Architecture: What does Big Data mean for our cities?

Size, population and the number of petrol stations can yield fascinating insights into how our cities function best - but we must remember that any self-organising system is more than the sum of its parts.

In a blog post last year, the scientist Stephen Wolfram, creator of the Mathematica software and the “computational knowledge engine” Wolfram|Alpha, suggested that the next revolution would be in “personal analytics”. He demonstrated this idea by collating and charting his life using his vast archive of personal data, including every email he had sent since 1989. In this way, he could see which years were the most busy or what times of the day he sent the most emails. His desktop calendar also revealed data about the course of an average day, while his phone records showed who he was talking to and for how long.

Wolfram’s company has already released a similar app on Facebook, so that people can chart their personal data to see everything from which friends live the highest above sea level to how networks of contacts interweave. We are, Wolfram might suggest, the sum of our information trail. Our lives have become data sets to be probed, charted and, once collated, analysed for efficiencies and savings.

In the new age of “Big Data”, does the same go for our cities? Just as Wolfram has reduced his life to packets of data, many urban thinkers now believe that the city is no longer just a place but a living field of information to be harvested.

Big claims are being made for this notion. Le Corbusier once called for the rationalisation of the city, making it a machine for living; today, many think that data, in the words of Assaf Biderman, the associate director of MIT’s Senseable City Lab, will make our cities “more human”.

Urban living used to be an art. Now, it is a science, burdened with the heavy-sounding label of “quantitative urbanism”. It is preached with the moral fervour of a Victorian public health official and involves some of the biggest names in the software, consultancy and infrastructure industries: IBM, Cisco, Philips, McKinsey & Company and Booz Allen Hamilton, among others.

Yet away from the hard sell, does this quantitative approach to ourselves and our cities tell us anything? Is the accumulation of data the same as the development of knowledge?

In 2003, the British-born physicist Geoffrey West started to study the metabolism of cities and soon came up with some surprising results. West wanted to find out whether the zoological rules first devised in the 1930s by Max Kleiber – which showed how all forms of life, from a fly to an elephant, follow the same equation that combines size, energy use and life expectancy – might apply to something as large and chaotic as a city.

West and his team at the Santa Fe Institute gathered together a huge data set: measurements of scale for urban centres in the US of over 50,000 citizens; statistics on “gross metropolitan product”; crime figures; the amount of money made by petrol stations in all 50 states; patents, as well as tax returns. Then, they put it all together into one database. They also included figures from the National Bureau of Statistics of China and Eurostat and even measurements of road surfaces from across Germany, as well as the amount of copper used in overhead wiring.

Surprisingly, the results reduced the life of a city to a mathematical rule: a Kleiberesque “unified theory of urban living”. So, while we can view individual cities as having their own particular history and personality, underlying rules apply that mean they have a lot in common with each other.

Yet cities do not follow Kleiber’s law exactly – rather than slowing down as they get bigger, cities speed up: they become more productive, creative, efficient and sustainable. As West points out, if you tell him the size and population of a city, he can cal - culate its crime rate, the number of patents it produces a year, how many petrol stations it needs, how many HIV-positive people reside there. According to West, the essential characteristics of a city can be reduced to an equation. Size matters, it seems.

Other urban thinkers, meanwhile, are starting to use the mathematics of complexity in an attempt to rethink how cities work. In this method, our understanding of networks and their emergent properties allow us to see how cities might work like beehives, ant or termite hills, the flow of liquids or the neural patterns of the brain.

This new urbanism – which views the city as a combination of networks and information – does not, in the words of John Keats, unweave the rainbow but forces us to question some of our long-held assumptions: what we consider to be the ideal size for a city; how we can use the qualities of complexity to rethink how the city is organised. Often, these discussions are conducted in the esoteric language of calculus and network theory. However, this can only have an impact when it is once again translated back into the language of the city – a place made up of people.

However, it would be wrong to think that data is the story. Information is the message, not the medium, and we need to be careful that this full-throttle embrace of data does not wash away the many other ways of looking at the city.

Just as Wolfram’s personal analytics do not show us the full extent of his life story, quantitative urbanism does not give us a complete picture of the modern city with all its elements. As complexity theory tells us, one of the characteristics of a self-organ - ising system – such as a city or a beehive – is that it will always be more than the sum of its parts.

Only connect. Our cities are viewed by planners as data sets. Photograph: Getty Images.

This article first appeared in the 15 July 2013 issue of the New Statesman, The New Machiavelli

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Recess confidential: Labour's liquid party

Sniffing out the best stories from Westminster, including Showsec, soames, and Smith-side splits.

If you are celebrating in a brewery, don’t ask Labour to provide the drinks. Because of the party’s continuing failure to secure a security contractor for its Liverpool conference, it is still uncertain whether the gathering will take place at all. Since boycotting G4S, the usual supplier, over its links with Israeli prisons, Labour has struggled to find an alternative. Of the five firms approached, only one – Showsec – offered its services. But the company’s non-union-recognition policy is inhibiting an agreement. The GMB, the firm’s antagonist, has threatened to picket the conference if Showsec is awarded the contract. In lieu of a breakthrough, sources suggest two alternatives: the police (at a cost of £59.65 per constable per hour), or the suspension of the G4S boycott. “We’ll soon find out which the Corbynites dislike the least,” an MP jested. Another feared that the Tories’ attack lines will write themselves: “How can Labour be trusted with national security if it can’t organise its own?”

Farewell, then, to Respect. The left-wing party founded in 2004 and joined by George Galloway after his expulsion from Labour has officially deregistered itself.

“We support Corbyn’s Labour Party,” the former MP explained, urging his 522,000 Facebook followers to sign up. “The Labour Party does not belong to one man,” replied Jess Phillips MP, who also pointed out in the same tweet that Respect had “massively failed”. Galloway, who won 1.4 per cent of the vote in this year’s London mayoral election, insists that he is not seeking to return to Labour. But he would surely be welcomed by Jeremy Corbyn’s director of communications, Seumas Milne, whom he once described as his “closest friend”. “We have spoken almost daily for 30 years,” Galloway boasted.

After Young Labour’s national committee voted to endorse Corbyn, its members were aggrieved to learn that they would not be permitted to promote his candidacy unless Owen Smith was given equal treatment. The leader’s supporters curse more “dirty tricks” from the Smith-sympathetic party machine.

Word reaches your mole of a Smith-side split between the ex-shadow cabinet ministers Lisa Nandy and Lucy Powell. The former is said to be encouraging the challenger’s left-wing platform, while the latter believes that he should make a more centrist pitch. If, as expected, Smith is beaten by Corbyn, it’s not only the divisions between the leader and his opponents that will be worth watching.

Nicholas Soames, the Tory grandee, has been slimming down – so much so, that he was congratulated by Tom Watson, Labour’s deputy leader, on his weight loss. “Soon I’ll be able to give you my old suits!” Soames told the similarly rotund Watson. 

Kevin Maguire is away

I'm a mole, innit.

This article first appeared in the 25 August 2016 issue of the New Statesman, Cameron: the legacy of a loser