In 1930, only around 6,000 passengers were travelling by air. By 1934, this had risen to just under 500,000. Fast-forward to 2019 and it had exploded to 4 billion travelers.
In fact, the International Air Transport Association (IATA) projects 8 billion air travelers annually by 2040. The demand for air travel is booming.
To prepare for this, 425 major construction projects (worth around US$450 billion)…
