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# Early models of the geography of the metropolis were unicellular: that

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Early models of the geography of the metropolis were unicellular: that  [#permalink]

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Updated on: 03 Sep 2019, 07:18
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Early models of the geography of the metropolis were unicellular: that is, they assumed that the entire urban district would normally be dominated by a single central district, around which the various economic functions of the community would be focused. This central business district (CBD) is the source of so-called high-order goods and services, which can most efficiently be provided from a central location rather than from numerous widely dispersed locations. Thus, retailers of infrequently and irregularly purchased goods, such as fur coats, jewelry, and antique furniture, and specialized service outlets, such as theaters, advertising agencies, law firms, and government agencies, will generally be found in the CBD. By contrast, less costly, more frequently demanded goods, such as groceries and housewares, and low-order services, such as shoe repair and hairdressing, will be available at many small, widely scattered outlets throughout the metropolis.

Both the concentric-ring model of the metropolis, first developed in Chicago in the late nineteenth century, and the sector model, closely associated with the work of Homer Hoyt in the 1930s, make the CBD the focal point of the metropolis. The concentric-ring model assumes that the varying degrees of need for accessibility to the CBD of various kinds of economic entities will be the main determinant of their location. Thus, wholesale and manufacturing firms, which need easy accessibility to the specialized legal, financial, and governmental services provided in the CBD, will normally be located just outside the CBD itself. Residential areas will occupy the outer rings of the model, with low-income groups residing in the relatively crowded older housing close to the business zone and high-income groups occupying the outermost ring, in the more spacious, newer residential areas built up through urban expansion. Homer Hoyt’s sector model is a modified version of the concentric-ring model. Recognizing the influence of early established patterns of geographic distribution on the later growth of the city, Hoyt developed the concept of directional inertia. According to Hoyt, custom and social pressures tend to perpetuate locational patterns within the city. Thus, if a particular part of the city (say, the east side) becomes a common residential area for higher-income families, perhaps because of a particular topographical advantage such as a lake or other desirable feature, future expansion of the high-income segment of the population is likely to proceed in the same direction. In our example, as the metropolis expands, a wedge-shaped sector would develop on the east side of the city in which the higher-income residence would be clustered. Lower-income residences, along with manufacturing facilities, would be confined, therefore, to the western margins of the CBD.

Although Hoyt’s model undoubtedly represented an advance in sophistication over the simpler concentric-ring model, neither model fully accounts for the increasing importance of focal points other than the traditional CBD. Recent years have witnessed the establishment around older cities of secondary nuclei centered on suburban business districts. In other cases, particular kinds of goods, services, and manufacturing facilities have clustered in specialized centers away from the CBD, encouraging the development of particular housing patterns in the adjacent areas. A new multicellular model of metropolitan geography is needed to express these and other emerging trends of urban growth.
1. The primary purpose of the passage is to
(A) explain the significance of Hoyt’s concept of directional inertia and its effect on patterns of urban growth
(B) emphasize the inadequacy of past attempts to explain patterns of urban geography
(C) analyze two varying theories concerning the distribution of residential areas within and around the metropolis
(D) describe two models of metropolitan geography and suggest their limitations
(E) show the importance of the central business district as a focus for urban growth

2. It can be inferred from the passage that according to a unicellular urban model, law firms are commonly located near the center of a city mainly because
(A) law firms benefit from the proximity to financial and governmental services that a center city location provides
(B) the demand for legal services is too irregular to support many small law firms in the outer districts of the city
(C) law firms require accessibility to the wholesale and retail businesses that provide a major share of their clientele
(D) the high-income groups that make up the primary users of legal services demand easy access to the firms’ offices
(E) the specialized service personnel required by a law firm are often interested in residing as close as possible to the city center

3. According to the concentric-ring model, in which of the following orders (from the center of the city outward) would the areas of the typical city be arranged?
(A) central business district, low-income housing, wholesale and manufacturing businesses, high-income housing
(B) central business district, wholesale and manufacturing businesses, low-income housing, high-income housing
(C) wholesale and manufacturing businesses, central business district, low-income housing, high-income housing
(D) central business district, high-income housing, wholesale and manufacturing businesses, low-income housing
(E) wholesale and manufacturing businesses, low-income housing, central business district, high-income housing

4. According to the passage, the sector model differs from the concentric-ring model primarily in that it
(A) stresses the role of topographic features in determining patterns of urban development
(B) emphasizes the continuing expansion of the city as an influence on urban development
(C) recognizes the importance of focal points of urban growth other than the traditional central business district
(D) assumes that the need for access to the central business district is the main determinant of urban developmental patterns
(E) takes into account the influence of certain social factors on urban geographical patterns

5. The passage states that both the concentric-ring model and the sector model
(A) inadequately represent the forms of urban development emerging in today’s cities
(B) need to be considerably refined to be of real use to students of urban growth
(C) have been superseded by more recently developed models of urban growth
(D) represent older cities more accurately than they do newly founded metropolitan areas
(E) fail to explain the rapid outward growth of cities that has occurred in recent years

6. According to the passage, an updated model of urban geography would indicate the
(A) phenomenal growth in population and area of suburban residential districts beyond the limits of the city itself
(B) recent decline in the influence of business and industry over the geographical patterns of urban growth
(C) growing importance of urban business and service centers located away from the central business district
(D) clustering of business facilities in recently built areas, while older districts are turned into residential areas
(E) gradual displacement of older urban centers by new, more highly specialized cities in geographically dispersed locations

7. All of the following are examples of the emerging trends of urban growth described in the last paragraph of the passage EXCEPT
(A) the construction in a suburban community of a large shopping mall where many of the local residents do most of their buying
(B) the opening of an industrial park on the outskirts of a declining older city
(C) the construction of hospital-medical school complex near a highway fifteen miles from a downtown business district
(D) the building of a residential development near a suburban tool factory to house the factory workers and their families
(E) the creation of a luxury housing development in a rural setting thirty miles from the center of a city

8. Which of the following best describes the organization of the last paragraph of the passage?
(A) It summarizes the information presented in the first three paragraphs and draws some conclusions.
(B) It outlines a new model, applies it to recent phenomena, and argues in favor of its adoption.
(C) It introduces no evidence in support of an existing model.
(D) It evaluates two models in the light of recent evidence and advocates the development of a third model.
(E) It compares one model unfavorably with another and develops the comparison by citing examples.

Originally posted by Bull78 on 06 Oct 2012, 15:29.
Last edited by SajjadAhmad on 03 Sep 2019, 07:18, edited 1 time in total.
Updated - Complete topic (389).
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Re: Early models of the geography of the metropolis were unicellular: that  [#permalink]

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16 Oct 2013, 08:27
Bull78 wrote:
Early models of the geography of the metropolis were unicellular: that is, they assumed that the entire urban district would normally be dominated by a single central district, around which the various economic functions of the community would be focused. This central business district (CBD) is the source of so-called high-order goods and services, which can most efficiently be provided from a central location rather than from numerous widely dispersed locations. Thus, retailers of infrequently and irregularly purchased goods, such as fur coats, jewelry, and antique furniture, and specialized service outlets, such as theaters, advertising agencies, law firms, and government agencies, will generally be found in the CBD. By contrast, less costly, more frequently demanded goods, such as groceries and housewares, and low-order services, such as shoe repair and hairdressing, will be available at many small, widely scattered outlets throughout the metropolis.

Both the concentric-ring model of the metropolis, first developed in Chicago in the late nineteenth century, and the sector model, closely associated with the work of Homer Hoyt in
the 1930s, make the CBD the focal point of the metropolis. The concentric-ring model assumes that the varying degrees of need for accessibility to the CBD of various kinds of economic entities will be the main determinant of their location. Thus, wholesale and manufacturing firms, which need easy accessibility to the specialized legal, financial, and governmental services provided in the CBD, will normally be located just outside the CBD itself. Residential areas will occupy the outer rings of the model, with low-income groups residing in the relatively crowded older housing close to the business zone and high-income groups occupying the outermost ring, in the more spacious, newer residential areas built up through urban expansion. Homer Hoyt’s sector model is a modified version of the concentric-ring model. Recognizing the influence of early established patterns of geographic distribution on the later growth of the city, Hoyt developed the concept of directional inertia. According to Hoyt, custom and social pressures tend to perpetuate locational patterns within the city. Thus, if a particular part of the city (say, the east side) becomes a common residential area for higher-income families, perhaps because of a particular topographical advantage such as a lake or other desirable feature, future expansion of the high-income segment of the population is likely to proceed in the same direction. In our example, as the metropolis expands, a wedge-shaped sector would develop on the east side of the city in which the higher-income residence would be clustered. Lower-income residences, along with manufacturing facilities, would be confined, therefore, to the western margins of the CBD.

Although Hoyt’s model undoubtedly represented an advance in sophistication over the simpler concentric-ring model, neither model fully accounts for the increasing importance of
focal points other than the traditional CBD. Recent years have witnessed he establishment around older cities of secondary nuclei centered on suburban business districts. In other cases, particular kinds of goods, services, and manufacturing facilities have clustered in specialized centers away from the CBD, encouraging the development of particular housing patterns in the adjacent areas. A new multicellular model of metropolitan geography is needed to express these and other emerging trends of urban growth.
1. The primary purpose of the passage is to
(A) explain the significance of Hoyt’s concept of directional inertia and its effect on patterns of urban growth
(B) emphasize the inadequacy of past attempts to explain patterns of urban geography
(C) analyze two varying theories concerning the distribution of residential areas within and around the metropolis
(D) describe two models of metropolitan geography and suggest their limitations
(E) show the importance of the central business district as a focus for urban growth

2. It can be inferred from the passage that according to a unicellular urban model, law firms are commonly located near the center of a city mainly because
(A) law firms benefit from the proximity to financial and governmental services that a center city location provides
(B) the demand for legal services is too irregular to support many small law firms in the outer districts of the city
(C) law firms require accessibility to the wholesale and retail businesses that provide a major share of their clientele
(D) the high-income groups that make up the primary users of legal services demand easy access to the firms’ offices
(E) the specialized service personnel required by a law firm are often interested in residing as close as possible to the city center

3. According to the concentric-ring model, in which of the following orders (from the center of the city outward) would the areas of the typical city be arranged?
(A) central business district, low-income housing, wholesale and manufacturing businesses, high-income housing
(B) central business district, wholesale and manufacturing businesses, low-income housing, high-income housing
(C) wholesale and manufacturing businesses, central business district, low-income housing, high-income housing
(D) central business district, high-income housing, wholesale and manufacturing businesses, low-income housing
(E) wholesale and manufacturing businesses, low-income housing, central business district, high-income housing

4. According to the passage, the sector model differs from the concentric-ring model primarily in that it
(A) stresses the role of topographic features in determining patterns of urban development
(B) emphasizes the continuing expansion of the city as an influence on urban development
(C) recognizes the importance of focal points of urban growth other than the traditional central business district
(D) assumes that the need for access to the central business district is the main determinant of urban developmental patterns
(E) takes into account the influence of certain social factors on urban geographical patterns

5. The passage states that both the concentric-ring model and the sector model
(A) inadequately represent the forms of urban development emerging in today’s cities
(B) need to be considerably refined to be of real use to students of urban growth
(C) have been superseded by more recently developed models of urban growth
(D) represent older cities more accurately than they do newly founded metropolitan areas
(E) fail to explain the rapid outward growth of cities that has occurred in recent years

6. According to the passage, an updated model of urban geography would indicate the
(A) phenomenal growth in population and area of suburban residential districts beyond the limits of the city itself
(B) recent decline in the influence of business and industry over the geographical patterns of urban growth
(C) growing importance of urban business and service centers located away from the central business district
(D) clustering of business facilities in recently built areas, while older districts are turned into residential areas
(E) gradual displacement of older urban centers by new, more highly specialized cities in geographically dispersed locations

7. All of the following are examples of the emerging trends of urban growth described in the last paragraph of the passage EXCEPT
(A) the construction in a suburban community of a large shopping mall where many of the local residents do most of their buying
(B) the opening of an industrial park on the outskirts of a declining older city
(C) the construction of hospital-medical school complex near a highway fifteen miles from a downtown business district
(D) the building of a residential development near a suburban tool factory to house the factory workers and their families
(E) the creation of a luxury housing development in a rural setting thirty miles from the center of a city

8. Which of the following best describes the organization of the last paragraph of the passage?
(A) It summarizes the information presented in the first three paragraphs and draws some conclusions.
(B) It outlines a new model, applies it to recent phenomena, and argues in favor of its adoption.
(C) It introduces no evidence in support of an existing model.
(D) It evaluates two models in the light of recent evidence and advocates the development of a third model.
(E) It compares one model unfavorably with another and develops the comparison by citing examples.

Nice passage BTW. Could someone elaborate on questions 4 and 7 please?

I think they were the most challenging. Particullarly question 4 difference between answer choices A and E
And in question 7, If I understood correctly luxury goods were supposed to be near the CBD, then it must be emerging trend in urban growth right?

Let me know what your thoughts are on these two
Will be happy to make some Kudos rain
Cheers
J
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Re: Early models of the geography of the metropolis were unicellular: that  [#permalink]

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18 Oct 2013, 12:14
I think that question 4 is E because the passage says " According to Hoyt, custom and social pressures tend to perpetuate locational patterns within the city." The way I see it, topography may create those social pressures which lead to patterns in a city, but the patterns are caused by social pressures, regardless of the causes of those social pressures.

Question 7 was tricky for me too, but I think that luxury housing on the outskirts of town is supported by the old models, and thus is not considered an emerging trend.
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Re: Early models of the geography of the metropolis were unicellular: that  [#permalink]

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01 Nov 2013, 02:31
2
Nice passage! Got all correct except question 7. But I think now I know the reason why the answer to this question is E.
Here's my explanation. The theories that are mentioned in the passage only concern about urban district so the keyword in choice E is rural setting. Therefore, it is the correct answer. Cheer!
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Re: Early models of the geography of the metropolis were unicellular: that  [#permalink]

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11 May 2015, 06:04
I got all questions correct in a bit over 11 minutes. I spent a disproportionate amount of time - definitely more than 2 minutes - on question 7 because it was so vague and POE wasn't working for me. Whenever I see "except" in the question stem, I now whip out POE so I don't rely on memory and (try to) cover all the answer choices.

My thought process is as follows: the relevant sections describes two categories of urban growth that, broadly, are (1) suburban business districts in older cities, and (2) specialised districts with surrounding residential areas. Now it's simply to go through each answer choice and decipher what is described:

A: shopping mall where local residents do most of their buying - category 2
B: industrial park in older city - category 1
C: hospital-medical school complex - hmmm...this sounds (and is) specialised - category 2
D: residential development near a tool factory - category 2 (if in doubt, read the third sentence of the last paragraph because it refers to manufacturing facilities)
E: luxury housing in rural area - no suburban business district nor specialised centre - bingo!

Juz2play provides a far simpler explanation but I'm merely going through what I was sort of thinking. I think having a broad interpretation of the descriptions of urban growth trends serves you better than trying to find key words because, with the latter strategy, you're going to miss the big picture, so to speak. I hope that helps someone.

Still, this is a good passage!
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Re: Early models of the geography of the metropolis were unicellular: that  [#permalink]

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12 May 2015, 04:29
The way I solved question 7 was, by focusing on the last para, which clearly mentions that the emerging trend is "the increasing importance of focal points other than the traditional CBD".

(A) the construction in a suburban community of a large shopping mall where many of the local residents do most of their buying: Clearly a new "focal point" is emerging in a suburban community

(B) the opening of an industrial park on the outskirts of a declining older city: Conforms with this sentence in the last para: manufacturing facilities have clustered in specialized centers away from the CBD.

(C) the construction of hospital-medical school complex near a highway fifteen miles from a downtown business district: Clearly a new "focal point" is emerging in a suburban community

(D) the building of a residential development near a suburban tool factory to house the factory workers and their families: Again, a new focal point away from CBD.

(E) the creation of a luxury housing development in a rural setting thirty miles from the center of a city: This is not an "emerging" trend, but something that has been a part of the CBD model, as suggested by the following lines in the passage: high-income groups occupying the outermost ring, in the more spacious, newer residential areas.

Hence, only E does not represent any "emerging trend".
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Re: Early models of the geography of the metropolis were unicellular: that  [#permalink]

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18 Jan 2016, 20:57
1. The primary purpose of the passage is to
(C) analyze two varying theories concerning the distribution of residential areas within and around the metropolis
(D) describe two models of metropolitan geography and suggest their limitations
I think choice A, B and E can be removed quite easily. Choice C is out since "two varying theories", the second theory is not different from the first one, but modified the first one.
P1 introduced the first theory, P2 told mainly about theory 2 and P3 discussed about their limitations and proposed a new theory. Choice D cover nearly all of these information.

2. It can be inferred from the passage that according to a unicellular urban model, law firms are commonly located near the center of a city mainly because
(B) the demand for legal services is too irregular to support many small law firms in the outer districts of the city
"Retailers of infrequently and irregularly purchased goods, such as fur coats, jewelry, and antique furniture, and specialized service outlets, such as theaters, advertising agencies, law firms, and government agencies, will generally be found in the CBD."

3. According to the concentric-ring model, in which of the following orders (from the center of the city outward) would the areas of the typical city be arranged?
(B) central business district, wholesale and manufacturing businesses, low-income housing, high-income housing
"wholesale and manufacturing firms, which need easy accessibility to the specialized legal, financial, and governmental services provided in the CBD, will normally be located just outside the CBD itself. Residential areas will occupy the outer rings of the model, with low-income groups residing in the relatively crowded older housing close to the business zone and high-income groups occupying the outermost ring"

4. According to the passage, the sector model differs from the concentric-ring model primarily in that it
(A) stresses the role of topographic features in determining patterns of urban development
(E) takes into account the influence of certain social factors on urban geographical patterns

The passage mentioned that "According to Hoyt, custom and social pressures tend to perpetuate locational patterns within the city." Two facts that are different from the first theory.
Choice A is incorrect since it just showed detailed information of the two factors, a part of the dissimilar of two theories.

5. The passage states that both the concentric-ring model and the sector model
(A) inadequately represent the forms of urban development emerging in today’s cities
"neither model fully accounts for the increasing importance of focal points other than the traditional CBD"

6. According to the passage, an updated model of urban geography would indicate the
(C) growing importance of urban business and service centers located away from the central business district
" Recent years have witnessed he establishment around older cities of secondary nuclei centered on suburban business districts."

7. All of the following are examples of the emerging trends of urban growth described in the last paragraph of the passage EXCEPT
(E) the creation of a luxury housing development in a rural setting thirty miles from the center of a city
"luxury housing development" has already appeared in outer of the city as mentioned in the first theory, it is not a new information or a changed happened in the emerging trends of urban growth.

8. Which of the following best describes the organization of the last paragraph of the passage?
(D) It evaluates two models in the light of recent evidence and advocates the development of a third model.
As information mentioned in the first question.
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Re: Early models of the geography of the metropolis were unicellular: that  [#permalink]

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22 Jul 2018, 04:33
I see an ongoing Debate over Questions 4 . This question is truly a GMAT like because it has simple language , but the inference questions require us to combine statements to arrive at correct answers.
Here is my analysis

Question 4 :
According to Hoyt, [url]custom and social pressures tend to perpetuate locational patterns within the city[/url]. Thus, if a particular part of the city (say, the east side) becomes a common residential area for higher-income families, [url]perhaps because of a particular topographical advantage[/url]such as a lake or other desirable feature, future expansion of the high-income segment of the population is likely to proceed in the same direction.

After reading the question , you need to read this excerpt from the passage and the answer the question . Now , the main factor considered by Hout is the influence of social factors . Now people tend to live in an area because of many factors and one among them is topograohy . We can infer that topography is one such factor from the usage of the word "perhaps" . Topography is given as a support for the main factor "Social factors" , but is not the main factor considred by Hayet .
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Re: Early models of the geography of the metropolis were unicellular: that  [#permalink]

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26 Jun 2019, 11:40
1
If anybody wonders about Q2, here's my two cents.

2. It can be inferred from the passage that according to a unicellular urban model, law firms are commonly located near the center of a city mainly because
(A) law firms benefit from the proximity to financial and governmental services that a center city location provides
(B) the demand for legal services is too irregular to support many small law firms in the outer districts of the city
(C) law firms require accessibility to the wholesale and retail businesses that provide a major share of their clientele
(D) the high-income groups that make up the primary users of legal services demand easy access to the firms’ offices
(E) the specialized service personnel required by a law firm are often interested in residing as close as possible to the city center

It is fairly easy to eliminate A, D, and C as they are far from what's mentioned in the passage. Between B and C, B is better.

<...> This central business district (CBD) is the source of so-called high-order goods and services, which can most efficiently be provided from a central location rather than from numerous widely dispersed locations. Thus, retailers of infrequently and irregularly purchased goods, such as fur coats, jewelry, and antique furniture, and specialized service outlets, such as theaters, advertising agencies, law firms, and government agencies, will generally be found in the CBD. <...>

Both the concentric-ring model of the metropolis <...> Thus, wholesale and manufacturing firms, which need easy accessibility to the specialized legal, financial, and governmental services provided in the CBD, will normally be located just outside the CBD itself. <...>

As evident in the above, it is clear that C is incorrect because the relationship is the other way around. B is supported by the very idea of efficiency.

If anybody has a better explanation, please share it.

Thanks
Re: Early models of the geography of the metropolis were unicellular: that   [#permalink] 26 Jun 2019, 11:40
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