asian metropolises Based on their study from the 1960s Lionel March and Leslie Martin proposed a radical redesign of parts of Manhattan With floor space remaining the same the average height of buildings would drop from 21 to 7 stories due to construction with residen tial blocks with light lled courtyards outlook 85

Vorschau Schaeffler tomorrow 02-2018 EN Seite 85
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