SPP 1233: Megacities - Megachallenge: Informal Dynamics of Global Change

特大城市是全球化进程的结果，并受到全球生态，社会经济和政治变化的影响。反过来，它们也因其发展动态而影响这些变化。新的不仅是迄今为止未知的数量扩张、人口高度集中、基础设施、经济实力、资本和决策的规模，以及所有发展进程的过度和部分自我激励的加速，而且最重要的是不同进程的相互反馈的复杂性和重叠。在世界各地的特大城市中，越来越多的过程不受管制和非正式地发生，这在形式，功能和相互作用方面几乎没有理解和研究。

Megacities are results of globalisation processes and subject to global ecological, socio-economic, and political change. Reciprocally, they also influence these changes due to their development dynamics. New are not only the up to now unknown dimensions of the quantitative enlargement, the high population concentration, infrastructure, economic power, capital, and decisions, as well as the excessive and partially self-energising acceleration of all the development processes, but above all also the simultaneousness and overlapping of the different processes with mutual feedback. Increasingly, in megacities worldwide more and more processes take place unregulated and informally, which is hardly understood and researched with respect to form, function, and interaction.