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Table 3 Average census block group-level descriptive statistics of reliability sample areas (mean, SD)

From: Development, scoring, and reliability of the Microscale Audit of Pedestrian Streetscapes (MAPS)

Study site

Median household income ($)

Median age (years)

Percent of residents with college degree or higher (%)

Percent residents non-Hispanic White (%)

Net Residential Densitya

Intersection Densityb

Retail Floor Area Ratioc

Mixed Used

San Diego County, CA

47,293 (14,715)

35.0 (6.8)

21.0 (16.1)

62.2 (24.1)

3.98 (3.35)

46.64 (20.59)

0.22 (0.15)

0.20 (0.16)

Seattle/King County, WA

52,267 (19,704)

36.1 (5.2)

38.3 (18.9)

70.6 (20.8)

8.56 (7.25)

61.12 (21.27)

0.27 (0.15)

0.31 (0.19)

Baltimore, MD-DC

49,874 (19,991)

38.0 (6.2)

34.7 (24.5)

62.6 (28.6)

9.66 (8.54)

49.34 (24.79)

0.33 (0.21)

0.33 (0.19)

Overall

49,590 (17,767)

36.0 (6.2)

30.0 (20.6)

65.2 (24.2)

6.80 (6.67)

52.29 (22.60)

0.26 (0.17)

0.27 (0.19)

  1. a Residential units/acres of residential land.
  2. b Number of intersections per square kilometer.
  3. c Ratio of total building floor area to total parcel area.
  4. d Entropy measure of building floor area for mixed use (uses include 5 categories: civic and educational, entertainment, commercial, multi- and single-family, office).