By 2011, 52% of the global population has lived in cities and by middle of this century it would have increased to almost 67%.1 Asia will continue to have half of the world’s mega cities. In 1975, eighty cities in Asia had a population greater than one million. By 2025, it is estimated that this will rise to 332 cities (United Nations, 2007). In many Asian cities, the motorization levels have reached double the national values. To cater to this increase in number of vehicles, countries like China and India are rapidly building more roads. However, building more roads is a solution that creates a vicious cycle of further inducing travel demand, increasing car use and again, the need for roads.
Number of Pages