It has long been realised that financial centres, are bleak and often miserable places at night and weekends when the office workers have gone home. Using buildings for just a fraction of the day is not efficient, yet even pulsing mega-cities in the far east, where people sleep in capsules and live in hutches, accept this inefficiency as a by product of the wealth that is created in those towers. In a tongue in cheek proposal for the 2012 eVolo Sckyscraper Competition, David Giraldeau and Alexandre Guilbeaulthave proposed collapsible towers that can be put away when they are not required.
The idea is that the towers would collapse or expand in response to their occupation, weather, programme or other criteria to be defined. The proposal raises a scenario of a city skyline as something like a 3d graph of the city's spatial occupation. Fluctuating by the hour with the passage of the sun or working patterns of the day.
