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When settlement size is plotted against rank, on normal graph paper, a concave curve results; plotted on logarithmic scales, a straight line emerges—this is the rank-size pattern. Many developing countries show primacy: a sharp fall between the largest, primate city and the other cities.
The rank size rule states that the largest city in a given country will have of the population of the largest city in that country. If the largest city has a population 1,000,000, and we want to know the population of the fourth largest city, it will have of the population of the largest city.
23 sty 2017 · The rank size rule states that for a group of cities, usually those exceeding some size in a particular country, the relationship between size and rank of cities is given by: Pr = P1/r. Where Pr = population of the largest city ranked r. P = population of the largest city. r = rank of city r.
The Rank Size Rule is a pattern observed in urban systems where the size of a city is inversely proportional to its rank. In other words, the largest city in a country will be twice as large as the second largest, three times as large as the third largest, and so on.
The Rank Size Rule offers a pattern of proportionality in urban geography, helping to describe how populations are distributed across cities. It highlights that the higher the rank of a city, the smaller its expected population.
Rank Size Rule Definition. The rank-size rule is a rule about an inverse size to rank, often described as the size of cities in a country. The rank-size rule says that the second-largest city will have half the population as the largest.
The rank-size rule (or law) describes the remarkable regularity in many phenomena, including the distribution of city sizes, the sizes of businesses, the sizes of particles (such as sand), the lengths of rivers, the frequencies of word usage, and wealth among individuals.
