Before 1950, most of the largest cities were found in the developed world – for example ... world cities – for example Sao Paulo, Mexico City and Mumbai. This growth is expected to continue ...

In developed countries, cities have tried to manage this problem by introducing traffic management schemes.

CHINA once revealed ambitious plans to build a £4.2billion modern "eco-smart city" in the heart of South Africa. Dubbed the "New York of Africa", Modderfontein near Johannesburg was supposed to ...