Demographia

The Costs of Smart Growth Revisited
Consumer Expenditures Lower
Where Sprawl is Greater

 

For years the anti-sprawl, anti-automobile movement (operating under the misnomer of “smart growth”) has been pumping out reports purporting to show how more market oriented, decentralized urban development imposes inordinate costs on consumers. These reports have virtually always focused on a particular element of cost, such as public infrastructure or transportation. One of the best examples was “Driven to Spend” report by the Surface Transportation Policy Project (STPP),[1] which developed a complex sprawl classification to which it applied US Department of Labor Consumer Expenditure Survey[2] transportation data. The not surprising conclusion was that households in more sprawling metropolitan areas pay more in transportation expenditures than those living in less sprawling areas. But there is more to the cost of living than public infrastructure and transportation and to genuinely examine the costs of more or less sprawl requires examination of all costs. To conclude that sprawl is more expensive on the basis of higher public infrastructure costs or higher transportation costs is akin to concluding that a house with a more expensive air conditioner is more expensive than another with a less expensive unit. Maybe yes and maybe no. There is more to the cost of a house than the cost of the air conditioner.

 

What is Sprawl? But before examining a more representative array of data, it is necessary to define sprawl. Despite the gallons of ink and gigabytes of broadband that have been employed to define sprawl, it is all very simple. Sprawl has to do with more land being occupied by the same number of people. An urban area of 1,000,000 population that covers 500 square miles sprawls more than one that covers 400 square miles. It is as simple as that. Or, the more densely populated an urban area, the less it sprawls. Further, virtually all so-called “smart growth” strategies require higher population densities.

 

False Doctrine: That having been said, it is appropriate to put aside the “great Satan” doctrinal characterization of sprawl. Sprawl is neither good nor bad in itself. There is no shortage of land in the United States that justifies any great concern about sprawl --- after 400 years of settlement; only 2.6 percent of the land is urbanized, according to the 2000 census. The anti-sprawl/anti-automobile crowd often equates “livability” with urban areas that sprawl less. Yet the data is clear, both internationally and nationally, that where sprawl is greater (densities are lower), people spend less time in traffic congestion, work trips take less time, air pollution is less intense and home ownership is greater.[3] Talk about livability.

 

The Latest Data: The 1999-2000 Consumer Expenditure data is now available. This report analyzes the new data using simple categories of sprawl, based upon the population densities of the urbanized areas within metropolitan areas of more than 1,000,000 population.[4] It further takes the STPP analysis further, to include the costs housing (including shelter, utilities and public services) and food consumed at home. Four categories of sprawl are employed (Table 1):

 

Table 1

Sprawl Classifications

Extent of Sprawl

Population per Square Mile

Cases

 I-Least Sprawl

4,500 & Over

2

 II-Less Sprawl

3,500-4,499

5

 III- More Sprawl

2,500-3,499

12

 IV-Most Sprawl

1,500-2,499

7

 

Transportation Expenditures: The population density categorization of sprawl does not yield the same results as the previous STPP analysis. Higher transportation expenditures are generally associated with less sprawl. The Least Sprawl areas (densities above 4,500) had annual household transportation expenditures nearly $1,300 above those of the Most Sprawl category (under 2,500 density). The Less Sprawl and More Sprawl categories exhibited transportation expenditures well below the Least Sprawl category and well above the Most Sprawl category (Table 1). The highest transportation expenditures were in San Francisco-San Jose (with one of the nation’s best transit systems), San Diego (with three new light rail lines and one new commuter rail line) and auto-oriented Houston. The lowest transportation expenditures were in Pittsburgh, Boston and Philadelphia (Table 7). The three highest expenditure metropolitan areas had an average density of 3,711, 62 percent above the 2,290 average of the three lowest expenditure areas.

 

Housing Expenditures: Large differences were identified in housing expenditures (shelter, utilities and public services). Expenditures in the Least Sprawl category were $4,175 higher than the Most Sprawl category (Table 2). The Expenditures in the More Sprawl category were $2,331 higher, and $1,506 higher in the More Sprawl category. The highest housing expenditures were in San Francisco-San Jose, New York and Washington, while the lowest were in Pittsburgh, Tampa-St. Petersburg and St. Louis (Table 7). The three highest expenditure metropolitan areas had an average density of 4.086, 74 percent above the 2,355 average for the three lowest expenditure areas.

 

Food at Home Expenditures: As in transportation and housing, the lowest expenditures were in the Most Sprawl category. Expenditures in the Least Sprawl category were $1,276 higher than the Most Sprawl category, while the Less Sprawl and More Sprawl categories were $528 and $483 higher respectively (Table 3). The highest food at home expenditures were in San Francisco-San Jose, Dallas-Fort Worth and Seattle, while the lowest were in Tampa-St. Petersburg, Milwaukee and Atlanta (Table 7). The three highest expenditure metropolitan areas had an average density of 3,433, 46 percent above the 2,351 average for the three lowest expenditure areas.

 

Total Expenditures: Overall expenditures on transportation, housing and food at home were by far the lowest in the Most Sprawl category, at $22,334 annually. This compares to (Table 5 and Figure 1):

 

  • $24,927 in the More Sprawl category, $2,592 higher than the Most Sprawl category (11.6 percent higher than the Most Sprawl category).
  • $25,576 in the Less Sprawl category, $3,242 higher than the Most Sprawl category (14.5 percent higher than the Most Sprawl category).
  • $29,066 in the More Sprawl category, $6,731 higher than the Most Sprawl category (30.1 percent higher than the Most Sprawl category).

 

The highest overall expenditures were in San Francisco-San Jose, San Diego and New York, while the lowest overall expenditures were in Pittsburgh, Tampa-St. Petersburg and Milwaukee (Table 7).[5] The three highest expenditure metropolitan areas had an average density of 4.192, 72 percent above the 2,435 average for the three lowest expenditure areas.

 

Figure 1

 

Home Ownership: It is not surprising that higher expenditures should be associated with lower levels of home ownership. The less sprawling, more expensive metropolitan areas tend to have significantly lower rates of home ownership than the areas that sprawl more (Table 6 and Figure 2).[6]

 

  • The highest home-ownership rate is in the Most Sprawl category, at 69 percent.
  • The second highest home-ownership rate is in the More Sprawl category, at 65 percent (a six percent smaller home ownership share).
  • The second lowest home-ownership rate is in the More Sprawl category, at 62 percent (a 10 percent smaller home ownership share).
  • The lowest home-ownership rate is in the Most Sprawl category, at 56 percent (a 19 percent smaller home ownership share).

 

Los Angeles, New York and San Diego have the lowest home-ownership rates, while Philadelphia, St. Louis and Pittsburgh have the highest home ownership rates (Table 7). The three highest home-ownership metropolitan areas had an average density of 2,392, 45 percent above the 4,352 average for the three lowest home-ownership areas.

 

Moreover, Dr. Matthew Kahn of Tufts University has published research indicating that this finding applies to African-Americans, who represent a disproportionate percentage of lower income households. Kahn found that higher rates of home-ownership were associated with more sprawling urban areas.[7] As we have noted elsewhere, the negative relationship between smart growth and home ownership would seem to suggest that the Administration compromises its potential for succeeding at increasing minority home ownership by its continuing and ill-conceived support of smart growth (principally at the Department of Housing and Urban Development, the Department of Transportation and the Environmental Protection Agency).[8]

 

Figure 2

 

The Bottom Line: What all of this suggests is that the costs of smart growth are indeed high --- thousands of dollars per year per household. And the lower rates of home-ownership associated with higher density development mean that lower income households, especially minorities, face even greater hurdles as they seek entry to the economic mainstream. Moreover, much of the wealth held by the nation’s middle-income households is the result of equity in owned homes. Continued implementation of density producing smart growth policies would seem to promise a less affluent America in the future.

 

Table 2

TRANSPORTATION

 Extent of Sprawl

 Population per Square Mile

Total

Compared to Most Sprawling

% Difference

 Least Sprawl

 4,500 & Over

 $8,714

 $1,281

 17.2%

 Less Sprawl

 3,500-4,499

 $7,816

 $384

 5.2%

 More Sprawl

 2,500-3,499

 $8,036

 $603

 8.1%

 Most Sprawl

 1,500-2,499

 $7,433

 $0

 0.0%

 

 

 

 

 

Table 3

HOUSING

 Extent of Sprawl

 Population per Square Mile

Total

Compared to Most Sprawling

% Difference

 Least Sprawl

 4,500 & Over

 $13,886

 $4,175

 43.0%

 Less Sprawl

 3,500-4,499

 $12,042

 $2,331

 24.0%

 More Sprawl

 2,500-3,499

 $11,217

 $1,506

 15.5%

 Most Sprawl

 1,500-2,499

 $9,711

 $0

 0.0%

 

 

 

 

 

Table 4

FOOD AT HOME

 Extent of Sprawl

 Population per Square Mile

Total

Compared to Most Sprawling

% Difference

 Least Sprawl

 4,500 & Over

 $6,466

 $1,276

 24.6%

 Less Sprawl

 3,500-4,499

 $5,718

 $528

 10.2%

 More Sprawl

 2,500-3,499

 $5,673

 $483

 9.3%

 Most Sprawl

 1,500-2,499

 $5,190

 $0

 0.0%

 

 

 

 

 

Table 5

TRANSPORTATION, HOUSING & FOOD AT HOME EXPENDITURES

 Extent of Sprawl

 Population per Square Mile

Total

Compared to Most Sprawling

% Difference

 Least Sprawl

 4,500 & Over

 $29,066

 $6,731

 30.1%

 Less Sprawl

 3,500-4,499

 $25,576

 $3,242

 14.5%

 More Sprawl

 2,500-3,499

 $24,927

 $2,592

 11.6%

 Most Sprawl

 1,500-2,499

 $22,334

 $0

 0.0%

 

 

 

 

 

Table 6

HOME OWNERSHIP

 Extent of Sprawl

 Population per Square Mile

Rate

Percentage Point Comparison to Most Sprawl

Percentage Comparison to Most Sprawl

 Least Sprawl

 4,500 & Over

 56%

 -13%

 -19%

 Less Sprawl

 3,500-4,499

 62%

 -7%

 -10%

 More Sprawl

 2,500-3,499

 65%

 -4%

 -6%

 Most Sprawl

 1,500-2,499

 69%

 0%

 0%

 

 

 

 

 

 Calculated from US Department of Labor Bureau of Labor Statistics Consumer Expenditure Survey 1999-2000

 

 

Table 7

Metropolitan Data and Rankings

DATA

Metropolitan Area

Urbanized Population per Square Mile

Transpor-tation

Housing

Food at Home

Total

Home-ownership Rate

 Atlanta

1,783

$7,056

$11,309

$4,689

$23,054

71%

 Baltimore

2,763

$7,185

$10,806

$5,531

$23,522

70%

 Boston

2,140

$6,587

$10,995

$4,924

$22,506

61%

 Chicago

3,741

$7,418

$12,192

$5,452

$25,062

65%

 Cincinnati

2,238

$7,911

$9,821

$5,492

$23,224

63%

 Cleveland

2,447

$8,277

$9,740

$5,274

$23,291

73%

 Dallas-Fort Worth

2,893

$8,948

$11,128

$6,865

$26,941

58%

 Denver

3,850

$8,340

$12,421

$5,676

$26,437

64%

 Detroit

2,766

$7,635

$10,341

$6,040

$24,016

72%

 Houston

2,856

$9,722

$10,266

$6,080

$26,068

61%

 Kansas City

2,334

$7,889

$9,251

$5,302

$22,442

69%

 Los Angeles

5,337

$7,701

$12,583

$5,490

$25,774

52%

 Miami

4,407

$7,463

$11,555

$5,560

$24,578

64%

 Milwaukee

2,699

$7,017

$10,603

$4,627

$22,247

60%

 Minneapolis-St. Paul

2,671

$8,303

$11,699

$5,794

$25,796

67%

 New York

4,299

$7,003

$13,649

$6,416

$27,068

54%

 Philadelphia

2,694

$6,872

$11,319

$5,408

$23,599

75%

 Phoenix

3,638

$8,858

$10,392

$5,486

$24,736

64%

 Pittsburgh

2,036

$6,359

$7,783

$5,032

$19,174

73%

 Portland

3,296

$7,800

$11,439

$5,655

$24,894

64%

 San Diego

3,419

$9,982

$13,100

$5,243

$28,325

55%

 San Francisco-San Jose

4,859

$9,726

$15,189

$7,442

$32,357

60%

 Seattle

2,546

$7,401

$11,714

$6,543

$25,658

64%

 St. Louis

2,457

$7,950

$9,079

$5,619

$22,648

74%

 Tampa-St. Petersburg

2,571

$7,752

$8,857

$4,589

$21,198

71%

 Washington

3,100

$7,813

$13,337

$5,705

$26,855

66%

 

 

 

 

 

 

 

 RANKINGS

Metropolitan Area

Urbanized Population per Square Mile

Transpor-tation

Housing

Food at Home

Total

Home-ownership Rate

 Atlanta

26

21

13

24

20

6

 Baltimore

14

20

16

13

17

8

 Boston

24

25

15

23

22

19

 Chicago

6

18

7

17

11

12

 Cincinnati

23

10

21

14

19

18

 Cleveland

21

8

22

20

18

3

 Dallas-Fort Worth

11

4

14

2

4

23

 Denver

5

6

6

9

6

13

 Detroit

13

16

19

6

15

5

 Houston

12

3

20

5

7

19

 Kansas City

22

11

23

19

23

9

 Los Angeles

1

15

5

15

9

26

 Miami

3

17

10

12

14

13

 Milwaukee

15

22

17

25

24

21

 Minneapolis-St. Paul

17

7

9

7

8

10

 New York

4

23

2

4

3

25

 Philadelphia

16

24

12

18

16

1

 Phoenix

7

5

18

16

13

13

 Pittsburgh

25

26

26

22

26

3

 Portland

9

13

11

10

12

13

 San Diego

8

1

4

21

2

24

 San Francisco-San Jose

2

2

1

1

1

21

 Seattle

19

19

8

3

10

13

 St. Louis

20

9

24

11

21

2

 Tampa-St. Petersburg

18

14

25

26

25

6

 Washington

10

12

3

8

5

11

 

 

 

 

 

 

 

 Density: From 2000 US Census, all urbanized areas within the metropolitan area

 Expenditure data from US Department of Labor Bureau of Labor Statistics Consumer Expenditure Survey: 1999-2000

 



[2] United States Department of Labor Bureau of Labor Statistics Consumer Expenditure Survey (www.bls.gov).

[3] Wendell Cox, Smart Growth and Housing Affordability, paper commissioned by the Millennial Housing Commission (http://www.mhc.gov/papers/coxsg.doc).

[4] All 26 areas for which the Consumer Expenditure Survey reports data.

[5] There is also a strong statistical relationship. A linear regression analysis with density as the independent variable and overall expenditures as the dependent variable indicates an “R” value of 0.67, well above the level required for reliability at the 99 percent significance level (0.50). Generally, each 1,000 increase in population density is associated with a $1,939 increase in overall expenditures.

[6] Again, there is a strong statistical relationship. A linear regression analysis with density as the independent variable and overall expenditures as the dependent variable indicates an “R” value of 0.63, well above the level required for reliability at the 99 percent significance level (0.50). Generally, each 1,000 increase in population density is associated with a 4.5 percentage point decline in home-ownership.

[7] Matthew E. Kahn, “Does Sprawl Reduce the Black/White Housing Consumption Gap?” Housing Policy Debate, Volume 12, Issue 1.

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