Asian urbanisation boom puts great demands on infrastructure
Ronald Man says that as millions of people continue to flock to live and work in Asia's cities, and the lure of urban life grows stronger, huge investments will have to made in infrastructure

Asia's great urbanisation wave is changing the face of the continent's cities on an unprecedented scale. Take China - between 2005 and 2010, the country's urban population increased by more than 100 million, around 10 times the number of European settlers who took part in the great wave of immigration to the US between 1820 and 1880.
And China is only halfway through the process of urbanisation. At the same time, that giant human magnet - the attraction of city life - is only going to get stronger throughout the region.
The United Nations estimates that Asia's urban population will increase by 650 million by 2030, led mainly by China, India and Indonesia. We estimate that to meet their needs, US$11.5 trillion will have to be invested in infrastructure over this period, the equivalent of 80 per cent of the region's current annual gross domestic product.
Although Asia's infrastructure has improved since 2007, there is still much more work to be done
A new wind is blowing across the region. In Indonesia, Jakarta - with a population larger than London's - recently started building its first subway system. Thailand unveiled its most ambitious public infrastructure programme ever, including plans to transform the country into a key conduit ahead of the expected launch of an Asean Economic Community in 2015. The Philippines plans to spend a record amount on infrastructure this year after years of sluggish investment. And in Malaysia, Prime Minister Najib Razak is set to speed up infrastructure investment following his recent re-election.
Although by our calculations Asia's infrastructure has improved since 2007, there is still much more work to be done and no time to waste. At its current level of development, the region stands to benefit most from infrastructure investments that are made now.
But there is no "one-size-fits-all" solution and the state of infrastructure in Asian economies reveals a lot about the region's diversity, be it economic, political or cultural.
We identify three groups of economies within Asia. First are what we call the "foundation" economies: the Philippines, Indonesia, Vietnam, Thailand and India. They have the weakest infrastructure in Asia and even immediate improvements in their systems may not have much impact on economic development for several years. Funding represents a big challenge too.
These economies have tried to promote the use of public-private partnerships, but the current rate of infrastructure investment is likely to prove insufficient to accommodate their growing urban populations; these economies may face an urban infrastructure investment shortfall of US$1 trillion over the next two decades.