Cities are becoming denser. Not only are people moving from the countryside and outlying areas to look for better employment prospects in cities, people are also moving across international borders to live in the more competitive and connected global cities of the world. Many of the key cities in Asia have population densities 2,000-12,000 persons per sq. km, for instance, in Tokyo, Shanghai, Mumbai, and Singapore to name a few. This article discusses how dense cities can also be liveable by looking at examples across the globe.
Hee, L. (2015). Can dense cities really be liveable? In Springer Optimization and Its Applications (Vol. 102, pp. 81–104). Springer International Publishing. https://doi.org/10.1007/978-3-319-15030-7_5