Our Cities Ourselves asks ten of the world's leading architects to envision ten global cities in 2030. In 2030, 60 percent of the global population–or five billion people–will live in urban areas, mostly in developing nations.

Ahmedabad has 1.45 million vehicles and that number is growing at 7% per year.

The number of cars in Budapest is nearly double the number of people that live in the city.

Argentina’s current population is more than 41 million people, nearly a third of whom live in Buenos Aires.

A recent report indicated that road accidents in Dar es Salaam account for 20% of deaths in Tanzania.

Guangzhou has twice the population of Hong Kong and is the largest city of the Pearl River Delta

Non-motorized transport accounts for 28.8% of all transportation used.

Minibus taxis carry 72% of all public transport passengers in the city on a daily basis.

Mexico is the 14th largest emitting country in the world, and the largest emitter in Latin America.

MTA subways, buses, and railroads provide 2.6 billion trips each year to New Yorkers and visitors.

Bicycles account for only 3% of transport in Rio.