The existence of large and very large cities is a worldwide phenomenon. and has beena subject of much research and concern, The potentiai difficulty in tackling the issue isnow well understood. The number of large and...The existence of large and very large cities is a worldwide phenomenon. and has beena subject of much research and concern, The potentiai difficulty in tackling the issue isnow well understood. The number of large and very large cities is the greatest in China: there aretwenty-eight cities of 50,000 to one million population, and thirty of over one million, thelatter being regarded as meg-citics. There are nine of over two million population,amongst which Beijing has 10.4 million(1990)and Shanghai has 12.8 million(1990).Planning and research of the mega-cities tend to be locally specific and what is lackingseems to be an overview of the common and general issues in their development.展开更多
文摘The existence of large and very large cities is a worldwide phenomenon. and has beena subject of much research and concern, The potentiai difficulty in tackling the issue isnow well understood. The number of large and very large cities is the greatest in China: there aretwenty-eight cities of 50,000 to one million population, and thirty of over one million, thelatter being regarded as meg-citics. There are nine of over two million population,amongst which Beijing has 10.4 million(1990)and Shanghai has 12.8 million(1990).Planning and research of the mega-cities tend to be locally specific and what is lackingseems to be an overview of the common and general issues in their development.
