size of urban population

With the growing urban population, the increasing size of cities, cities have become increasingly heavy traffic loads, cities can use the public space is increasingly small.

随着城市人口的不断增长，城市规模的不断扩大，城市的交通负荷变得越来越重，城市中可以利用的公共空间也越来越少。

We start at the rank-size rule by urban population and the rank-size rule by urban built-up area, and derive a mathematical relationship that the land use size of a city and its population.

从前人的成果，即以人口表示的城市位序-规模法则和以建成区面积表示的位序-规模法则出发，演绎出城市的用地规模和人口数量呈异速增长。

With the rapid expansion of city size and population concentration, improving the urban disaster prevention system has become a daunting task can not be ignored.

健全城市防灾系统成为一项不容忽视的艰巨任务，这是由城市规模的急速扩大和人口的过度集中所造成的。