Urbanisation In 1800, only 2 per cent of the world's population was urbanised. In 1950, the figure was 30 per cent and, by 2000, 47 per cent of the world's population was urban.
More than half of the world's population will be living in urban areas by 2008.
The urbanisation process in developed countries has stabilised, with about 75 per cent of the population living in urban areas.By 2030,84 per cent of the population in developed countries will be living in urban areas.
Fifty per cent of Latin America and the Caribbean were urbanised by 1960.Today the figure is in the region of 75 per cent.
Though Africa is predominantly rural, with only 37.3 per cent living in urban areas in 1999, its growth rate of 4.87 per cent means Africa is the continent with the fastest rate of urbanisation.
In 1999, 36.2 per cent of the Asian population was urbanised and the urban growth rate is in the region of 3.77 per cent.
The urban population of developing countries is expected to reach 50 per cent in 2020.
By 2030, Asia and Africa will both have higher numbers of urban dwellers than any other major area of the world.
Agglomerations In 1950, New York was the only city with a population of more than 10 million inhabitants.By 2015, it is expected that there will be 23 cities with populations in excess of 10 million - 19 of them will be in developing countries.
In 2000, there were 22 cities with populations of between five million and 10 million.There were 402 cities with a population of between one million and five million people, and 433 cities with between 500,000 and one million.
Shelter Sixty-one per cent of countries in the world have constitutions or national laws that protect against forced evictions.
Less than 20 per cent of households in Africa are connected to piped water and only 40 per cent have access to water within 200m of their houses.
Society In the developing world,5.8 per cent of children in cities die before reaching the age of five.
In cities of the developing world, one in every four households lives in poverty.Forty per cent of African urban households and 25 per cent of Latin American urban households are living below locally defined poverty lines.
Environment Less than 35 per cent of cities in the developing world have their waste water treated.
In countries with economies in transition,75 per cent of solid wastes are disposed of in open dumps.
Seventy-one per cent of the world's cities have building codes with anti-cyclone and anti-seismic building standards based on hazard and vulnerability assessments.
Buses and minibuses are the most common mode of transport in the world's cities.Cars are the second and walking is third. Travel time in Asian cities is the longest, with an average of 42 minutes per trip.
Economy Thirty-seven per cent of the people in cities of the developing world are employed within the informal sector.
Sixty-three per cent of the world's cities have established new public-private partnerships in the past five years.