Infrastructure is the world’s biggest growth market, with vast investment taking place in the transport, energy, water and communications networks that underpin every aspect of modern life. In developed countries, the emphasis is on upgrading crumbling facilities after decades of underinvestment. In the rapidly growing economies of the Middle East, Asia and Latin America, it’s about building new networks from scratch, even entire new cities, as the global population grows to a predicted 9.5bn by 2050 and mass urbanisation continues. A 2013 report from the McKinsey Global Institute estimated that it would take US$57trn worth of investment by 2030 just to provide the infrastructure to meet projected GDP growth – 60% more than had been spent in the previous 18 years. In this ten-page cover feature for Modus, the magazine of the Royal Institution of Chartered Surveyors, I led a whistle-stop tour of the opportunities for its members: with so many sub-sectors in so many countries, the biggest challenge is working out where to start.