Rumus Teori Titik Henti Menurut WJ Reilly

Assalamualaikum warahmatullahi wabarakatuh Welcome to the Andi Guru Geography channel Estimate the area of ​​the market between regions Based on the theory of stop points Regional interaction Basically, it is a back-and-forth relationship Which occurs between two regions or more Which can trigger trends, problems, or new phenomena The weakness of regional interaction is affected by three main factors The regional complementarity factor Intervening opportunity And spatial transfer ability How to measure regional interaction? The level of regional interaction can be measured Using several factors, including distance between regions The number of residents The number of road networks And the number of cities or villages in a region There are quite a few formulas for measuring regional interaction One of them is Gravitational model Theory of stop points Connectivity index Graphic theory And population potential In this slide we will discuss Theory of stop points The theory of stop points was invented by William G. Raleigh in 1931 Is a form of modification of the theory of interaction of the gravitational model Which has been presented in previous years This theory is used to find the maximum distance Interland area of ​​a city For example, between the Semarang area and Belura Raleigh applies the physical law of gravitation To measure the strength of trade between two cities This theory can be used in geographical space research And becomes the basis for limiting functional areas Theory of stop points In this theory, Raleigh found the concept that If both cities or regions have the same number of residents Then the trade area limit is exactly in the middle The distance that separates the two regions Meanwhile, if one region has a larger number of residents than the other Then the market area will become closer to cities with smaller population The implementation of the theory of stop points in geography This theory makes it easier to limit functional areas And more difficult if implemented with the survey method Theory of stop points can be used for Analysis of market area Conflict analysis Analysis of the impact of industry centers And to estimate the location of industry and public services The summary of the theory of stop points is The point of this theory is that The stop point distance from the location of trade centers or social services Which is smaller in size Is equal to the distance between the two trade centers However, it is equal to 1 plus the square root Of the number of residents in the area with more residents Divided by the number of residents in the area with fewer residents The summary is as shown in the above picture Where the explanation is Dab is the point of stop point that is sought Then dc is the area of area AB Pa is the number of residents in area A with more residents And bb is the number of residents in area B with fewer residents Simply, the summary is as shown in this picture There is also an example of the question, for example, as follows It is known that the number of residents in area A is 360,000 While in area B, 90,000 And area C, 22,500 Area A to B, 72 km While area A to C, 45 km The question is how many kilometers or how many kilometers The point of stop in area A to B and the point of stop in area A to C We start from the first dab That is the breaking point area between area A and B 72 or distance divided by 1 plus 360,000 divided by 90,000 This is 360,000 is the number of residents While 90,000 is the number of residents in area B Or equal to 72 divided by 1 plus root 4 Root 4 is 2 So 72 divided by 1 plus 2 Or 72 divided by 3 is equal to 24 While at the point of stop in area A to C is 45 The point of stop in area A to C is divided by 1 plus root 360,000 The number of residents in area A is divided by 22,500 residents in area C The result is 45 divided by 1 plus root 16 Or 4 So the result is 45 divided by 5 which is 9 km The point of stop in area A to B is the 24th kilometer from area B While in area C is the 9th kilometer from area C This point of stop theory is the same as the previous theory, namely the gravity model Can be applied with several conditions That is, if the condition of the population or the level of the economy in each area is relatively the same The condition of the nature or the relief in each area is also relatively the same The state of transportation facilities in each area is also relatively the same As well as the purchasing power of the people is also relatively the same Well, that was how to determine the point of stop in an area With the picking point theorem from William J. Rilley That's all, thank you for your attention Assalamu'alaikum warahmatullahi wabarakatuh