Shaping sustainable cities

Now, I think one can’t talk about how cities innovate without talking about how they’re governed because things don’t just happen. Yes, cities are full of entrepreneurs, people with great ideas of how to bring about change, but you also have to have an infrastructure whereby, for example, you attract exactly that sort of young person, entrepreneurial spirit, which might bring to a particular environment the freshness and new thinking of ideas that you would otherwise not have.

One great example of this is the city of Barcelona. Interestingly, Barcelona is a city that at many levels hits the wrong buttons in terms of aging population because of the great food and environmental conditions next to the Mediterranean Sea. Some people live very long, and a lot of Catalonians, Barcelonans, over the last 30, 40 years – particularly in the post-Franco era – left: they had access to other cities in Europe and emigrated there for some time.

So, in the 1980s and 1990s, Barcelona had to respond, and what it did was to take one of its dying industrial areas, which could no longer support brickmaking or other industrial uses in, more or less, the heart of the city, and literally rewired it. In other words, it put very advanced cables underground and allowed new companies to build offices, which took advantage of these new technologies and good connectivity.

It’s also about rebalancing the economics of the city, making it more affordable. Therefore, social housing or affordable housing becomes very much part of the situation. You can’t innovate without investing at all levels in public infrastructure: in modes of transport, in getting to work by cycling and in promoting uses of sustainable green transport. So, innovation in cities is absolutely something that they can do, and one fundamental thing is to learn from one another. What can Barcelona learn from Singapore, for example? What can London learn from Stockholm? What can Paris learn from Portland? Singapore is a city that only 40, 50 years ago invented itself into one of the best-performing efficient urban models anywhere in the world.

When one talks about public transport in the city and making designing a city to be more sustainable, one tends to focus just on what is the form of transport. In other words, to get to my place of work or study or elsewhere, do I have to get into a car and travel two hours? Of course, it’s very closely related to the physical form of the city.

If you live in Los Angeles, you have no option but to get into a private car and drive for, on average, an hour and a half to two hours a day. In São Paolo or Mexico City, commuting times are something like four hours a day to get from the periphery to your place of work and back. Therefore, the key answer to the question of sustainable public transport is the compact city: making a city denser so that people live closer to one another and don’t have to travel as much. It’s the city which promotes proximity that is the solution. Once you have a tighter city where you don’t have to travel 30 miles to get from one end to the other to go shopping, to go to study, to go to work and to go and entertain yourselves, you begin to have the bones of a sustainable city, of which the European city must be one of the successful models. Of course, Seoul, Hong Kong and Singapore are 20th century, 21st century versions of that successful, dense, compact and well-connected city.

When it comes to what forms of transport can operate more efficiently in this, the bus rapid transit system, BRT, as it’s called, is an example; cities like Bogotá, Curitiba, in Brazil and Johannesburg in South Africa have all begun to use these more collective forms of public transport, which not only replace the car but make it much quicker to get to work.

Let’s not forget that in my city, London, beyond the COVID crisis, something like 90% of people use public transport to get to work in the city of London, and this is the richest part of the UK economy. Many people are not only wealthy, they’re millionaires or even billionaires – but the most efficient way of getting there is via public transport. You can’t park a car there. The same, of course, applies to New York City and Hong Kong. Underground or overground trains connected to very efficient surface connections, such as walkable streets or cycle lanes, and integrating the more metropolitan-type transport, like the bus rapid transport, underground system or rail, at a suburban regional level – with well-designed and highly desirable spaces where you want to walk the last mile because it’s pleasant – is where I see the solution of an integrated transport system.