Table 3

Parcel based positional error. Positional error is calculated by measuring the distance between property parcel locations and the true location of the houses. RMSE = Root Mean Square Error (radial). N = 1000 for each density class.

Percentiles

Urban (m)

Suburban (m)

Rural (m)

50%

8

8

15

75%

11

14

43

90%

15

22

113

95%

21

39

195

99%

62

177

582

Max

299

921

3,567

Mean

10

15

55

RMSE

18

46

211

Cayo and Talbot International Journal of Health Geographics 2003 2:10   doi:10.1186/1476-072X-2-10